Java: 除了Inner Class之外的两种nested Class

 Java: 除了Inner Class之外的两种nested Class
Anonymous and Static nested Class.

package  practice;

public   class  StaticNestedClass  ... {
    static class Inner...{
        public void sayIt()...{
            System.out.print("method in static nested class.");
        }
    }
}

package  practice;

public   class  StaticNestedClassTest  ... {
    public static void main(String[] args)...{
        StaticNestedClass one = new StaticNestedClass();
        //one.Inner
        StaticNestedClass.Inner two = new StaticNestedClass.Inner();
        two.sayIt();
    }
}

package  practice;

import  javax.swing. * ;
import  java.awt.event. * ;

public   class  AnonymousNestedClass  ... {
    public static void main(String[] args)...{
        new AnonymousNestedClass().go();
    }
    private void go()...{
        JFrame frame = new JFrame();
        JButton button = new JButton("hehe");
        button.addActionListener(new ActionListener()...{
            public void actionPerformed(ActionEvent e)...{
                System.out.println("AnonymouseNestedClass");
            }
        });
        frame.getContentPane().add(button);
        frame.setSize(300,300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }
}