Java Fundamentals

• Objective:

  • To complete the method stubs in each of the provided classes
    • MathUtilities
    • PredicateUtilities
    • StringUtilities

• Purpose:

  • To establish familiarity with
    • primitive data-types
    • method signatures and return statements
    • String operations

• Classes to be completed:

  • MathUtilities
  • PredicateUtilities
  • StringUtilities

• Instructions

  1. Fork this Repository
     • fork this repository to your personal github account
     • clone your forked repository to your local machine.
     • Complete steps 2 and 3
     • git add your changes to the list of your commited files.
     • git commit your added files to the list of your staged files.
     • git push your staged files to your remote repository.
     • submit a pull request which compares Zipcoder master to your master.
  2. Begin by first ensuring the main method in your ZipcodeRocks class prints "Zipcode Rocks!" upon execution.
  3. Complete each of the method stubs in each of the main classes provided.
     • main classes are located in src.main.java.com.zipcodewilmington.danny_do_better_exercises
     • There are comments above each method stub to describe the expected behavior.
  4. Upon completion, open and run the TestSuite class to ensure that all tests have 100% success.
     • TestSuite is located in src.test.java.com.zipcodewilmington.danny_do_better_exercises

Predicate Utilities

• A predicate is a clause which states something about a subject. (e.g., is assigning in "Leon is assigning homework")
• Ensure each of the test cases passes successfully in the class TestPredicateUtilities by completing each of the method stubs in the class PredicateUtilities.
• Method Stubs to be completed
  • boolean isGreaterThan(int x, int y)
  • boolean isLessThan(int x, int y)
  • boolean isGreaterThanOrEqualTo(int x, int y)
  • boolean isLessThanOrEqualTo(int x, int y)

Math Utilities

• Ensure each of the test cases passes successfully in the class TestMathUtilities by completing each of the method stubs in the class MathUtilities.
• Method Stubs to be completed
  • Integer add(int, int)
  • Long add(long, long)
  • Short add(short, short)
  • Byte add(byte, byte)
  • Float add(float, float)
  • Double add(double, double)
  • Integer subtract(int, int)
  • Long subtract(long, long)
  • Short subtract(short, short)
  • Byte subtract(byte, byte)
  • Float subtract(float, float)
  • Double subtract(double, double)
  • Integer divide(int, int)
  • Long divide(long, long)
  • Short divide(short, short)
  • Byte divide(byte, byte)
  • Float divide(float, float)
  • Double divide(double, double)
  • Integer multiply(int, int)
  • Long multiply(long, long)
  • Short multiply(short, short)
  • Byte multiply(byte, byte)
  • Float multiply(float, float)
  • Double multiply(double, double)
  • Boolean returnTrue
  • Boolean returnFalse

String Utilities

• Ensure each of the test cases passes successfully in the class TestStringUtilities by completing each of the method stubs in the class StringUtilities.
• Method Stubs to be completed
  • String concatenation(String, String)
  • String concatenation(int, String)
  • String getPrefix(String)
  • String getSuffix(String)
  • Boolean compareTwoStrings(String)
  • Character getMiddleCharacter(String)
  • String getFirstWord(String)
  • String getSecondWord(String)
  • String reverseTheTwo(String)

Whats next?

• The next lab can be found here.