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http://i.stack.imgur.com/XvHm5.pngGUI凍結在While循環中的Java
當我點擊打開按鈕就應該越過的JTextField開始濫發1分的。 而不是整個GUI凍結，包括關閉按鈕。我使用了一個while循環，當你再次單擊jButton時，它將停止。由於jButton被凍結，我無法停止這個程序。我已經讀過線程和多線程會有所幫助，但所有的教程太複雜了，我不明白。他們說要把循環和GUI放在不同的線程上。我想了解這一點，以解決我正在處理的另一個更復雜的程序。那就是爲什麼我做了一個簡單的例子來展示我的問題。
http://i.stack.imgur.com/tbNAF.png
這是怎樣的節目表演。 （JTextField的甚至沒有更新。如果有人知道的方式來解決這個問題，使用線程與否。 我對這個程序代碼是否爲低於我所問的是。
public class whileLoop extends javax.swing.JFrame {
public whileLoop() {
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jTextField1 = new javax.swing.JTextField();
jToggleButton1 = new javax.swing.JToggleButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jToggleButton1.setText("On");
jToggleButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jToggleButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jToggleButton1)
.addGap(18, 18, 18)
.addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 315, Short.MAX_VALUE)
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jToggleButton1))
.addContainerGap(12, Short.MAX_VALUE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
private void jToggleButton1ActionPerformed(java.awt.event.ActionEvent evt) {
if (jToggleButton1.isSelected()) {
jToggleButton1.setText("Off");
while (jToggleButton1.isSelected()) {
jTextField1.setText(jTextField1.getText() + "1");
}
} else {
jToggleButton1.setText("On");
}
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new whileLoop().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JPanel jPanel1;
private javax.swing.JTextField jTextField1;
private javax.swing.JToggleButton jToggleButton1;
// End of variables declaration
}
的代碼的主要領域是：
private void jToggleButton1ActionPerformed(java.awt.event.ActionEvent evt) {
if (jToggleButton1.isSelected()) {
jToggleButton1.setText("Off");
while (jToggleButton1.isSelected()) {
jTextField1.setText(jTextField1.getText() + "1");
}
} else {
jToggleButton1.setText("On");
}
}