这是我的图形表示的代码,但问题是 lpane 调用一次,但当我再次按下开始时,它不会调用赌场的构造函数,但我检查过控制台程序也可以工作,但 lpane 不会更改卡片... ......
package test;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Test extends javax.swing.JFrame {
public Test() {
initComponents();
start.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent e){
new Casino();
new JLayeredPane();
System.out.println(Casino.p[0].getpHand()[0].getValue());
}
});
}
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
start = new javax.swing.JButton();
lpane = new javax.swing.JLayeredPane();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
start.setText("Start");
javax.swing.GroupLayout jLayeredPane1Layout = new javax.swing.GroupLayout(lpane);
lpane.setLayout(jLayeredPane1Layout);
jLayeredPane1Layout.setHorizontalGroup(
jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 691, Short.MAX_VALUE)
);
jLayeredPane1Layout.setVerticalGroup(
jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 475, Short.MAX_VALUE)
);
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(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(start)
.addContainerGap())
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(lpane, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(114, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(lpane)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(start)
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(19, 19, 19)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(36, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(26, 26, 26)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
pack();
}
public static void main(String args[]) {
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(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Test().setVisible(true);
}
});
}
public static JLayeredPane getLPane(){
return lpane;
}
private static javax.swing.JLayeredPane lpane;
private static javax.swing.JPanel jPanel1;
private static javax.swing.JButton start;
}
最佳答案
退后一步,看看您的 mouseClicked
事件...
public void mouseClicked(MouseEvent e){
new Casino();
new JLayeredPane();
System.out.println(Casino.p[0].getpHand()[0].getValue());
}
您创建 Casino
和 JLayeredPane
的新实例并使用它进行操作,它们甚至没有分配给某种引用...
不要依赖静态
引用,它们是糟糕设计的明显标志......
不要在按钮上使用 MouseListener
,您应该使用 ActionListener
远离表单设计器,说真的,它对你有害。花时间阅读 Creating a GUI With JFC/Swing ,了解如何手工构建 UI 以及生成复杂界面所需的技巧,只有这样您才会了解表单设计器可以为您做什么以及如何使用它。
关于java - 分层 Pane 一次后就不起作用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/21644408/