Project B

Objective:

Strings and Operators

• Write a static method, compare(), that takes three String arguments and uses all the relational and equivalence operators (< <= > >= == !=) to compare the second and third Strings and print the results using the first String as an identifying label for the comparison.
• Also perform the equals() test as in:

// ...
  
  boolean result;
  String string1, string2;
  
  // ...  

  result = string1.equals(string2);

// ...

• Use the following definition for main():

public static void main(String[] args) {
  compare("\"Hello\" vs \"Hello\"", "Hello", "Hello");
  String s = new String("Hello");
  compare("\"Hello\" vs s", "Hello", s);
  compare("\"Hello\" vs \"Goodbye\"", "Hello", "Goodbye");
}

• If any comparisons fail to compile, comment them out, do not remove them.
• Name your main() class CompareStrings.

Using the Modulus Operator and the for Statement

• Write a program that uses two nested for loops and the modulus operator (%) to detect and print prime numbers (integers that are not evenly divisible by any other numbers except for themselves and 1).
• The program should print all primes from 1 to 100, inclusive.
• Name your main() class Primes.

Submit your work via the CATE form for Project B.

Legend: method/function keyword literal

2007/03/03