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

JButton [ ] td1 = {new JButton("Ok"), new JButton ("Valider"), new JButton("Annuler") };
JButton [ ] td2 = td1;
System.out.println(td1[2]!=td2[1]);

C:UsersantoiDocumentsProgrammingPedro>javac annale2013.java
annale2013.java:6: error: class, interface, or enum expected
        JButton [ ] td1 = {new JButton("Ok"), new JButton ("Valider"), new JButton("Annuler") };
        ^
annale2013.java:7: error: class, interface, or enum expected
        JButton [ ] td2 = td1;
        ^
annale2013.java:8: error: class, interface, or enum expected
        System.out.println(td1[2]!=td2[1]);
        ^
3 errors