Calculator

import java.util.Scanner;

class Operations{
    public int SUM(int x,int y){
        int result=x+y;
        return result;
    }
    public int SUB(int x,int y){
        int result=x-y;
        return result;
    }
    public int MUL(int x,int y){
        int result=x*y;
        return result;
    }
    public int DIV(int x,int y){
        int result=x/y;
        return result;
    }
    public void Choice(){
        Scanner input = new Scanner(System.in);
        System.out.println("Enter choice:1,2,3,4: ");
        int choice = input.nextInt();
        switch (choice) {
            case 1 :
            System.out.print("Enter x: ");
            int x = input.nextInt();
            System.out.print("Enter y: ");
            int y = input.nextInt();
            System.out.print("result: "+SUM(x,y));    
                break;
            case 2:
            System.out.print("Enter x: ");
             x = input.nextInt();
            System.out.print("Enter y: ");
             y = input.nextInt();
            System.out.print("result: "+SUB(x,y));
                break;
            case 3:
            System.out.print("Enter x: ");
            x = input.nextInt();
            System.out.print("Enter y: ");
             y = input.nextInt();
             System.out.print("result: "+MUL(x,y));
                break;
            case 4:
            System.out.print("Enter x: ");
            x = input.nextInt();
            System.out.print("Enter y: ");
            y = input.nextInt();
            System.out.print("result: "+DIV(x,y));
                break;
           default:
                System.out.println("Incorrect choice");
                input.close();
    }
}
}

class Calculator{
    public static void main(String[] args) {
        Operations cal=new Operations();
        cal.Choice();
    }
}

Built With

• java