Lecture notes

Martin Goik

Stuttgart Media University / MI

	Available formats:	Webhelp (this document) Zip archive for offline usage EPUB
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	Source code provided at `https://gitlab.mi.hdm-stuttgart.de/goik/GoikLectures`
	Published under the terms of the Creative Commons Attribution 4.0 International Public License.

Table of Contents

113105 Software development 1

Getting started

Lecture related resources

Using the exercises

Related resources

Coached exercises

Using plain Java™

Using Intellij IDEA

“Hello, World” and friends.
Simple calculations
A conditional
A loop

Language Fundamentals

Integer, ASCII and Unicode

Primitive types

Arithmetic limitations

Conversions

Operators and expressions

Arithmetic and logical operators
Assignment operators
Unary operators
Operator precedence

The if conditional statement

if-then-else
Using else if

The switch statement

From blocks to methods

while
do ... while
for

Logic related external exercises

Using automated tests.

Multi-dimensional arrays

Objects and Classes

Static methods

Working with objects

Object methods

Encapsulation and access control
Getter and setter methods
Signatures
Method overloading
Constructors
Scopes

Class members and methods

A mathematical table.
Interest calculations
Programmer's favourite expression
Lotteries revisited
The greatest common divisor and the common multiple

Maven project dependencies

Maven command line usage
Intellij IDEA on top of Maven

Building a library of mathematical functions.

Maximum and absolute value
Factorial, the direct way
Factorial, the recursive way
Binomials, the recursive way
Implementing exponentials.
Adding sine
Strange things happen

Unit testing

Tests and implementation
Improving the algorithm
Parameterized testing
Helpful Junit methods
Technical details
Example: A class representing fractions

Value types and reference types

Arrays reconsidered

Varargs method parameter
Reconsidering System.out.format().
java.util.Arrays helpers
Extending arrays
Understanding static int main(String[] args)
Tic-tac-toe
Providing statistical data
Prime numbers revisited
The median of a given sample.
Plotting functions

Method calls, the details

Enumerations (enum)

Enumeration by integer representation
Enumeration by dedicated class
Defining a private constructor
enum replacing class

Core Classes

Using class Math
String exercises
Analyzing file pathnames

Inheritance

Overriding equals()

Overriding toString()

final methods

Abstract methods

Geometry classes reconsidered

protected access

final classes

The instanceof operator

The @Override annotation.

Runtime polymorphism

Error Handling

Checked vs unchecked exceptions
Exceptions and Junit
Variants
Class java.lang.Exception

Working with Numbers

Boxing and unboxing
Number Parsing
Number Formatting
Working with Money
Generating Random Numbers

Advanced topics

interface definitions and abstract Classes

Interfaces and sorting
A nonsense generator
An interface based plotter

Application deployment I

Preparations
Exercises
Part II, Exercises

Reading character streams

Preparations
Exercises

Collections

Preparations
Collections I, Exercises
Collections I, Exercises
Collections III, Exercises
Collections IV, Exercises
Maps 1, Preparations
Exercises
Towns and country names
Creating an overview of grades

Examination bonus point projects

Weather forecast
Reverse Polish notation (RPN) calculator
Currency converter, Summer 2017
An address database, Winter 2016
Poor man's UNIX grep, Summer 2016
Project Euler's sieve, Winter 2015

Exercising past examinations

Starting an exam
Implementing the project skeleton
Finish the exam

Examination hints

Past Software Development 1 examinations

2025 winter
2025 summer
2024 winter
2024 summer
2023 winter
2023 summer
2022 winter
2021 winter
2021 summer
2020/1 winter
2020/2 winter
2020 summer
2019 winter
2019 summer
2018 winter
2018 summer
2017 winter
2017 winter
2015 winter
2015 Sommer
2014 Winter

Past Software Development 1 exam preparing tests

Test 01
Test 02
Test 03
Test 04
Test 05

Working with git

Working with git locally.
Shared development with centralized remote.
Conflicts

Apache Maven

The project object model pom.xml
Plugins
Dependencies
Lifecycle, phases and goals

List of software development 1 lecture exercises

113492 Technical Documentation

Software independent considerations

General remarks

Common building blocks

Block level elements

Target formats
Selected elements
Schematron
Customizing
Assemblies
Styling the editor application

Modular documents

RelaxNG Schema

Transforming documents

Target format HTML
Target format print

TeX / LaTeX
Docbook

LaTeX hello,... world
Important elements
Macro
A complete document

Project proposals

Building a reveal.js editor
Authoring journey descriptions
Gitlab pages integration of Docbook
Codingbat reloaded
XML based exercise compilations
Past projects

List of software development 1 lecture exercises

113473 Database and application development

Database features

Selected database products overview

Installation
Features
Exercises

Installation
Features
High performance sharding cluster
Exercises

JDBC: Accessing Relational Data

Persistence in Object Oriented languages

Introduction to JDBC™

Write access, principles
Write access, coding!
JDBC™ and security
Read Access
Dynamically load a JDBC™ driver
Handling surrogate keys
Transactions

Configuring a Maven based Eclipse Java™ project with Hibernate

Creating a JPA configuration

A round trip working with objects

Persisting objects
Loading Objects by primary key
Loading objects by queries
Criteria based queries

Mapping single entities and database tables

Transient properties
Properties and NULL values
Defining keys
Composed keys
Indexes (non-unique)
Renaming tables and attributes
Changing the default type mapping
Object states and transitions
XML to JPA using JAXB

Inheritance

Single table per class hierarchy
Joined subclasses
Table per concrete class

Mapping related Components and entities

Primary keys revisited
Entity and value types
Mapping components

orphanRemoval vs. CascadeType.DELETE

Project ideas

Extending UNIX grep to databases
Database copy tool
Creating data samples
Database schema evolution tool

List of Database and application development lecture exercises

113475 Software defined Infrastructure

Manual server management

Preliminaries

Hetzner cloud administration GUI

Public / private key pair
Pass phrases and ssh agent
Agent forwarding
Port forwarding
X11 forwarding
Network data transfer using scp, rsync and ssh

Prerequisites

Ubuntu / Debian Package management

Prerequisites

Cloud provider

Working with Terraform
Cloud-init
Terraform modules
Volumes
Terraform loops
Terraform and DNS
Generating web SSL certificates
Private networks

Preliminaries
Exercises

Recommended Preparations
Exercises

Apache web server

Preliminaries
Exercises

Exercises

Network file systems served by Samba

Prerequisites
Samba server installation

Recommended Preparations
Exercises

Introduction
Exercises

Functional checks
SNMP based checks
ssh based checks

List of Software defined Infrastructure lecture exercises

Common topics

Project documentation

Bibliographic links

List of Figures

1. How much time to invest?
2. Your biggest enemies
3. German humour
4. AI tools and learning
5. 4 most imperative study objectives
6. Tuition attendance and exam results summer 2025
7. Examinations and result
8. Moodle and tuition groups
9. BW Lehrpool pool rooms
10. Recommended reading resources I
11. Recommended reading resources II
12. Online tutorials
13. Unix and the terminal
14. Online programming, automated feedback
15. Online programming I
16. Online programming II
17. Choosing the SD1 bwLehrpool VM
18. Intellij IDEA IDE
19. Live lecture additions
20. Embedded exercises
21. Using the exercises
22. HdM mail server
23. Configure MI VPN client access
24. MI Cloud server
25. MI File server
26. MI Git versioning server
27. Coached exercises
28. Edit - compile - execute
29. Defining class Hello
30. Compiling Java™ file
31. Command line Java™ file compilation
32. Java byte code file Hello.class
33. Source code vs. bytecode
34. Executing byte code file Hello.class
35. Command line byte code file Hello.class execution
36. Wrap up: The edit - compile - execute cycle
37. Intellij IDEA requires a JDK™
38. Intellij IDEA installation
39. Idea »Ultimate« license types
40. Alternative: Using the HdM license server
41. Creating a new Java project
42. Getting first Java™ impressions
43. Manual calculation: Abacus
44. Mechanical calculation: Cash register
45. Electromechanical calculation: Zuse Z3
46. Vacuum Tube: Eniac
47. Transistor: Microprocessor ICs
48. Z80 8-bit data bus
49. Progress in hardware 1
50. Progress in hardware 2
51. Simple facts:
52. Unsigned 3 bit integer representation
53. Binary system addition
54. 3 bit two-complement representation
55. 3 bit two complement rationale: “Usual” addition
56. Signed 8 bit integer binary representation
57. 7-bit ASCII
58. 7-bit ASCII with even parity bit
59. Western European characters: ISO Latin 1 encoding
60. Unicode UTF-8 samples
61. Java types
62. Java signed integer primitive types
63. Four int literal representations of decimal 29
64. Java unsigned integer, floating point and boolean primitive types
65. Variables: Handles to memory
66. Local variable declaration
67. Declare, assign and use
68. Combining declaration and initialization
69. Compound declarations
70. Identifier in Java™:
71. Identifier name examples:
72. Java™ keywords.
73. Note on contextual keywords
74. Variable naming conventions
75. Constant variables
76. Case sensitivity
77. Define before use
78. Type safety
79. Compile time analysis
80. Type inference (JDK™ 10)
81. Forcing conversions by cast
82. Watch out!
83. Casting long to int
84. Casting double to short
85. «C» programming language “liberal” assignment policy:
86. Consequences
87. From the report
88. Dynamic typing in PERL
89. Dynamic typing in PERL, part 2
90. Using final
91. Reference type examples
92. float and double
93. Four ways representing 35
94. Choose your output representation
95. Know your limits!
96. Literal examples
97. int literals
98. Just kidding ...
99. Strange things I
100. Strange things II
101. Limited floating point arithmetic precision
102. Nearest float to 0.1F
103. FloatConverter
104. Integer division: Take care!
105. Widening from byte to short
106. Narrowing from int literal to char variable
107. A widening «ladder»
108. A narrowing «ladder»
109. The binary plus operator
110. Binary operator output type
111. Detecting arithmetic overflow (Java 8+)
112. Dividing by zero
113. Generic binary operator
114. The modulus operator %
115. Binary operator type examples
116. No binary + operator yielding byte
117. int expression assignment
118. Constant expression assignment
119. The logical “and” operator &
120. The += operator
121. The &= operator
122. Arithmetic assignment operators
123. Logical assignment operators
124. Increment operator ++
125. Different range behaviour!
126. Cast required
127. Prefix and postfix notation
128. Operator examples
129. Precedence of “*” and “/” “+” over “+” and “-”
130. A binary operator's operands evaluation priority
131. “left to right” or “right to left”
132. Operator precedence references
133. “+” acting as string concatenation operator
134. Implicit string conversion and concatenation
135. Java™ comment flavors
136. Inline comments by /* ... */
137. Javadoc™ comments
138. Statements: General syntax
139. Statement examples: Declaring and assigning variables
140. Expression vs. statement
141. Multiple statements per line
142. Debugging multiple statements per line
143. Method local variable scope
144. Nested blocks and variable scopes
145. Block purposes
146. Principle of swapping two variables
147. Swapping two variables
148. Swapping two variables using a block
149. Conditional block execution
150. if syntax
151. if ... else
152. if ... else syntax
153. Best practices comparing for equality
154. Single statement branches
155. Nested if ... else
156. Enhanced readability: if ... else if ... else
157. if ... else if ... else syntax
158. User input recipe
159. Using a Scanner class collecting user input.
160. Converting numbers to day's names
161. Numbers to day's names: The hard way
162. Better: Using switch
163. switch Syntax
164. Switching on strings
165. switch expressions
166. Assigning switch expressions
167. Allowed types for switch statements
168. Labels must be constant expressions
169. Two blocks, same logic
170. Replacing two blocks by one method
171. Passing values to methods
172. Passing values to methods
173. Why loops?
174. Number of repetitions given by user input
175. A while loop
176. Combining increment and termination condition
177. while syntax
178. Empty while body
179. A do ... while loop
180. do ... while vs. while
181. do ... while syntax
182. Frequent usage of while
183. Replacing while(...) by for(...;...;...)
184. for syntax
185. for variable scope
186. for variable scope equivalence
187. for vs. while relationship
188. Nested loops 1
189. Nested loops 2
190. Better readability: row and column in favour of i and j
191. Calculating values
192. Response to coding errors
193. Unit test concept
194. alarmClock(...) with errors
195. Testing alarmClock(...)
196. Testing alarmClock(...) details
197. Motivating Arrays
198. Per member repeating tasks
199. Example: int array of primes
200. Java Visualizer
201. Loop prime values
202. Mind the limit!
203. Safer: Using length
204. Even better: “for-each” style loop
205. Mind the limit, part two
206. Primitive data one step initialization
207. Array
208. Two syntax variants
209. Passing an anonymous array to a method
210. Two-dimensional arrays
211. Behind the scenes
212. Memory allocation
213. Nested array initialization
214. Nested »ragged« array initialization
215. A method adding two values
216. Syntax of method definition
217. The static modifier matters!
218. Documentation: Javadoc™ is your friend!
219. Separating usage and definition
220. Representing two-dimensional points
221. General class structure
222. What's a class anyway?
223. Rectangle objects
224. A class describing rectangles
225. Rectangle class and instances
226. Generated diagrams
227. The new operator: Creating rectangle instances
228. Syntax creating instances
229. Assigning attribute values to class instances
230. Instance memory representation
231. References and null
232. Checking for object presence
233. Why packages ?
234. Rules and conventions
235. Fully qualified class name vs. import
236. Don't be too lazy!
237. Special: Classes in package java.lang
238. Class, package and file system
239. Source hierarchy view
240. Object methods
241. Get a rectangle's area
242. Currently: rectangle's area by class method
243. OO: rectangle's area by instance method
244. Transition to OO
245. Scaling a rectangle
246. Scaling method implementation
247. Scaling method signature
248. Using the scale(...) method
249. Method definition syntax
250. A rectangle's perimeter
251. getPerimeter() method implementation
252. Using Rectangle.getPerimeter()
253. Access control: Overall objectives
254. Example: Two ways implementing a day's time
255. private modifier access violation
256. Absent access modifier, access violation
257. Access rules
258. “Tips on Choosing an Access Level”
259. Direct access vs. setter method
260. Why adding setter methods?
261. Implementation change: Minutes only, no hours
262. Defining type signatures
263. Type signature examples
264. Defining method signatures
265. Method signature examples: Ignore return type!
266. Method overloading: Same name, different signature
267. Overloading, alternate names
268. No overloading in »C«
269. »C« requires unique function names
270. No distinction on return type
271. Method signatures rationale
272. Method signatures rationale
273. Example: IO.print(...)
274. Creating and initializing rectangles
275. Defining a constructor
276. Constructor syntax
277. Constructors
278. Multiple overloaded constructors
279. Constructor calls within constructor
280. Instances by overloaded constructors
281. No constructor vs. default constructor
282. Non - default constructor, but no default constructor
283. Employee example package hierarchy
284. Circle and variable scopes
285. Documenting classes and methods
286. Generated Javadoc
287. Refactoring «r» ⇒ «radius»
288. Scope assignment problem
289. this overriding method scope
290. Why should we require an instance?
291. Solution: Replace instance method by class method using static
292. Club membership objectives
293. Step 1: Implementing club member names.
294. Showing membership info.
295. Step 2: Adding membership numbers.
296. Showing membership numbers.
297. Member creation steps
298. Accessing the club's overall member count?
299. Accessing the club's member count
300. Syntax accessing class members
301. static / non-static wrap up
302. Finally understanding IO.print(ln)
303. Newton's letter to Robert Hooke
304. Application execution prerequisites
305. Why Maven project management?
306. Example: Creating PDF using iText7
307. Maven iText library pom.xml definition
308. Itext transitive dependencies
309. Class location in iText library
310. Class location in iText library
311. Maven repositories
312. Maven archetypes
313. Project «lottery» depending on «common»
314. Providing project «common»
315. Publish project «Common»'s library
316. Content of archive common-1.0.jar
317. Consuming project «lottery»
318. External libraries view
319. Using Helper.factorial(...) computing $(\begin{matrix} n \\ k \end{matrix}) = \frac{n!}{k! (n - k)!}$
320. Maven artifact dependency.
321. Using the MI Sd1 project template
322. CLI example
323. Supplementary MI Maven archetypes
324. CLI testing mi-maven-archetype-quickstart
325. CLI archetype details
326. Generated project layout
327. Maven compile
328. Compilation file view
329. Maven package
330. Executing Java™ archive second-0.9.jar
331. Maven javadoc:javadoc
332. Maven clean
333. Intellij IDEA Maven support
334. Adding MI Maven server
335. New MI archetype project
336. pom.xml content changes
337. Intellij IDEA generating Javadoc™
338. Pascal's triangle representing binomial coefficients.
339. An implementation sketch for the exponential
340. Comparing exponential and approximation
341. Comparing sin(x) and its approximation.
342. Recommended reading
343. Test categories
344. Example: Computing prime numbers
345. Unit test principle
346. Test driven development
347. Steps in Unit Testing
348. Step 1 + 2: Specify method, write skeleton
349. Execution yet being flawed
350. Sample test data
351. Step 3: Junit based specification test
352. Junit skeleton test result (Maven CLI)
353. Junit skeleton test result (IDE)
354. Providing explanatory failure messages:
355. Step 3: Providing more prime tests
356. Step 3: Prime mass testing
357. Step 4: Implement skeleton
358. Step 5: Testing our first implementation
359. Implementation observation
360. Changing the implementation
361. Regression test
362. Systematic error debugging
363. Error correction in detail
364. Parameterized tests
365. Required Junit dependency
366. CSV parameter testing
367. CSV parameter testing results
368. CSV parameter file based testing
369. Available comparison methods
370. Caution comparing float / double !!
371. Weird arithmetics?
372. Limited representation precision
373. Solving the issue
374. The @Test annotation
375. The Assertions class
376. Importing dependencies
377. Dependency archive content
378. Value vs. reference type variables
379. Different behaviour!
380. Value variable Details
381. Reference variable Details
382. Only «call-by-value» in Java™
383. «call-by-value» details
384. «call-by-reference» for objects?
385. «call-by-reference» details
386. No «call-by-reference» in Java™!
387. No «call-by-reference» details
388. C++ reference operator “&”
389. C++ offers «call-by-reference» by virtue of “&”
390. C++ «call-by-reference» details
391. Arrays of object references
392. Array instances are not objects
393. Array creation details
394. Array parameter passing
395. Parameter passing details
396. Array initializer: Value and reference types
397. Expecting one int argument
398. One, two or three int arguments by overloading
399. Observations
400. Arbitrary number of arguments by array
401. Observations
402. Vararg: Syntactic sugar by ellipsis »...«
403. Varargs: Generalizing arrays
404. Using varargs
405. Further reading on varargs
406. Arrays.toString(...) and Arrays.sort(...)
407. Arrays.binarySearch(...)
408. Arrays.fill(...)
409. Arrays.copyOfRange(...)
410. Arrays.equals(...)
411. Lack of extendability
412. Extend array using a block
413. Replacing extending block by method
414. Extension result
415. Replacing copying loop by Arrays.copyOf()
416. static void main(String[] args)
417. Intellij IDEA run configuration
418. Intellij IDEA run configuration
419. Creating executable jar
420. Two Tic-tac-toe players fighting each other.
421. Two Tic-tac-toe players fighting each other.
422. Method calling
423. Three variable scopes
424. Scope lifetimes
425. Two runtime memory categories
426. IDE debugger
427. Motivation
428. Weekly offered lectures
429. Weekly offered lectures by simple numbers
430. Weekdays int representation
431. Weekly offered lectures using constants
432. Converting index values to day names
433. Providing lecture info
434. Sample lectures
435. Pitfall #1 of 2: Bogus day index value
436. Pitfall #2 of 2: Method argument order mismatch
437. Enumeration by class instances
438. Class instance per enumeration value
439. switch no longer works
440. Re-writing getPrice()
441. Pitfall: Creating an undesired instance
442. Define a private Day constructor
443. Preventing undesired Day instance creation
444. Adding a day name attribute
445. enum Day replacing public class Day
446. switch statements back working again
447. enum constructor being implicitly private
448. A minimal enum
449. An enum's parent class
450. Iterate over all enum values
451. Definition order matters!
452. Get an enum instance by its ordinal value
453. Get an enum instance by its constant's textual name
454. Openjdk source code repository
455. Superclass Object
456. String literals
457. OpenJDK String implementation
458. String copy constructor
459. Copy constructor and heap
460. Operator == and equals()
461. Remarks == vs. equals()
462. Operator == and equals() implications
463. equals() is being defined within respective class!
464. Math.sin(double x)
465. Guess who's inheriting the money
466. Biology and inheritance
467. Duplicate code
468. Idea: Centralize common code
469. Common and specific properties
470. Basic shape inheritance
471. Inheritance
472. Implementing Shape hierarchy
473. Creating instances
474. Shape constructor
475. Creating Rectangle instances
476. Rectangle constructor
477. Shape.equals()
478. Rectangle.equals()
479. Printing a Shape's info
480. Overwriting toString()
481. Shape extending Object
482. Overriding toString() in class Shape.
483. Logging Rectangle instances
484. Overriding toString() in Rectangle.
485. Rectangle extending Shape
486. Implementing Circle.toString()
487. Shape inheritance hierarchy and toString()
488. Moving Shape instances
489. Implementing Shape movements
490. Fools are everywhere!
491. Solution: final prevents overriding
492. Calculating a shape's area
493. Desired: Polymorphic getArea() call
494. Problems:
495. abstract method getArea()
496. abstract method getArea()
497. What's a “shape” anyway?
498. No instances of abstract classes.
499. Mandatory getArea() implementation.
500. Facts about abstract fields, methods and classes.
501. Moving shapes
502. protected access
503. final classes
504. final classes rationale
505. “Defeating” polymorphism
506. Defining equals(...): Expectations
507. Defining equals(...) of Shape instances
508. Comparing center coordinates
509. Implementing Rectangle.equals()
510. Implementing Circle.equals()
511. Testing equality of Shape objects
512. Overriding Object.toString()
513. @Override: Compile time error detection
514. Remarks on @Override
515. Polymorphism: Iteration over Object instances
516. Meta info of an instance
517. Instance meta info
518. Polymorphic dispatch / late binding
519. Example: Executing move()
520. Implementing getArea()
521. Implementing getArea() in class Shape ?
522. Solution: Abstract method getArea() in abstract class Shape
523. Polymorphic getArea() call
524. Runtime polymorphic dispatch
525. Polymorphic dispatch pseudo implementation
526. Compile- vs. runtime errors
527. NullPointerException (NPE for short)
528. NullPointerException is a class
529. Throwing an exception
530. Catching an exception by try {...} catch {...}
531. try {...} catch {...} syntax
532. Checked and unchecked exceptions
533. Further readings
534. Checked and unchecked exceptions
535. Expected exceptions in Junit
536. Just finally, no catch
537. try-with-resources (Java™ 7)
538. Scanner implementing AutoCloseable
539. No close() method in e.g. class String
540. Method printStackTrace()
541. Ascending inheritance ordering
542. Wrong ordering
543. Implementing convert
544. Problem: “Silent” errors
545. Step 1: Find exception base class
546. Step 2: Derive CardinalException
547. Step 3: Throwing CardinalException
548. Step 4: Unit test throwing CardinalException
549. Stack of integer values
550. Java™ collection features
551. Behind the scenes
552. Boxing and unboxing
553. Boxing syntax comparison
554. Parsing Integer user input
555. Parsing binary representation
556. Standard parse methods
557. Excerpt from java.util.Locale
558. Locale properties
559. Get a NumberFormat instance
560. Create a custom formatter
561. Polymorphic number parsing
562. Limited float precision
563. Limited double precision
564. Using BigDecimal
565. Chaining BigDecimal operations
566. BigDecimal features
567. Using static double random()
568. Seeding a pseudo random generator
569. Interface examples
570. Observations
571. Writing strings to file
572. Using Text2File
573. Possible Text2File errors:
574. Employ “try-with-resources”
575. interface syntax
576. The AutoCloseable promise
577. abstract class replacement
578. interface vs. abstract class
579. interface MyAutoCloseable
580. Extending MyAutoCloseable to flush
581. Using MyFlushable
582. Inheritance hierarchy
583. Upcoming topics
584. Interfaces implemented by class String
585. The Comparable interface
586. class String and Comparable
587. Comparison examples
588. Ascending and descending names
589. API requirements
590. Sorting strings alphabetically
591. Situation dependent sorting criteria
592. Implementing flexible sorting
593. Comparator in action
594. Case insensitive sort
595. Sort descending by lambda expression
596. Account hierarchy
597. Students and lecturers
598. An array of strings
599. An associative array describing month lengths
600. Grouping towns by country names
601. Collaborative efforts
602. Project rules
603. Internal code documentation
604. Internal code documentation hints
605. Javadoc™ mismatches
606. (Automated) tests
607. Deployment and execution
608. Marking criteria
609. Sample forecast session
610. Sample forecast invocation
611. Underlying data provider
612. cities.list.json.gz providing cities
613. ma/Copy URL result to file
614. Parse city data
615. Parse weather data
616. Requirements
617. Logging
618. Minimalist token scanner
619. Scanner output -1.34 0.34 + sqrt
620. Adding error detection
621. Error message
622. Running the currency converter terminal application.
623. Exam training by Guacamole
624. Environment hints:
625. Preparing an examination
626. Generating Javadoc™.
627. Programming hints
628. The implement - test - implement cycle
629. Finishing the exam
630. Personal examination cheat sheets
631. Unit tests in examinations
632. Example interface definition
633. Corresponding test
634. Don't cheat!
635. Unit tests strategy in examinations
636. Steps creating a new project
637. Creating a project at MI gitlab
638. Cloning a git project
639. Enter project folder, add Readme.md
640. Committing change set
641. Push to upstream repository
642. Inserting a Maven project
643. git status 1
644. Adding Maven files to repository
645. git status 2
646. Commit Maven project files
647. git status 3
648. Push to upstream again
649. Reverting changes
650. Pull changes from upstream
651. From https://www.urbandictionary.com
652. Useful links
653. Initialize git project
654. Configure author related data.
655. Adding resources to project index and staging area
656. Committing change set
657. Project versioning status
658. Adding a comment
659. git diff tracing changes
660. Reverting individual file.
661. Compiling, Math.class and Print.class.
662. Math.class, Print.class and versioning.
663. Show project's log
664. Switch to an older revision ...
665. ... and forth to current master's HEAD
666. Centralized remote repository
667. Step 1: Create remote repository
668. Step 2: Retrieve remote repository address
669. Step 2: Connect to remote repository
670. Step 3: Push local to remote
671. Step 3: Pull remote to local
672. Alternative: Create remote, then clone
673. Conflicting changes
674. Commit schedule
675. User B: git push fails
676. User B: git pull fails as well
677. Merge conflict details
678. Struggling for resolution
679. Merging Print.java manually
680. Commit and push merge
681. Maven: Recommended reading
682. What is Maven anyway?
683. Maven: Facts and benefits
684. Convention Over Configuration
685. Maven project layout
686. The project object model file
687. pom.xml characteristics
688. pom.xml vs. Makefile
689. «Hello, world» pom.xml
690. Executing «compile» phase
691. Examining the Java™ version culprit
692. Resolving encoding / Java™ version issues
693. POM inheritance
694. The Super POM
695. pom-4.0.0.xml content
696. Favour https in ~/.m2/settings.xml
697. Resolving to effective pom.xml
698. Plugin architecture
699. Sample plugins
700. Example: The maven-javadoc-plugin
701. Adding test capabilities
702. Dependency listing
703. Absence of hamcrest in pom.xml
704. ~/.m2/repository/junit/junit/4.12/junit-4.12.pom
705. Transitive dependencies
706. Oblivious to test implementation: TestNG
707. Phases
708. Maven lifecyles and phases
709. hooking into phase
710. Why XML based publishing?
711. XML features
712. Editors, compositors, designers ...
713. Promises in publishing
714. Publishing reality
715. Single source publishing
716. Separating Structure, content and format
717. Separating concerns
718. Content
719. Hierarchical structure
720. Hierarchical structure, XML source
721. Presentation
722. Example 1: HTML 5, pure structure
723. Example 2: TeX / LaTeX
724. Separating structure and presentation(s)
725. Sample technical document
726. Observations
727. Pros and cons of TeX / LaTeX
728. Tools of the trade
729. Inline formatting
730. Paragraphs
731. Lists
732. Tables
733. Images
734. Mathematical formulas
735. Cross references
736. Document sectioning
737. Modular document components
738. What is Docbook?
739. Authoring and publishing
740. Document representation
741. Software centric schema
742. Document targets
743. Docbook components
744. Target format overview
745. Tooling / Software
746. Different schema languages
747. Plain HTML
748. Web help
749. Eclipse help
750. Printed output
751. Paragraph
752. Itemized list
753. Ordered list
754. Glossary list
755. Nested lists
756. Reference
757. A table
758. A MathML equation
759. A TeX equation
760. Reference
761. Figure
762. Image map + calloutlist
763. Video
764. A warning
765. Reference
766. Recursive sections
767. Non-recursive sections
768. Two different link flavours
769. Choosing a top level element
770. Allowed 5.1 top level elements
771. Schematron on top of RelaxNG
772. Example: xml:id and permalink
773. Using Display #Anchors
774. Considerations author based permalink
775. Schematron permalink rule
776. HTML customization overview
777. Target specific configuration
778. Link stability
779. use.id.as.filename = 1
780. Parameter: use.id.as.filename
781. Customization parameter ulink.target
782. callout.unicode / callout.graphics
783. Links
784. Hooking into XSL
785. Categories
786. Example: videos
787. Links
788. Customize by CSS
789. Example CSS modifications
790. Styling the editor
791. Motivating modular documents
792. Monolithic document problems
793. Document decomposition
794. A monolithic document
795. Decomposing documents
796. XML grammar defining languages
797. Address list schema
798. Format conversion problem
799. XSL template rules
800. Example: Formatting <title> elements
801. Basic FO introduction
802. XMLMind Editor
803. Oxygenxml Author
804. Vendor links
805. Inverse editing
806. Document representation
807. Components
808. BibTeX
809. Makeindex example
810. Makeindex work flow
811. Extension example: MusiXTeX
812. Flavours
813. Components
814. Editors
815. reveal.js authoring tools: Principle
816. reveal.js features #1 of 3
817. reveal.js features #2 of 3
818. reveal.js features #3 of 3
819. reveal.js observations
820. Authoring tool project goals
821. Principle
822. Required / to be acquired skills
823. Principle
824. Codingbat: Desired features
825. Desired features
826. CRUD operation
827. Query
828. Schema
829. Procedures / triggers
830. Transactions / recovery
831. Data access control
832. API support
833. Installing Docker
834. Why LDAP?
835. LDAP introduction
836. Running a Docker container
837. Using docker-compose
838. Installing Apache Directory Studio
839. Administrator access to your DIT
840. Administrator access to your server's data tree
841. Administrator access to your server's configuration
842. Terminology
843. Adding an entry
844. Adding a new attribute
845. Replacing an attribute value
846. Deleting an attribute entirely
847. Multi valued attributes
848. Set semantics of multivalued attributes
849. Deleting selected attribute values
850. Query scope
851. Query filter
852. Schema support
853. Implementations
854. Implementations
855. Exercises
856. Why MongoDB?
857. Running a Docker container
858. Using docker-compose
859. Manual user creation
860. Log in as user explorer
861. Using IntelliJ
862. Idea show all databases
863. Terminology / Hierarchy
864. Adding a document
865. Updating attributes
866. Deleting a document
867. Deleting multiple documents
868. Multi valued attributes
869. Set semantics of multivalued attributes
870. Deleting selected attribute values
871. Deleting an attribute
872. Query filter
873. Schema validation support
874. Violating required field
875. Schema types
876. Enforcing unique keys
877. On the downside
878. Implementations
879. Implementations
880. Sharding rationale
881. Sharding rationale
882. Exercises
883. Prerequisite knowledge
884. Persistence [Bauer2015]
885. Java™ transient instances
886. RDBMS persistent records
887. Persisting transient User instances
888. Observations
889. Networking between clients and database server
890. JDBC™ features
891. JDBC™ in a three-tier application
892. JDBC™ connecting application server and database.
893. JDBC™ connection parameter
894. Components of a JDBC™ URL
895. IETF Uniform Resource Identifier
896. URL examples
897. Sub protocol examples
898. No standard port assignments ...
899. ... but Postgresql made it into Linux
900. JDBC™ architecture
901. DriverManager: Bootstrapping connections
902. Example: Mysql connection implementation
903. Driver libraries
904. Driver libraries by Maven
905. Driver unavailable
906. Connection interface
907. Statement interface
908. JDBC™ instances and relationships.
909. Important Connection methods
910. Important Statement methods
911. JDBC™ and threading.
912. JDBC™ connection pooling
913. pom.xml driver runtime scope
914. Person table
915. Objective: insert person record
916. JDBC™ backed data insert
917. Result
918. Two JDBC™ configurations
919. Figure 916, “JDBC™ backed data insert ” deficiencies
920. Why properties?
921. message.properties string externalization
922. Properties code sketch
923. Intellij IDEA settings, preconditions
924. Database related unit test phases
925. Implementing unit tests
926. Spring is your friend
927. Project layout
928. Closing connections
929. Employ AutoCloseable
930. Sniffing a JDBC™ connection by an intruder.
931. Setting up Wireshark
932. Capturing results
933. Mysql™ security
934. Mysql™ security
935. Assembling SQL
936. SQL injection principle
937. Preventing traffic tickets
938. Trouble at school
939. SQL injection impact
940. SQL injection relevance, [Clarke2009]
941. Handling injection attacks, part 1
942. Handling injection attacks, part 2
943. Input filtering
944. Validating user input prior to dynamically composing SQL statements.
945. Error message being presented to the user.
946. SQL statements in Java™ applications get parsed at the database server
947. Two questions
948. Addressing performance
949. Addressing performance mitigation
950. Restating the SQL injection problem
951. Solution: Use java.sql.PreparedStatement
952. PreparedStatement principle.
953. Three phases using parameterized queries
954. PreparedStatement example
955. Injection attempt example
956. Limitation: No dynamic table support!
957. JDBC™ read and write
958. Server / client object's life cycle
959. JDBC™ record container
960. Reading data from a database server.
961. Names and birth dates of friends
962. Accessing friend's database records
963. Important ResultSet states
964. JDBC™ to Java™ type conversions
965. Java™ to JDBC™ type conversions
966. Error prone type accessors!
967. Polymorphic accessor
968. Access by column name
969. Access by column index
970. Problem: null value ambiguity
971. Resolving null value ambiguity
972. Problem: Dynamic driver configuration
973. Shim driver (facade)
974. Users and groups
975. Isolation level
976. JDBC™ Isolation level
977. Setting the isolation level
978. Reasons for using Maven
979. Transitive dependencies
980. A basic persistence.xml JPA configuration file.
981. JPA persistence provider
982. Mapping hibintro.v1.model.User instances to a database.
983. A basic User class.
984. Mapping properties to attributes.
985. Annotating integrity constraints
986. Database schema mapping instances of hibintro.v1.model.User.
987. Loading a single object by a primary key value.
988. Retrieving hibintro.v1.model.User instances by HQL.
989. Business rules for projects
990. Persistence related object states
991. Introducing inheritance mapping
992. Modelling payment.
993. A single relation mapping.
994. Mapping the inheritance hierarchy.
995. Inserting payment information
996. Figure subclasses
997. Joined subclass mapping.
998. Implementing Object.equals(Object) by natural keys
999. JPA caches.
1000. Common project steps #1/3
1001. Common project steps #2/3
1002. Common project steps #3/3
1003. Common technologies
1004. UNIX grep sample
1005. Similarities and differences
1006. Database grep requirements
1007. Connection profile handling
1008. Search level specification
1009. Property based searches
1010. Source and target database
1011. Copy process
1012. Considerations
1013. Sample data creation
1014. Schema evolution
1015. Techniques
1016. Subscribe to lecture
1017. Versioned code and documentation content
1018. Online documentation samples
1019. Create and publish a Hetzner account
1020. Your cloud project
1021. Server creation prerequisite: A Firewall
1022. Your first server
1023. Server access by ssh
1024. No ssh password based login
1025. Server access by web gui
1026. Current server security flaws
1027. Safety considerations
1028. ssh-keygen for elliptic key creation
1029. An elliptic ssh public / private key pair
1030. Result of ssh-keygen execution (client side)
1031. Transfer public key from client to server
1032. Cleaning up!
1033. Tedious: Passphrase required for each remote login
1034. Solving the passphrase issue
1035. Behind the scenes: How does it work?
1036. Intermediate host hopping
1037. Intermediate host hopping fails
1038. Intermediate host hopping options
1039. Enable ssh agent forwarding
1040. Forwarding port 80 to 2000 at localhost
1041. Frequent use e.g. connecting to remote database server
1042. X11 browser application forwarding
1043. Network file copy using scp
1044. Network file copy using rsync and ssh.
1045. Shell / Bash
1046. Choosing a text editor
1047. Secure Shell
1048. Working with files
1049. Network
1050. Processes handling
1051. Suggested readings:
1052. .deb packages
1053. The dpkg command
1054. The apt command
1055. Rationale using PPA's
1056. What's it all about?
1057. Terraform resources
1058. Creating databases
1059. Creating cloud resources
1060. Your course documentation: Code structure
1061. The env.template file
1062. Getting started: The Hetzner API token
1063. Minimal Terraform configuration
1064. Terraform init
1065. Terraform plan
1066. Terraform apply
1067. A word on storing secrets
1068. Credentials by E-Mail
1069. Problems: 😟
1070. ssh access, firewall
1071. ssh access, public key
1072. Apply ssh key access
1073. Output data details #1/2
1074. Output data details #2/2
1075. Problem 2: VCS and visible secrets 😱
1076. Addressing secrets by variable
1077. Addressing secrets by file
1078. Addressing secrets by Bash .env file
1079. Managing Terraform states
1080. Introduction and reference
1081. In a nutshell
1082. Configuration options
1083. Bash DIY
1084. Terraform interface to Cloud Init
1085. Using template files
1086. cloud-init file validation
1087. Yaml syntax quirk 1: Missing indentation
1088. Yaml missing indentation resolution
1089. Yaml syntax quirk 2: Wrong indentation
1090. Cloud-init configuration file validation
1091. Watch out for your enemies!
1092. Problem: Duplicate known_hosts entry on re-creating server
1093. Solution: Generating known_hosts ...
1094. ... cloud-init config using yamlencode / JSON
1095. ... and ssh wrapper
1096. Failsafe console login
1097. Avoiding Yaml parsing issues
1098. Terraform module Documentation
1099. Example: Creating a JSON host meta data file
1100. Parent module / sub module layout
1101. Parent module implementation
1102. Sub module implementation
1103. Sub module, JSON template file Tpl/hostdata.json and result
1104. Parent module vs. sub module context
1105. A volume: The easy way
1106. Unix mount
1107. Volume details
1108. Providing a mount point's name
1109. De-coupling server and volume creation
1110. Loop documentation
1111. Using count
1112. Subdomain per group
1113. Key file location
1114. Querying DNS by zone transfer
1115. Creating an »A« record with TTL=10
1116. Modify by delete/create
1117. Mind record caching
1118. Bind server ns1.hdm-stuttgart.cloud
1119. DNS provider
1120. DNS provider configuration
1121. Defining an “A” record
1122. Understanding web certificates
1123. Certificate trust level
1124. Certificates by Terraform
1125. dns_challenge provider
1126. rfc2136 provider configuration
1127. Bind server log file
1128. Private subnet overview
1129. Terraform network and subnetwork creation
1130. Gateway: External and internal interface
1131. intern host
1132. Lack of internet access
1133. Possible solutions
1134. http proxy apt-cacher-ng
1135. Cloud-init problem
1136. Service ready query script
1137. Terraform “service ready” dependency hook
1138. Documentation links
1139. DNS query commands
1140. DNS forward lookup
1141. Display A-record result only
1142. Important record types
1143. Name Servers: Query type NS
1144. Recommended readings
1145. Openldap server documentation
1146. What is LDAP anyway?
1147. LDAP Server cli bind
1148. Document Information Tree (DIT)
1149. Relative and absolute DNs
1150. User example
1151. objectClass
1152. objectClass clarifications
1153. Augmenting inetOrgPerson by posixAccount
1154. Structural objectClass definitions
1155. Search scopes
1156. Predicate based queries
1157. LDAP bind types
1158. LDIF exchange format
1159. LDIF sample
1160. OpenLdap server architecture
1161. An example LDAP Tree
1162. External documentation
1163. URI to filesystem mapping
1164. Virtual hosting
1165. Implementing virtual hosting
1166. IP based virtual hosting
1167. IP based, pros / cons
1168. Name based virtual hosting
1169. Name based, pros / cons
1170. LDAP backed authentication
1171. PHP FPM server
1172. File services
1173. Customer demands
1174. Driving factors
1175. Selected cloud file services
1176. Selected self hosting products
1177. Nextcloud features
1178. Lightning integration
1179. Installation
1180. Docker hub
1181. Search images
1182. Pull image using CLI
1183. Pull Nextcloud image
1184. Nextcloud based on Alpine
1185. Inspect image
1186. Search an image's tags
1187. Nextcloud image by version
1188. List images by CLI
1189. Nextcloud latest image
1190. Duplicate Nextcloud images
1191. Maven ringing a bell?
1192. Un tag image by version
1193. Remove image by version
1194. Starting Nextcloud container
1195. List running containers
1196. Enter running container
1197. Remove container
1198. List volumes
1199. List orphaned volumes
1200. Remove volumes
1201. Technical features
1202. Documentation tool chain proposal

List of Tables

1. 4 Byte Two's complement representation of int values.
2. Exercises in 113105 Software development 1
3. Exercises in 113492 Technical Documentation
4. Exercises in 113473 Database and application development
5. Exercises in 113475 Software defined Infrastructure

List of Equations

1. Calculating binomials by cancelling common factors.
1. Power series definition of $f (x) = e^{x}$
2. Power series definition of $f (x) = \sin (x)$
3. Reordering of terms with respect to an implementation.

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