Exception Handling using Custom Exception Weight Limit

import java.util.*;
class CheckWeight {
    public void validWeight(double weight) throws InvalidWeight {
        if (weight > 100) {
            //System.out.println(String.format("%.0f is invalid weight", weight));
            throw new InvalidWeight(String.format("%.0f is invalid weight", weight));
        } else {
            System.out.println(String.format("%.0f is the valid weight", weight));
        }
	}

    public static void main(String[] args) {
        CheckWeight checkWeight = new CheckWeight();
        Scanner scanner = new Scanner(System.in);

        System.out.print("Enter weight: ");
        double weight = scanner.nextDouble();

        try {
            checkWeight.validWeight(weight);
        } catch (InvalidWeight e) {
            System.out.println("Exception caught: " + e.getMessage());
        }

        scanner.close();
	}

}
// Define a user-defined exception named InvalidWeight
class InvalidWeight extends Exception {
    public InvalidWeight(String message) {
        super(message);
	}

}