What happens when the finalize method is called on an object in Java and what resources can it release?

In Java, the finalize() method is called by the garbage collector before an object is removed from memory. This method is intended for releasing unmanaged resources that are not automatically cleaned up, such as:

• Closing file descriptors
• Releasing network connections
• Cleaning up native resources

However, using finalize() is not recommended because its invocation is not guaranteed and can lead to delays in resource release. Modern approaches suggest using try-with-resources or explicit resource management.

Example:

@Override
protected void finalize() throws Throwable {
    try {
        // release resources
    } finally {
        super.finalize();
    }
}