Question

please answer this program correctly ​

Answer 1

import java.util.*;

public class operator

{

public static void main(String args[])

{

Scanner in = new Scanner(System.in);

double n1,n2,r;

char ch;

System.out.println("Enter two numbers = ");

n1 = in.nextDouble();

n2 = in.nextDouble();

System.out.println("enter + for addition, - for subtraction , * for multiplication and / for division =");

ch = (char)in.next();

switch(ch)

{

case '+': r = n1+n2;

System.out.println(n1+" + "+n2+" = "+r);

break;

case '-':

r = n1-n2;

System.out.println(n1+" - "+n2+" = "+r);

break;

case '*':

r= n1*n2;

System.out.println(n1+" * "+n2+" = "+r);

break;

case '/': r= n1/n2;

System.out.println(n1+" / "+n2+" = "+r);

break;

default :System.out.println("invalid choice");

}

}

}