Applying all operation on two numbers.

 import java.util.*;

public class allOper {

public static void main(String args[]) {

Scanner sc = new Scanner(System.in);

System.out.println("Enter the first number");

double a = sc.nextInt();

System.out.println("Enter the second number");

double b = sc.nextInt();

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));

System.out.println("a" + "mod" + "b" + "=" + (a % b));

}

}