1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
package Interface;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.Font;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class Equation {
private JFrame frame;
private JTextField textFieldA;
private JTextField textFieldB;
private JTextField textFieldC;
private JTextField textFieldDelta;
private JTextField textFieldX1;
private JTextField textFieldX2;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Equation window = new Equation();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public Equation() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 850, 600);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel();
frame.getContentPane().add(panel, BorderLayout.CENTER);
panel.setLayout(null);
JLabel lblNewLabelA = new JLabel("Entrer la valeur de A :");
lblNewLabelA.setBounds(24, 91, 134, 16);
panel.add(lblNewLabelA);
JLabel lblNewLabelB = new JLabel("Entrer la valeur de B :");
lblNewLabelB.setBounds(24, 136, 134, 16);
panel.add(lblNewLabelB);
JLabel lblNewLabelC = new JLabel("Entrer la valeur de C :");
lblNewLabelC.setBounds(24, 183, 134, 16);
panel.add(lblNewLabelC);
JLabel lblNewLabelDelta = new JLabel("Delta =");
lblNewLabelDelta.setBounds(24, 229, 56, 16);
panel.add(lblNewLabelDelta);
JLabel lblNewLabelX1 = new JLabel("X1 =");
lblNewLabelX1.setBounds(24, 258, 56, 16);
panel.add(lblNewLabelX1);
JLabel lblNewLabelX2 = new JLabel("X2 =");
lblNewLabelX2.setBounds(24, 287, 56, 16);
panel.add(lblNewLabelX2);
textFieldA = new JTextField();
textFieldA.setBounds(170, 88, 116, 22);
panel.add(textFieldA);
textFieldA.setColumns(10);
textFieldB = new JTextField();
textFieldB.setBounds(170, 133, 116, 22);
panel.add(textFieldB);
textFieldB.setColumns(10);
textFieldC = new JTextField();
textFieldC.setBounds(170, 180, 116, 22);
panel.add(textFieldC);
textFieldC.setColumns(10);
textFieldDelta = new JTextField();
textFieldDelta.setBounds(105, 226, 116, 22);
panel.add(textFieldDelta);
textFieldDelta.setColumns(10);
textFieldX1 = new JTextField();
textFieldX1.setBounds(105, 255, 116, 22);
panel.add(textFieldX1);
textFieldX1.setColumns(10);
textFieldX2 = new JTextField();
textFieldX2.setBounds(105, 284, 116, 22);
panel.add(textFieldX2);
textFieldX2.setColumns(10);
JButton btnNewButton = new JButton("Calcul");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
double b=0;
double a=0;
double c=0;
double delta = b*b-4*a*c;
if (delta>0) {
double X1 = (-b-Math.sqrt(delta))/(2*a);
double X2 = (-b+Math.sqrt(delta))/(2*a);
Double d=toString(delta);
Double x=toString(X1);
Double y=toString(X2);
textFieldDelta.setText("" + d);
textFieldX1.setText(""+ x);
textFieldX2.setText(""+ y);
}
}
private Double toString(double delta) {
return delta;
}
});
btnNewButton.setFont(new Font("Tahoma", Font.PLAIN, 20));
btnNewButton.setBounds(280, 229, 155, 36);
panel.add(btnNewButton);
}
} |
