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| import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.NumberFormat;
import javax.swing.JButton;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JOptionPane;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
public class Fenetre extends JFrame {
private JMenuBar menuBar = new JMenuBar();
private JMenu test1 = new JMenu("Fichier");
private JPanel container = new JPanel();
private JFormattedTextField jtf = new JFormattedTextField(NumberFormat.getIntegerInstance());
private JFormattedTextField jtf2 = new JFormattedTextField(NumberFormat.getIntegerInstance());
private JFormattedTextField jtf3 = new JFormattedTextField(NumberFormat.getIntegerInstance());
private JLabel label = new JLabel("<html><center><i> Veuillez entrer une Equation du second degré ci-dessous :</i><br>"+"<br><br><br></center></html>");
private JLabel labe2 = new JLabel("x² + ");
private JLabel labe3 = new JLabel("x + ");
private JLabel labe4 = new JLabel(" = 0");
private JLabel labe5 = new JLabel("");
private JLabel labe6 = new JLabel("<html><center><br><br><br>Réponse :<br><br>"+"</center></html>");
private JButton b = new JButton ("Calculer");
private JMenuItem item2 = new JMenuItem("Quitter");
public Fenetre(){
this.setTitle("::Equation facile::");
this.setSize(426, 390);
this.setResizable(false);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
item2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0) {
System.exit(0);
}
});
this.test1.add(item2);
this.menuBar.add(test1);
this.setJMenuBar(menuBar);
container.setBackground(Color.black);
container.setLayout(new BorderLayout());
JPanel top = new JPanel();
Font police = new Font("Arial", Font.ITALIC, 14);
jtf.setFont(police);
jtf.setPreferredSize(new Dimension(80, 30));
jtf.setForeground(Color.black);
jtf2.setFont(police);
jtf2.setPreferredSize(new Dimension(80, 30));
jtf2.setForeground(Color.black);
jtf3.setFont(police);
jtf3.setPreferredSize(new Dimension(80, 30));
jtf3.setForeground(Color.black);
b.addActionListener(new BoutonListener());
top.add(label);
top.add(jtf);
top.add(labe2);
top.add(jtf2);
top.add(labe3);
top.add(jtf3);
top.add(labe4);
top.add(b);
top.add(labe5);
top.add(labe6);
this.setUndecorated(false);
this.setContentPane(top);
this.setVisible(true);
}
class BoutonListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
int x = 0;
int y = 0;
int z = 0;
if(jtf.getText() != null && !jtf.getText().equals("")){
x = Integer.valueOf(jtf.getText());
}
if(jtf2.getText() != null && !jtf2.getText().equals("")){
y = Integer.valueOf(jtf2.getText());
}
if(jtf3.getText() != null && !jtf3.getText().equals("")){
z = Integer.valueOf(jtf3.getText());
}
int result = y*y;
result = (result) - 4*(x)*(z);
if(result < 0){
labe5.setText("<html><center><br><br><br>Le delta est négatif, il n'y à alors pas de racine<br><font color=\"#C0C0C0\">_______________________________________________________________________________________________________________________________</font>");
labe6.setText("");
}
else if(result > 0 && (x!= 0) && (y!= 0)){
double racine = Math.sqrt(result);
double result1 = ((y*-1)+ racine) / (2*x);
double result2 = ((y*-1)- racine) / (2*x);
labe5.setText("<html><center><br><br><br>Le deltat est :<br><font color=\"#C0C0C0\">_______________________________________________________________________________________________________________________________</font><br><font color=\"#00669\">"+result+"</font><br>--------------<br><br>Les racines sont :<br><font color=\"#C0C0C0\">_______________________________________________________________________________________________________________________________</font><br><font color=\"#CC0000\">"+result1+"<br> et <br>"+result2+"</font><br>--------------</center></html>");
labe6.setText("");
}
else if(result == 0 && (x!= 0)&& (y!= 0)){
double result3 = (y*-1) / (2*x);
labe5.setText("<html><center><br><br><br>Le deltat est :<br><font color=\"#C0C0C0\">_______________________________________________________________________________________________________________________________</font><br><font color=\"#00669\">"+result+"</font><br>--------------<br><br>La racine est :<br><font color=\"#C0C0C0\">_______________________________________________________________________________________________________________________________</font><br><font color=\"#CC0000\">"+result3+"</font><br>--------------</center></html>");
labe6.setText("");
}
else if((x == 0) && (y!= 0)){
double result3 = (z*-1) / (y);
labe5.setText("<html><center><br><br><br>Equation du premier degré<br><font color=\"#C0C0C0\">_______________________________________________________________________________________________________________________________</font>"+"<br>La racine est :<br><font color=\"#C0C0C0\">_______________________________________________________________________________________________________________________________</font><br><font color=\"#CC0000\">"+result3+"</font><br>--------------</center></html>");
labe6.setText("");
}
else{
JOptionPane.showMessageDialog(null, "Impossible, veuillez rentrer une equation correcte", "Reponse", JOptionPane.INFORMATION_MESSAGE);
}
}
}
} |
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