Calculator using if

Write a Java Program to make Calculator using if 

import java.util.Scanner;
public class CalciUsingIf 
{
	public static void main(String[] args) 
	{
		int ans=0;
		Scanner s = new Scanner(System.in);
		System.out.println("Enter First Number...");
		int n1=s.nextInt();
		System.out.println("Enter Second Number...");
		int n2=s.nextInt();
		System.out.println("Enter Operator (+, -, *, /)...");
		char op = s.next().charAt(0);
		System.out.println(n1+" "+ op +" "+n2+" = ");
			if(op=='+')
			{
				System.out.println(ans=n1+n2);
			}
			if(op=='-')
			{
				System.out.println(ans=n1-n2);
			}
			if(op=='*')
			{
				System.out.println(ans=n1*n2);
			}
			if(op=='/')
			{
				System.out.println(ans=n1/n2);
			}
	}
}

Output:

Enter First Number...

5

Enter Second Number...

6

Enter Operator (+, -, *, /)...

+

5 * 6 = 11

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