如何解决在每个文本框值的更改事件中自动在摄氏、华氏和开尔文之间转换？
我需要一些帮助来编写一个简单的 Java GUI 程序（用于自学和练习），用于在摄氏、华氏和开尔文之间转换温度单位。
图片：
请求：每当我在任何文本框中写入一个数字值（即 123 摄氏度）时，我都希望该值在所有其他文本框中自动转换，而无需使用按钮。
import javax.swing.JFrame;
/*
* To change this license header,choose License Headers in Project Properties.
* To change this template file,choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author mohammedh
*/
public class NewJFrame extends javax.swing.JFrame {
/**
* Creates new form NewJFrame
*/
public NewJFrame() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jClear = new javax.swing.JButton();
jExit = new javax.swing.JButton();
jC = new javax.swing.JTextField();
jF = new javax.swing.JTextField();
jK = new javax.swing.JTextField();
setDefaultCloSEOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Temperature Converter");
jLabel1.setFont(new java.awt.Font("Tahoma",1,11)); // NOI18N
jLabel1.setText("Celsius");
jLabel2.setFont(new java.awt.Font("Tahoma",11)); // NOI18N
jLabel2.setText("Fahrenheit");
jLabel3.setFont(new java.awt.Font("Tahoma",11)); // NOI18N
jLabel3.setText("Kelvin");
jClear.setText("Clear");
jClear.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jClearactionPerformed(evt);
}
});
jExit.setText("Exit");
jExit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jExitactionPerformed(evt);
}
});
jC.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jCActionPerformed(evt);
}
});
jF.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jFActionPerformed(evt);
}
});
jK.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jKActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(89,89,89)
.addComponent(jClear)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED,javax.swing.GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE)
.addComponent(jExit))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3)
.addComponent(jLabel2)
.addComponent(jLabel1))
.addGap(28,28,28)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,false)
.addComponent(jF,200,Short.MAX_VALUE)
.addComponent(jK)
.addComponent(jC))
.addGap(0,Short.MAX_VALUE)))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(jC,javax.swing.GroupLayout.PREFERRED_SIZE,javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18,18,18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(jF,18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(jK,18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jClear)
.addComponent(jExit))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jCActionPerformed(java.awt.event.ActionEvent evt) {
}
private void jExitactionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
}
private void jKActionPerformed(java.awt.event.ActionEvent evt) {
// Todo add your handling code here:
}
private void jClearactionPerformed(java.awt.event.ActionEvent evt) {
jC.setText(null);
jK.setText(null);
jF.setText(null);
}
private void jFActionPerformed(java.awt.event.ActionEvent evt) {
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available,stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE,null,ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE,ex);
} catch (illegalaccessexception ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE,ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(NewJFrame.class.getName()).log(java.util.logging.Level.SEVERE,ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokelater(new Runnable() {
public void run() {
new NewJFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify
public javax.swing.JTextField jC;
public javax.swing.JButton jClear;
public javax.swing.JButton jExit;
public javax.swing.JTextField jF;
public javax.swing.JTextField jK;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
// End of variables declaration
}
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