Program 4.1: Addition Examples

You use ints pretty much as you expect.

class AddInts {
 
  public static void main (String args[]) {
 
    int i = 1;
    int j = 2;
    int k;
 
    System.out.println("i is " + i);
    System.out.println("j is " + j);
  
    k = i + j;
    System.out.println("i + j is " + k);
    
    k = i - j;
    System.out.println("i - j is " + k);
 
  }
 
} 
Here's what happens when you run AddInts:

% javac AddInts.java
% java AddInts
i is 1
j is 2
i + j is 3
i - j is -1
%

Copyright 1996 Elliotte Rusty Harold
elharo@sunsite.unc.edu
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