import java.util.*;
class SwitchCase 
{
    public static void main(String[] args) 
    {
        Scanner input=new Scanner(System.in);
        System.out.print("Enter Number1: ");
        int num1=input.nextInt();
        System.out.print("Enter Number2: ");
        int num2=input.nextInt();
        System.out.println("1 Addition");
        System.out.println("2 Subtraction");
        System.out.println("3 Multiplication");
        System.out.println("4 Division");
        System.out.println("5 Exit");

        System.out.print("Enter your choice: ");
        int choice=input.nextInt();
        switch(choice){
         case 1:
             int sum=num1+num2;
             System.out.println("Result is "+sum);
             break;

         case 2:
             int diff=0;
             if(num1>num2){
                 diff=num1-num2;
             }
             else{
                 diff=num2-num1;
             }
             System.out.println("Result is "+diff); 
             break;

         case 3:
             int mul=num1*num2;
             System.out.println("Result is "+mul);
             break;

         case 4:
             int div=0;
             if(num1>num2){
                 div=num1/num2;
             }
             else{
                 div=num2/num1;
             }
             System.out.println("Result is "+div);
             break;

         case 5:
             System.exit(0);
             break;

             default: 
                 System.out.println("Choose correct mathematical operation.");

        }
    }
}