Esercizio sulla classe anonima:

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class ClasseAnonima {
JFrame f=new JFrame("Es. classe anonima");
JButton b1=new JButton("Leggi");
JTextArea t1=new JTextArea();
public ClasseAnonima(){
f.setVisible(true);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(300,300);
f.add(BorderLayout.CENTER,t1);
f.add(BorderLayout.SOUTH,b1);
b1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
String t2;
t2=t1.getText();
System.out.println("Il testo digitato è: "+t2);
}
});
}
public static void main(String [] Args){
ClasseAnonima c=new ClasseAnonima();
}
}