calculator1

package com.kbapartments;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner= new Scanner(System.in);
        Integer int1=0;
        Integer int2=0;
        String stringInt1="";
        String stringInt2="";
        Integer noOfCalculations=0;
        int result=0;
;

        System.out.println("This is a calculator of two integers:\nIt performs addition, " +
                "subtraction,division and multiplication.\n");



        while(noOfCalculations<1000){
                String input= scanner.nextLine();
                String[] parts= input.split("\\+");
                Character operand='+';

            if (input.contains("+")) {
                parts=input.split("\\+");
                operand='+';

                } else if (input.contains("-")) {
                parts=input.split("\\-");
                operand='-';

            } else if (input.contains("*")) {
                parts= input.split("\\*");
                operand='*';

            } else if (input.contains("/")) {
                parts=input.split("\\/");
                operand='/';

            }else {
                // Handle invalid input here, if necessary
                System.out.println("Invalid input: " + input);
                continue; // Skip the rest of the loop for this iteration
            }



            stringInt1=parts[0];
            stringInt2=parts[1];
            int1=Integer.parseInt(stringInt1);
            int2=Integer.parseInt(stringInt2);
            result=0;

            switch (operand){

                case '+':
                    result=int1+int2;
                    break;

                case '-':
                    result=int1-int2;
                    break;

                case '*':
                    result=int1*int2;
                    break;
                case '/':
                    if (int2>0) {
                        result = int1 / int2;
                    } else {
                        result=0;
                        System.out.println("Division by zero no allowed.\n");
                    }
                    break;
                default:
                    System.out.println("Error: Invalid operand.");
                    return;

            }

            System.out.println("result: " + result);
        }



    }
}