CR-MicroLabs-JavaFundamentals-DanDoBetterDrills

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

  • Complete each of the method stubs in 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.
  • 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)
  • String compareTwoStrings(String)
  • Character getMiddleCharacter(String)
  • String getFirstWord(String)
  • String getSecondWord(String)
  • String reverseTheTwo(String)