JAVA/Calculator.java at main · prathmesh235/JAVA · GitHub

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import java.util.Scanner;

//Conditional statement Home worh Que
public class Calculator {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int  a = sc.nextInt();
        int  b = sc.nextInt();
        int  operator = sc.nextInt();

        switch (operator){

            case 1:System.out.println(a + b);
            break;

            case 2:System.out.println(a * b);
            break;

            case 3:if(b==0){
                    System.out.println("Invalid");
                    }else{
                        System.out.println(a / b);
                    }
            break;

            case 4:if(b==0){
                    System.out.println("Invalid");
                    }else{
                        System.out.println(a % b);
                    }
            break;

            default:System.out.println("Invalid");

        }
    }
}