public class Test03 {

 public static void main(String[] args) {
  int a = 4;
  int b = 2;
  
  System.out.println("a + b = " + (a + b));
  System.out.println("a - b = " + (a - b));
  System.out.println("a * b = " + (a * b));
  System.out.println("a / b = " + (a / b));
  System.out.println("a % b = " + (a % b));

 }

}

a + b = 6
a - b = 2
a * b = 8
a / b = 2
a % b = 0