Thread: proper actionPerformed practice?

im trying to learn a lot about good coding practices and i see a lot of different ways people are doing the actionPerformed method...which one is better practice?

button.addActionListener(new ActionListener()  {
public void actionPerformed(ActionEvent e) {}
});

button.addActionListener(this);
public void actionPerformed(ActionEvent e) {
        //all buttons code sorted here
}

The first is adding the ActionListener by creating an anonymous inner class and is the 'better' practice. The second is a common way to demonstrate ActionListeners in a single program element or class, but if the design is used on more complex programs, the programmer will eventually discover the program is a tangled mess of code that is difficult to untangle and maintain. It is advised to separate the business (model), interface (view), and controller logic as much as possible. A common design pattern (or architecture) to accomplish this is known as the Model View Controller, or MVC, pattern.