Java Development Exercises

Java Development Exercises

Exercise #1: Waking Up and Smelling the Roses (or the Coffee)

• Things To Do

Exercises #2: Connecting the Dots (or the Class Files)

• Things To Do
• Fibonacci1.java: A Java program mentioned in this exercise

Exercise #3: Enjoying Coffee at Home

• Things To Do

Exercise #4: Give a Man a Fish...

• Things To Do
  
  
• Java Documentation Described in This Exercise:
  
  
  • Documentation of a Class for Java 8
  • Documentation of this Class for Java 11
  • Documentation of this Class for Java 12
    
    
• Programs Considered, So Far
  
  
  • Fibonacci1.py: Python implementation of an algorithm considered in Lecture #2
  • Fibonacci1.java: Java implementation of an algorithm considered in Lecture #2
    
    
  • Fibonacci2.py: Python implementation of an algorithm considered in Tutorial Exercise #3
  • Fibonacci2.java: Java implementation of an algorithm considered in Tutorial Exercise #3
  • Fibonacci2a.java: Better Java implementation of an algorithm considered in Tutorial Exercise #3
    
    
  • Fibonacci3.py: Python implementation of an algorithm considered in Lecture #3
  • Fibonacci3.java: Java implemenation of an algorithm considered in Lecture #3
  • Fibonacci3a.java: Better Java implmenentation of an algorithm considered in Lecture #3
    
    
  • Fibonacci4.py: Python implementation of an algorithm considered in Tutorial Exercise #4
  • Fibonacci4.java: Java implementation of an algorithm considered in Tutorial Exercise #4
  • Fibonacci4a.java: Better Java implementation of an algorithm considered in Tutorial Exercise #4

Exercise #5: What Do You Mean, My Code isn't Flawless, Part One...

• Things To Do
  
  
• Java Code
  
  
  • Fibonacci2b.java: Yet another Java implementation of an algorithm considered in Tutorial Exercise #3
  • Fibonacci3b.java: Yet another Java implementation of an algorithm considered in Lecture #3
  • Fibonacci4b.java: Yet another Java implementation of an algorithm considered in Tutorial Exercise #4
  • FibLoopTest.java: Unit tests for the program “Fibonacci3b.java”, implemented using JUnit
    
    
• Additional Documentation
  
  
  • junit.org/junit4: Home page for Version 4 of the “junit” Test Harness
  • www.vogella.com/tutorials/JUnit/article.html: A readable tutorial about how to use JUnit to implement unit tests

Exercise #6: What Do You Mean, My Code Isn't Flawless, Part Two...

• Things To Do
  
  
• Java Code:
  
  
  • Fibonacci3b.java: Program to be Tested
    
    
Shell Scripts and Output


• test_Fibonacci3b_main.sh: Shell script to test the main method of the above program
• test_main_output.txt: Output that should be proved using the above shell script
• test_Fibonacci3b.sh: Another shell sccript that also includes unit testing of the method fibLoop
  
  
• mywiki.wooledge.org/BashGuide: A well-regarded tutorial about the development of Bash shell scripts

Exercise #7: Documentation on Steroids I — How To Be More Assertive

• Things To Do
  
  
• Java Code
  
  
  • Fibonacci3c.java: From Lecture #3 — A reliable, but less efficient, Fibonacci number calculator
  • Fibonacci4c.java: From Tutorial Exercise 4; the program to be considered in this exercise

Exercise #8: Holy Software Flaw, Batman!!!! How are We Going to Get Out of This?!?!?

• Things To Do
• Fibonacci4c.java: Deliberately incorrect implementation of an algorithm from Tutorial Exercise #4
• Oracle’s Documentation of jdb

Exercise #9: Documentation on Steriods II — javadoc

• Things To Do
  
  
• Fibonacci.java: Yet another version of the “Fibonacci number calculator” program
• An Even Better Way to Compute the Fibonacci Numbers: Sketch of the proof of correctness of the new algorithm implemented in the above program
  
  
• SlowFibonacciTest.java: JUnit tests for the “slowFibonacci” method
• EvalTest.java: JUnit tests for the “eval” method
• test_Fibonacci_main.sh: Shell script with tests for the main method in the above class
• test_Fibonacci.sh: Shell script providing tests for the entire Fibonacci class
  
  
• Fibonacci.html: Documentation of the above class produced using the “javadoc” utility
  
  
• Oracle’s Documentation for Javadoc

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