Challenge: Age Checker

Lab Java Intermediate 20 points

Create a checked exception InvalidAgeException. Write static void checkAge(int age) throws InvalidAgeException that throws it with the message Age must be 0-120 when the age is outside 0 to 120.

Read n ages. For each, print OK <age> or Error: Age must be 0-120.

Input

First n, then n whole numbers.

Output

One line per age.

Example

Input

Output

OK 25
Error: Age must be 0-120
Error: Age must be 0-120

Sample input available Sample output available

Editor

Java

Hints

class InvalidAgeException extends Exception, with a constructor calling super(message).

The method header needs throws InvalidAgeException.

Solution explanation

Because the exception is checked, Java makes sure every caller of checkAge deals with it.

Show solution

import java.util.Scanner;

class InvalidAgeException extends Exception {
    InvalidAgeException(String message) {
        super(message);
    }
}

public class Main {
    static void checkAge(int age) throws InvalidAgeException {
        if (age < 0 || age > 120) {
            throw new InvalidAgeException("Age must be 0-120");
        }
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        for (int i = 0; i < n; i++) {
            int age = sc.nextInt();
            try {
                checkAge(age);
                System.out.println("OK " + age);
            } catch (InvalidAgeException e) {
                System.out.println("Error: " + e.getMessage());
            }
        }
    }
}

Output

Answer