Java 实时用户输入的JFormattedTextField货币格式
这是我的代码:Java 实时用户输入的JFormattedTextField货币格式,java,swing,format,currency,jformattedtextfield,Java,Swing,Format,Currency,Jformattedtextfield,这是我的代码: // create the formatters, default, display, edit NumberFormatter defaultFormatter = new NumberFormatter(new DecimalFormat("#.##")); NumberFormatter displayFormatter = new NumberFormatter(new DecimalFormat("#.##€")); NumberFormatter editFormat
// create the formatters, default, display, edit
NumberFormatter defaultFormatter = new NumberFormatter(new DecimalFormat("#.##"));
NumberFormatter displayFormatter = new NumberFormatter(new DecimalFormat("#.##€"));
NumberFormatter editFormatter = new NumberFormatter(new DecimalFormat("#.##"));
// set their value classes
defaultFormatter.setValueClass(Double.class);
displayFormatter.setValueClass(Double.class);
editFormatter.setValueClass(Double.class);
// create and set the DefaultFormatterFactory
DefaultFormatterFactory valueFactory = new DefaultFormatterFactory(defaultFormatter,displayFormatter,editFormatter);
jFormattedTextField4.setFormatterFactory(valueFactory);
jFormattedTextField1.setFormatterFactory(valueFactory);
当用户输入一个带有点的值时,比如(2.33),FormattedTextField会更改为(2€),这是不应该的,因为用户输入了一个有效的值。
如果用户输入(2,33),则结果为(2,33),并且同样不应为(2,33),因为应为(2.33)
基本上我总是想要格式(X.XX)。
例如:
输入与我想要的:
2-2.00€ /
2,22-2.22€ /
312.54-312.54€ /
432-432.00€ /
2,2-2.20欧元
编辑:一周前这是工作,在我挂载这个项目在另一个窗口的问题出现。现在我有一个葡萄牙语键盘。问题是否可能涉及任何windows或系统属性
编辑:我仍在寻求帮助。有人吗s- 您必须使用,而不是普通的DecimalFormat,确保您的描述中出现错误(
)一周前,这是可行的,在我将此项目装入另一个窗口后,问题出现了……
- 和/或您可以在此处定义受
- 我不会使用
,这对我不好,可以通过使用CurrencyInstance
和带有导航过滤器
/setDot
的行中的字符位置来强制使用(例如moveDot
欧元
=
欧元
)的真实速记名称欧元
- 以下是您需要的简单标准和默认值
import java.awt.*;
import java.awt.font.TextAttribute;
import java.math.*;
import java.text.*;
import java.util.Map;
import javax.swing.*;
import javax.swing.JFormattedTextField.*;
import javax.swing.event.*;
import javax.swing.text.InternationalFormatter;
public class DocumentListenerAdapter {
public DocumentListenerAdapter() {
JFrame frame = new JFrame("AbstractTextField Test");
final JFormattedTextField textField1 = new JFormattedTextField(new Double(10.01));
textField1.setFormatterFactory(new AbstractFormatterFactory() {
@Override
public AbstractFormatter getFormatter(JFormattedTextField tf) {
NumberFormat format = DecimalFormat.getCurrencyInstance();
format.setMinimumFractionDigits(2);
format.setMaximumFractionDigits(2);
format.setRoundingMode(RoundingMode.HALF_UP);
InternationalFormatter formatter = new InternationalFormatter(format);
formatter.setAllowsInvalid(false);
//formatter.setMinimum(0.0);
//formatter.setMaximum(1000.00);
return formatter;
}
});
final Map attributes = (new Font("Serif", Font.BOLD, 16)).getAttributes();
attributes.put(TextAttribute.STRIKETHROUGH, TextAttribute.STRIKETHROUGH_ON);
final JFormattedTextField textField2 = new JFormattedTextField(new Double(10.01));
textField2.setFormatterFactory(new AbstractFormatterFactory() {
@Override
public AbstractFormatter getFormatter(JFormattedTextField tf) {
NumberFormat format = DecimalFormat.getInstance();
format.setMinimumFractionDigits(3);
format.setMaximumFractionDigits(3);
format.setRoundingMode(RoundingMode.HALF_UP);
InternationalFormatter formatter = new InternationalFormatter(format);
formatter.setAllowsInvalid(false);
//formatter.setMinimum(0.0);
//formatter.setMaximum(1000.00);
return formatter;
}
});
textField2.getDocument().addDocumentListener(new DocumentListener() {
@Override
public void changedUpdate(DocumentEvent documentEvent) {
printIt(documentEvent);
}
@Override
public void insertUpdate(DocumentEvent documentEvent) {
printIt(documentEvent);
}
@Override
public void removeUpdate(DocumentEvent documentEvent) {
printIt(documentEvent);
}
private void printIt(DocumentEvent documentEvent) {
DocumentEvent.EventType type = documentEvent.getType();
double t1a1 = (((Number) textField2.getValue()).doubleValue());
if (t1a1 > 1000) {
Runnable doRun = new Runnable() {
@Override
public void run() {
textField2.setFont(new Font(attributes));
textField2.setForeground(Color.red);
}
};
SwingUtilities.invokeLater(doRun);
} else {
Runnable doRun = new Runnable() {
@Override
public void run() {
textField2.setFont(new Font("Serif", Font.BOLD, 16));
textField2.setForeground(Color.black);
}
};
SwingUtilities.invokeLater(doRun);
}
}
});
//https://stackoverflow.com/a/20008786/714968
JFormattedTextField jftf2 = new JFormattedTextField();
final InternationalFormatter fmt = new InternationalFormatter(
new MessageFormat("{0,number,000}-{1,number,0000}"));
jftf2.setFormatterFactory(new JFormattedTextField.AbstractFormatterFactory() {
@Override
public JFormattedTextField.AbstractFormatter getFormatter(JFormattedTextField tf) {
return fmt;
}
});
jftf2.setValue(new Object[]{111, 1234});
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(textField1, BorderLayout.NORTH);
frame.add(textField2, BorderLayout.CENTER);
frame.add(jftf2, BorderLayout.SOUTH);
frame.setVisible(true);
frame.pack();
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
DocumentListenerAdapter main = new DocumentListenerAdapter();
}
});
}
}