Basic Error Handling with throw in Java

In Java, you can manually throw an exception using the throw keyword. This is useful for custom error handling.

Source Code

public void checkAge(int age) {
    if (age < 18) {
        throw new ArithmeticException("Access denied - You must be at least 18 years old.");
    } else {
        System.out.println("Access granted");
    }
}

Use throw to explicitly raise an exception when a specific error condition occurs, providing more control over the flow of your program.