swing线程模式问题

Question

先贴代码：import java.awt.FlowLayout;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;public class TestSwing extends JFrame { private JButton btn;
private JProgressBar bar; /**
 * @param args
 */
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
TestSwing thisClass = new TestSwing();
thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
thisClass.setVisible(true);
}
});
} /**
 * This is the default constructor
 */
public TestSwing() {
super();
this.setSize(200, 100);
JPanel panel = new JPanel();
panel.setLayout(new FlowLayout());
btn = new JButton("haha");
btn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
             bar.setVisible(true);
try {
                    SwingUtilities.invokeLater(new Thread() {
                        public void run() {
                            try {
                                Thread.sleep(2000);
                            } catch (InterruptedException e1) {
                                e1.printStackTrace();
                            }
                        }
                    });
                } catch (Exception e1) {
                    e1.printStackTrace();
                }
                //在这里关闭窗口
}
});
bar = new JProgressBar();
bar.setIndeterminate(true);
bar.setVisible(false);
panel.add(btn);
panel.add(bar);
this.setContentPane(panel);
}}我希望一点击按钮 进度条就显示而且中间的方块来回移动 但是目前是2秒后才会来回移动 而且我希望2秒后整个窗口关闭（不是System.exit(0);） 望亲们帮忙，多谢了！

Answer 1

说实话。。懂swing 的真不多， 帮你顶一下吧

Answer 2

import java.awt.FlowLayout;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;public class TestSwing extends JFrame {    private JButton btn;
    private JProgressBar bar;    /**
     * @param args
     */
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                TestSwing thisClass = new TestSwing();
                thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                thisClass.setVisible(true);
            }
        });
    }    /**
     * This is the default constructor
     */
    public TestSwing() {
        super();
        this.setSize(200, 100);
        JPanel panel = new JPanel();
        panel.setLayout(new FlowLayout());
        btn = new JButton("haha");
        btn.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent e) {
               bar.setVisible(true);
                    new Thread() {
                        public void run() {
                            try {
                                Thread.sleep(2000);
                            } catch (InterruptedException e1) {
                                e1.printStackTrace();
                            }
                        }
                    }.start();
                
                //在这里关闭窗口
            }
            
        });
        bar = new JProgressBar();
        bar.setIndeterminate(true);
        bar.setVisible(false);
        panel.add(btn);
        panel.add(bar);
        this.setContentPane(panel);
    }}这样可以立即动，但是不用System.exit关闭不会……

Answer 3

 btn.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent e) {
                bar.setVisible(true);
                try {
                   (new Thread() {
                        public void run() {
                            try {
                                Thread.sleep(2000);
                            } catch (InterruptedException e1) {
                                e1.printStackTrace();
                            }
                            
                            Test.this.setVisible(false);
                        }
                    }).start();
                } catch (Exception e1) {
                    e1.printStackTrace();
                }
            }
        });