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import java.util.Scanner;

public class Simple_Calculator {

public static void main(String[] args) {

Scanner sc=new Scanner(System.in);

System.out.println("Enter number 1 : ");

Double num1=sc.nextDouble();

System.out.println("Enter number 2: ");

Double num2=sc.nextDouble();

System.out.println("Enter the Operation");

String op=sc.next();

switch (op){

case "+":

System.out.println("Addition of "+num1+" & "+num2+"is : "+(num1+num2));

break;

case "-":

System.out.println("Substraction of "+num1+" & "+num2+"is : "+(num1-num2));

break;

case "*":

System.out.println("Multiplication of "+num1+" & "+num2+"is : "+(num1*num2));

break;

case "/":

System.out.println("Division of "+num1+" & "+num2+"is : "+(num1/num2));

break;

default:

throw new IllegalStateException("Unexpected value: " + op);

}

}

}