import java.util.Scanner;

public class Main {
public static void main(String[] args) {
boolean is_finished = true;

while(is_finished){
System.out.println("enter the operator you want to use: (+),(-),(*),(/) ");

Scanner input= new Scanner(System.in);

String operator= input.next();

System.out.println("now enter two numbers you want to operate");
int number1,number2;

number1=input.nextInt();
number2=input.nextInt();
double result=19;
if(operator.equals("+")){
result =number1 + number2;
System.out.print("the result is: ");
System.out.println(result);
is_finished=false;
}else if(operator.equals("-")){
result = number1 - number2;
System.out.print("the result is: ");
System.out.println(result);
is_finished=false;
}else if(operator.equals("*")){
result= number1 * number2;
System.out.print("the result is: ");
System.out.println(result);
is_finished=false;
}else if(operator.equals("/")){
result= number1/number2;
System.out.print("the result is: ");
System.out.println(result);
is_finished=false;
}else{
System.out.println("invalid operator");
is_finished=false;
}

}

}
}