Handout #1 - Chapter 2 - Chandler High School

 

Last Name (print): ______________ First Name ______________    8/4/2006

 

1. Write the value of the expression after each of the following statements is executed?  Make sure you clearly specify the type of the value for each expression.

 

public class PracticeCh2 {   

   public static void main (String[] args) {

       

            // declare variables

            int k = 0, j = 1;

            double x = 2.5, y = -1.5;

            int m = 18 , n = 4;

           

            String s = "Hello";

            String t = "World";

 

            System.out.println(s.substring(1, 3)); ______________________

            System.out.println(s.length() + t.length()); ____________

            System.out.println(s + t); ________________________

            System.out.println("Hello".compareTo(s));          _____________

 

           

            System.out.println((int) (10.0 /4.0) * 6 -1 / 2 * 3);    _____________________________

            System.out.println(1.0 + 15 / 4);  ____________________

 

            System.out.println(8 % 3 + (double) (15 / 7) / 2);____________________

            System.out.println(5.0 / 4 ); _______________

 

            System.out.println(x + n * y - (x + n) * y); _______________                           

            System.out.println(5 * x - n / 5); ____________________

                       

            System.out.println(m / n ); _____________________

            System.out.println(m / n  + m % n); ______________

           

            System.out.println(Math.pow(x, 2)); _____________________

            System.out.println(Math.round(100 * x)); ____________

            System.out.println(Math.sqrt (Math.pow(n, 2))); ________________                

   }  // method main

}  // class Data