Java throw Keyword

What is the throw Keyword?

The throw keyword in Java is used to throw an exception manually. Unlike exceptions that are thrown automatically by the Java Virtual Machine (JVM) when an error occurs, using throw allows developers to create and throw exceptions based on specific conditions within their code. This capability is essential for implementing custom error handling logic and enforcing application-specific rules.

When to Use the throw Keyword

• Input Validation: Ensuring that method parameters meet certain criteria before processing.