在Swing窗体中使用事件处理，多线程的问题 - 黑马程序员技术交流社区

package day3;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.lang.reflect.InvocationTargetException;
import java.util.Vector;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
public class SwingSingleThreadDemo extends JFrame {
public static void main(String[] args) {
try {
EventQueue.invokeAndWait(new Runnable() {// 通过事件队列将窗体显示代码与事件处理代码封装在两个程序中。
@Override
public void run() {
SwingSingleThreadDemo frame = new SwingSingleThreadDemo();
}
});
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private JRadioButton radioButton_1;
private JRadioButton radioButton_2;
private JRadioButton radioButton_3;
private JRadioButton radioButton_4;
private ButtonGroup buttonGroup = new ButtonGroup();
private JPanel groupPane = new JPanel(new GridLayout(4, 1, 0, 0));
private JList list;
private JScrollPane scrollPane = new JScrollPane();
private JPanel buttonPane = new JPanel(new FlowLayout(FlowLayout.CENTER));
private JButton button;
private JPanel panel = new JPanel(new GridLayout(1, 2, 0, 0));
private Vector<String> listData=new Vector<String>();
public SwingSingleThreadDemo() {
super();
setBounds(100, 100, 500, 400);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container container = getContentPane();
container.setLayout(new GridLayout(2, 1, 10, 10));
radioButton_1 = new JRadioButton("单选按钮一");
radioButton_2 = new JRadioButton("单选按钮二");
radioButton_3 = new JRadioButton("单选按钮三");
radioButton_4 = new JRadioButton("单选按钮四");
buttonGroup.add(radioButton_1);
buttonGroup.add(radioButton_2);
buttonGroup.add(radioButton_3);
buttonGroup.add(radioButton_4);
groupPane.add(radioButton_1);
groupPane.add(radioButton_2);
groupPane.add(radioButton_3);
groupPane.add(radioButton_4);
list = new JList();
scrollPane.setViewportView(list);
button = new JButton("添加列表组件");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
do_button_actionPerformed_2(e);
}
});
buttonPane.add(button);
panel.add(scrollPane);
panel.add(groupPane);
container.add(panel);
container.add(buttonPane);
pack();
setVisible(true);
}
//下面启动新线程的两种方式有什么不同？？？？？？？？
protected void do_button_actionPerformed_1(ActionEvent e) {// 匿名线程启动方式。
new Thread() { // 开辟一个新的线程执行费时业务
public void run() {
for (int i = 0; i < 10; i++) {
listData.add("选项"+listData.size());
list.setListData(listData);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}.start(); // 启动业务线程
}
protected void do_button_actionPerformed_2(ActionEvent e) {// 匿名线程启动方式。
new Thread() {
public void run() {
for (int i = 0; i < 10; i++) {
EventQueue.invokeLater(new Runnable(){
public void run(){
listData.add("列表选项" + "i");
list.setListData(listData);
}
});
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}.start();
}
}

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