Is it possible to implement an anonymous class in a programming language?

Yes, in the Java programming language, which is widely used for Android application development, it is possible to implement anonymous classes. An anonymous class is a class without a name, which is declared and instantiated simultaneously, usually to implement an interface or extend a class with method overriding.

Example of an anonymous class in Java:

button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // handle click
    }
});

Here, an anonymous class implementing the OnClickListener interface is created without explicitly declaring a separate class.