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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
| 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 javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class Calculatrice extends JFrame {
private JPanel container = new JPanel();
String[] tab_string = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "0",
".", "=", "C", "+", "-", "*", "/"};
JButton[] tab_button = new JButton[tab_string.length];
private JLabel ecran = new JLabel();
private Dimension dim = new Dimension(50, 40);
private Dimension dim2 = new Dimension(50, 31);
private double chiffre1;
private boolean clicOperateur = false, update = false;
private String operateur = "";
public Calculatrice(){
this.setSize(240, 260);
this.setTitle("Calculette");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
this.setResizable(false);
initComposant();
this.setContentPane(container);
this.setVisible(true);
}
private void initComposant(){
Font police = new Font("Arial", Font.BOLD, 20);
ecran = new JLabel("0");
ecran.setFont(police);
ecran.setHorizontalAlignment(JLabel.RIGHT);
ecran.setPreferredSize(new Dimension(220, 20));
JPanel operateur = new JPanel();
operateur.setPreferredSize(new Dimension(55, 225));
JPanel chiffre = new JPanel();
chiffre.setPreferredSize(new Dimension(165, 225));
JPanel panEcran = new JPanel();
panEcran.setPreferredSize(new Dimension(220, 30));
for(int i = 0; i < tab_string.length; i++){
tab_button[i] = new JButton(tab_string[i]);
tab_button[i].setPreferredSize(dim);
switch(i){
case 11 :
tab_button[i].addActionListener(new EgalListener());
chiffre.add(tab_button[i]);
break;
case 12 :
tab_button[i].setForeground(Color.red);
tab_button[i].addActionListener(new ResetListener());
operateur.add(tab_button[i]);
break;
case 13 :
tab_button[i].addActionListener(new PlusListener());
tab_button[i].setPreferredSize(dim2);
operateur.add(tab_button[i]);
break;
case 14 :
tab_button[i].addActionListener(new MoinsListener());
tab_button[i].setPreferredSize(dim2);
operateur.add(tab_button[i]);
break;
case 15 :
tab_button[i].addActionListener(new MultiListener());
tab_button[i].setPreferredSize(dim2);
operateur.add(tab_button[i]);
break;
case 16 :
tab_button[i].addActionListener(new DivListener());
tab_button[i].setPreferredSize(dim2);
operateur.add(tab_button[i]);
break;
default :
chiffre.add(tab_button[i]);
tab_button[i].addActionListener(new ChiffreListener());
break;
}
}
panEcran.add(ecran);
panEcran.setBorder(BorderFactory.createLineBorder(Color.black));
container.add(panEcran, BorderLayout.NORTH);
container.add(chiffre, BorderLayout.CENTER);
container.add(operateur, BorderLayout.EAST);
}
private void calcul(){
if(operateur.equals("+")){
chiffre1 = chiffre1 +
Double.valueOf(ecran.getText()).doubleValue();
ecran.setText(String.valueOf(chiffre1));
}
if(operateur.equals("-")){
chiffre1 = chiffre1 -
Double.valueOf(ecran.getText()).doubleValue();
ecran.setText(String.valueOf(chiffre1));
}
if(operateur.equals("*")){
chiffre1 = chiffre1 *
Double.valueOf(ecran.getText()).doubleValue();
ecran.setText(String.valueOf(chiffre1));
}
if(operateur.equals("/")){
try{
chiffre1 = chiffre1 /
Double.valueOf(ecran.getText()).doubleValue();
ecran.setText(String.valueOf(chiffre1));
}catch(ArithmeticException e){
ecran.setText("0");
}
}
}
class ChiffreListener implements ActionListener{
public void actionPerformed(ActionEvent e) {
//On affiche le chiffre en plus dans le label
String str = ((JButton)e.getSource()).getText();
if(update){
update = false;
}
else{
if(!ecran.getText().equals("0"))
str = ecran.getText() + str;
}
ecran.setText(str);
}
}
class EgalListener implements ActionListener{
public void actionPerformed(ActionEvent arg0) {
calcul();
update = true;
clicOperateur = false;
}
}
class PlusListener implements ActionListener{
public void actionPerformed(ActionEvent arg0) {
if(clicOperateur){
calcul();
ecran.setText(String.valueOf(chiffre1));
}
else{
chiffre1 = Double.valueOf(ecran.getText()).doubleValue();
clicOperateur = true;
}
operateur = "+";
update = true;
}
}
class MoinsListener implements ActionListener{
public void actionPerformed(ActionEvent arg0) {
if(clicOperateur){
calcul();
ecran.setText(String.valueOf(chiffre1));
}
else{
chiffre1 = Double.valueOf(ecran.getText()).doubleValue();
clicOperateur = true;
}
operateur = "-";
update = true;
}
}
class MultiListener implements ActionListener{
public void actionPerformed(ActionEvent arg0) {
if(clicOperateur){
calcul();
ecran.setText(String.valueOf(chiffre1));
}
else{
chiffre1 = Double.valueOf(ecran.getText()).doubleValue();
clicOperateur = true;
}
operateur = "*";
update = true;
}
}
class DivListener implements ActionListener{
public void actionPerformed(ActionEvent arg0) {
if(clicOperateur){
calcul();
ecran.setText(String.valueOf(chiffre1));
}
else{
chiffre1 = Double.valueOf(ecran.getText()).doubleValue();
clicOperateur = true;
}
operateur = "/";
update = true;
}
}
class ResetListener implements ActionListener{
public void actionPerformed(ActionEvent arg0) {
clicOperateur = false;
update = true;
chiffre1 = 0;
operateur = "";
ecran.setText("");
}
}
} |
Calculette en Java
Partager