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| import javax.swing.SwingUtilities;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.Rectangle;
import javax.swing.JButton;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import java.awt.event.KeyEvent;
import javax.swing.DefaultButtonModel;
public class cercleswing extends JFrame {
private static final long serialVersionUID = 1L;
private JPanel jContentPane = null;
private JLabel jLabel = null;
private JLabel jLabel1 = null;
private JButton jButton = null;
private JTextField saisieRayon = null;
private JLabel resultat = null;
private JButton quitter = null;
private JButton jButton1 = null;
/**
* This method initializes jButton
*
* @return javax.swing.JButton
*/
private JButton getJButton() {
if (jButton == null) {
jButton = new JButton();
jButton.setBounds(new Rectangle(44, 91, 91, 29));
jButton.setText("Calculer");
jButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
double rayon = Double.parseDouble(saisieRayon.getText());
double perimetre = 2 * Math.PI * rayon;
resultat.setText(Double.toString(perimetre));
//System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()
}
});
}
return jButton;
}
private void calculperim()
{
double rayon = Double.parseDouble(saisieRayon.getText());
double perimetre = 2 * Math.PI * rayon;
resultat.setText(Double.toString(perimetre));
//return perimetre;
}
/**
* This method initializes saisieRayon
*
* @return javax.swing.JTextField
*/
private JTextField getSaisieRayon() {
if (saisieRayon == null) {
saisieRayon = new JTextField();
saisieRayon.setBounds(new Rectangle(75, 45, 53, 16));
saisieRayon.setHorizontalAlignment(JTextField.CENTER);
saisieRayon.setText("0");
}
return saisieRayon;
}
/**
* This method initializes quitter
*
* @return javax.swing.JButton
*/
private JButton getQuitter() {
if (quitter == null) {
quitter = new JButton();
quitter.setBounds(new Rectangle(166, 91, 77, 28));
quitter.setText("Quitter");
quitter.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
System.exit(0);
//System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()
}
});
}
return quitter;
}
/**
* This method initializes jButton1
*
* @return javax.swing.JButton
*/
private JButton getJButton1() {
if (jButton1 == null) {
DefaultButtonModel defaultButtonModel = new DefaultButtonModel();
jButton1 = new JButton();
jButton1.setBounds(new Rectangle(270, 91, 61, 31));
jButton1.setModel(defaultButtonModel);
jButton1.setText("Ok");
jButton1.setToolTipText("Appuyer ici");
jButton1.requestFocus();
jButton1.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyPressed(java.awt.event.KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_ENTER){
calculperim();
//System.out.println("keyPressed()"); // TODO Auto-generated Event stub keyPressed()
}
}
});
}
return jButton1;
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
SwingUtilities.invokeLater(new Runnable() {
public void run() {
cercleswing thisClass = new cercleswing();
thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
thisClass.setVisible(true);
}
});
}
/**
* This is the default constructor
*/
public cercleswing() {
super();
initialize();
}
/**
* This method initializes this
*
* @return void
*/
private void initialize() {
this.setSize(400, 200);
this.setContentPane(getJContentPane());
this.setTitle("Calculer le perimetre d'un cercle");
this.getRootPane().setDefaultButton(jButton1);
}
/**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane() {
if (jContentPane == null) {
resultat = new JLabel();
resultat.setBounds(new Rectangle(249, 46, 72, 16));
resultat.setHorizontalTextPosition(SwingConstants.CENTER);
resultat.setHorizontalAlignment(SwingConstants.LEFT);
resultat.setText("0");
jLabel1 = new JLabel();
jLabel1.setBounds(new Rectangle(180, 45, 71, 16));
jLabel1.setText("Perimetre :");
jLabel = new JLabel();
jLabel.setBounds(new Rectangle(18, 43, 53, 16));
jLabel.setText("Rayon :");
jContentPane = new JPanel();
jContentPane.setLayout(null);
jContentPane.add(jLabel, null);
jContentPane.add(jLabel1, null);
jContentPane.add(getJButton(), null);
jContentPane.add(getSaisieRayon(), null);
jContentPane.add(resultat, null);
jContentPane.add(getQuitter(), null);
jContentPane.add(getJButton1(), null);
}
return jContentPane;
}
} // @jve:decl-index=0:visual-constraint="17,7" |
