Calculator Class Exercise

package test;

import java.util.Scanner;

public class Calculate {

	public static void main(String[] args) {
	Scanner scan= new Scanner(System.in);
	double num1=0, num2=0; char oper;

	System.out.println("Enter two numbers and operator to calculate");
	num1=scan.nextDouble();
	num2=scan.nextDouble();
	oper=scan.next().charAt(0);
	System.out.println("The Result "+num1+" "+oper+" " +num2+" = "+calc(num1, num2, oper));
	}
    public static double calc (double num1, double num2, char opr) {
        switch (opr) {
        case '+' : return num1+num2;
        case '-' : return num1-num2;
        case '*' : return num1*num2;
        case '/' : return num1/num2;
        case '^' : return Math.pow (num1, num2);
        default : return 0.0;
        }


	}

}