What are the best practices for using anonymous classes in Java?

What are the best practices for using anonymous classes in Java?

When using anonymous classes in Java, it's best to keep them simple and focused on a single task. Avoid complex logic.

Can you give me an example of a simple anonymous class?

Sure! Here's a simple example:

Runnable runnable = new Runnable() {
    public void run() {
        System.out.println("Running in a thread!");
    }
};

Are there any performance considerations I should be aware of?

Yes, anonymous classes can lead to increased memory usage due to the creation of additional classes. Use them judiciously.

When should I prefer lambda expressions over anonymous classes?

Prefer lambda expressions when you're using functional interfaces, as they are more concise and improve readability.