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import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class Exa extends JFrame {
// les JSliders sont pour la suite de l'exercices
// private JSlider js = new JSlider(JSlider.VERTICAL, 0, 255, 0);
private JTextField jtfrouge;
private JTextField jtfvert;
private JTextField jtfbleu;
private JButton btAnnuler;
public Exa() {
JPanel p = new JPanel();
Contenu contenu = new Contenu();
p.add(contenu);
getContentPane().add(p);
setSize(600, 200);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
}
class Contenu extends JPanel implements ActionListener {
public Contenu() {
jtfrouge = new JTextField("0", 4);
jtfrouge.setBackground(Color.RED);
jtfrouge.setHorizontalAlignment(JTextField.CENTER);
add(jtfrouge);
jtfvert = new JTextField("0", 4);
jtfvert.setBackground(Color.green);
jtfvert.setHorizontalAlignment(JTextField.CENTER);
add(jtfvert);
jtfbleu = new JTextField("0", 4);
jtfbleu.setBackground(Color.blue);
jtfbleu.setHorizontalAlignment(JTextField.CENTER);
add(jtfbleu);
btAnnuler = new JButton("Annuler");
btAnnuler.addActionListener(this);
add(btAnnuler);
this.setBackground(new Color(0, 0, 0));
}
public void actionPerformed(ActionEvent e) {
if (e.getSource().equals(btAnnuler)) {
jtfrouge.setText("0");
jtfvert.setText("0");
jtfbleu.setText("0");
this.setBackground(new Color(0, 0, 0));
} else {
int red = Integer.parseInt(jtfrouge.getText());
int green = Integer.parseInt(jtfvert.getText());
int blue = Integer.parseInt(jtfbleu.getText());
this.setBackground(new Color(red, green, blue));
}
}
}
} |
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