Calculator using simple switch...case

Write a Java Program to make Calculator using switch...case 

import java.util.Scanner;
public class calculator 
{
	public static void main(String[] args) 
	{
		int n1,n2;
		int ans = 0;
		Scanner scan = new Scanner(System.in);
		System.out.println("Enter First Number: ");
		n1=scan.nextInt();
		System.out.println("Enter Second Number: ");
		n2=scan.nextInt();
		System.out.println("Enter The Operator (+, -, *, /):  ");
		char operator=scan.next().charAt(0);
			switch(operator)
			{
				case '+' :
					ans=n1+n2;
					break;
				case '-' :
					ans=n1-n2;
					break;
				case '*' :
					ans=n1*n2;
					break;
				case '/' :
					ans=n1/n2;
					break;
				default:
					System.out.println("Wrong input....");
					System.out.println("Exit...");
			}
		System.out.println(n1+" "+ "*" +" "+n2+" = "+ans);	
	}
}

Output:

Enter First Number: 
10
Enter Second Number: 
20
Enter The Operator (+, -, *, /):  
*
10 * 20 = 200       

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