?? cump.java
字號:
if (text.getText() != ""){
num1 =Double.parseDouble(text.getText());
temp = "mul";
clickable = false;
}
}
});
button_Mul.setText("*");
button_Mul.setBounds(109, 39, 35, 30);
//除法運算
final Button button_Div = new Button(composite, SWT.NONE);
button_Div.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
if (text.getText() != ""){
num1 =Double.parseDouble(text.getText());
temp = "div";
clickable = false;
}
}
});
button_Div.setText("/");
button_Div.setBounds(109, 6, 35, 30);
//平方根運算
final Button sqrtButton = new Button(composite, SWT.NONE);
sqrtButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
String s = text.getText();
if (s.charAt(0) == '-') {
text.setText("負數(shù)不能開根號");
clickable = false;
} else {
text.setText(Double.toString(java.lang.Math.sqrt(Double.parseDouble(text.getText()))));
}
}
});
sqrtButton.setText("Sqrt");
sqrtButton.setBounds(145, 6, 35, 30);
//取模運算
final Button button_Mod = new Button(composite, SWT.NONE);
button_Mod.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
}
});
button_Mod.setText("%");
button_Mod.setBounds(145, 39, 35, 30);
//等于運算
final Button button_Equal = new Button(composite, SWT.NONE);
button_Equal.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
if (temp != null && text.getText() != ""){
num2 = Double.parseDouble(text.getText());
if (temp == "add"){
text.setText(Double.toString(num1 + num2));
//temp = null;
}else if (temp == "sub"){
text.setText(Double.toString(num1 - num2));
//temp = null;
}else if (temp == "mul"){
text.setText(Double.toString(num1 * num2));
//temp = null;
}else if (temp == "div"){
text.setText(Double.toString(num1 / num2));
//temp = null;
}
clickable = false;
}
}
});
button_Equal.setText("=");
button_Equal.setBounds(145, 72, 35, 63);
//取反運算
final Button button_AddAndSub = new Button(composite, SWT.NONE);
button_AddAndSub.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
boolean isNumber = true;
String s = text.getText();
for (int i = 0; i < s.length(); i++)
if (!(s.charAt(i) >= '0' && s.charAt(i) <= '9'
|| s.charAt(i) == '.' || s.charAt(i) == '-')) {
isNumber = false;
break;
}
if (isNumber == true) {
//如果當前字符串首字母有'-'號,代表現(xiàn)在是個負數(shù),再按下時,則將首符號去掉
if (s.charAt(0) == '-') {
text.setText("");
for (int i = 1; i < s.length(); i++) {
char a = s.charAt(i);
text.setText(text.getText() + a);
}
}
//如果當前字符串第一個字符不是符號，則添加一個符號在首字母處
else
text.setText('-' + s);
}
}
});
button_AddAndSub.setText("+/-");
button_AddAndSub.setBounds(37, 105, 35, 30);
//BackSpace
final Button backButton = new Button(composite_1, SWT.NONE);
backButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
if (text.getText() != "") {
String s = text.getText();
text.setText("");
for (int i = 0; i < s.length() - 1; i++) {
char a = s.charAt(i);
text.setText(text.getText() + a);
}
}
}
});
backButton.setFont(SWTResourceManager.getFont("", 12, SWT.BOLD));
backButton.setText("Backspace");
backButton.setBounds(46, 0, 87, 30);
//CE
final Button ceButton = new Button(composite_1, SWT.NONE);
ceButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
if (text.getText() != ""){
text.setText("");
}
}
});
ceButton.setFont(SWTResourceManager.getFont("", 12, SWT.BOLD));
ceButton.setText("CE");
ceButton.setBounds(134, 0, 46, 30);
//C
final Button cButton = new Button(composite_1, SWT.NONE);
cButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
text.setText("");
num1 = 0;
temp = null;
}
});
cButton.setFont(SWTResourceManager.getFont("", 12, SWT.BOLD));
cButton.setText("C");
cButton.setBounds(181, 0, 44, 30);
//M-Text
text_Memory = new Text(composite_1, SWT.READ_ONLY | SWT.CENTER | SWT.BORDER);
text_Memory.setForeground(SWTResourceManager.getColor(0, 0, 255));
text_Memory.setFont(SWTResourceManager.getFont("", 14, SWT.BOLD));
text_Memory.setBounds(8, 5, 25, 25);
//MC
final Button mcButton = new Button(composite_2, SWT.NONE);
mcButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
memoryd = memoryi = 0;
text_Memory.setText("");
}
});
mcButton.setFont(SWTResourceManager.getFont("Arial", 14, SWT.BOLD));
mcButton.setText("MC");
mcButton.setBounds(0, 6, 40, 30);
//MR
final Button mrButton = new Button(composite_2, SWT.NONE);
mrButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
if (memoryd != 0) {
text.setText(Double.toString(memoryd));
}
if (memoryi != 0) {
text.setText(Integer.toString(memoryi));
}
clickable = false;
}
});
mrButton.setFont(SWTResourceManager.getFont("Arial", 14, SWT.BOLD));
mrButton.setText("MR");
mrButton.setBounds(0, 39, 40, 30);
//MS
final Button mButton_Sub = new Button(composite_2, SWT.NONE);
mButton_Sub.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
if (text.getText() != ""){
boolean isDot = false;
text_Memory.setText("M");
for (int i = 0; i < text.getText().length(); i++){
if ('.' == text.getText().charAt(i)) {
isDot = true;
break;
}
}
//如果是double,則存入memoryd(double存儲器)
if (isDot == true) {
memoryd = Double.parseDouble(text.getText());
memoryi = 0; //保證存儲器中存放最新的值
}
//如果是int,則存入memoryi(int存儲器)
else {
memoryi = Integer.parseInt(text.getText());
memoryd = 0; //保證存儲器中存放最新的值
}
clickable = false;
}
}
});
mButton_Sub.setFont(SWTResourceManager.getFont("Arial", 14, SWT.BOLD));
mButton_Sub.setText("MS");
mButton_Sub.setBounds(0, 72, 40, 30);
//M+
final Button mButton_Add = new Button(composite_2, SWT.NONE);
mButton_Add.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(final SelectionEvent e) {
if (text.getText() != ""){
boolean isDot = false;
for (int i = 0; i < text.getText().length(); i++){
if ('.' == text.getText().charAt(i)) {
isDot = true;
break;
}
}
if (memoryi != 0) { //存儲中是一個int型數(shù)
if (isDot == false) //被加數(shù)是一個int型數(shù)
memoryi += Integer.parseInt(text.getText());
else { //被加數(shù)是一個double型數(shù)，則將int存儲器中數(shù)傳入double存儲器與當前數(shù)相加，int存儲器清零
memoryd = memoryi + Double.parseDouble(text.getText());
memoryi = 0;
}
} else {
memoryd += Double.parseDouble(text.getText());
}
clickable = false;
}
}
});
mButton_Add.setFont(SWTResourceManager.getFont("Arial", 14, SWT.BOLD));
mButton_Add.setText("M+");
mButton_Add.setBounds(0, 105, 40, 30);
shell.layout();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
}
}
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