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| //Fenetre.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class fenetre extends JFrame implements FocusListener{
private JTextField t = new JTextField(10);
public fenetre()
{
Container c = getContentPane();
c.setLayout(new FlowLayout());
c.add(t);
setTitle("Ma fenetre");
setSize(400,400);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
t.addFocusListener(this);
setVisible(true);
}
public void focusGained(FocusEvent e) {
t.setText("");
}
public void focusLost(FocusEvent e) {
t.setForeground(Color.gray.brighter());
t.setText("Recherche");
}
} |
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