Basic calculator testcase0 only failed other 1,2,3 passed , please help

#1

import java.util.*;
public class Main {
public static void main(String args[]) {
Scanner sc1 = new Scanner(System.in);

      do {
        char operation = sc1.next().charAt(0);
        if (operation == 'x' || operation == 'X') {
            break;
        } else if (operation != '+' && operation != '-' && operation != '*' && operation != '/' && operation != '%') {
            System.out.println("Invalid operation. Try again.");
        } else {
            long n1 = sc1.nextInt();
            long n2 = sc1.nextInt();
            if (n1 > 0 && n2 > 0 && n1 <= 1000000000 && n2 <= 1000000000) {
                long ans = 0;
                if (operation == '+') {
                    ans = n1 + n2;
                    System.out.println(ans);
                } else if (operation == '*') {
                    ans = n1 * n2;
                    System.out.println(ans);
                } else if (operation == '-') {
                    ans = n1 - n2;
                    System.out.println(ans);
                } else if (operation == '/') {
                    if (n1 > n2) {
                        ans = n1 / n2;
                        System.out.println(ans);
                    }
                } else if (operation == '%') {
                    ans = n1 % n2;
                    System.out.println(ans);
                } else {
                    System.out.println("Invalid operation. Try again.");
                }
            }
        }
    } while (true);
}

}

#2

can someone please help

#3

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#5

Hi where you clear the doubts , I think you forget to press enter

#6

Hey @vivek4988_7c34775e05f479ae You code is failing test case
+
1
2

1
2
*
1
2
.
/
1
2
x
Expected output =
3
-1
2
Invalid operation. Try again.
0
Your Output :
3
-1
2
Invalid operation. Try again.
//Zero is missing

#7

oops thanks , I removed division condition if n1 > n2 and works thanks

#8

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