进度条Demo

package threadAndRunnable;

import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JProgressBar;

public class jindutiao extends JFrame {

    // JProgressBar的使用
    private static JProgressBar progress;

    public jindutiao() {
        setTitle("进度条的使用");
        setBounds(100, 100, 300, 78);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        progress = new JProgressBar();
        // 显示进度文本
        progress.setStringPainted(true);
        getContentPane().add(progress, BorderLayout.CENTER);
        final JLabel jl = new JLabel("产品正在升级...");
        getContentPane().add(jl, BorderLayout.NORTH);
        setVisible(true);
    }

    public static void main(String[] args) {
        new jindutiao();
        // 设置进度条为不确定样式
        progress.setIndeterminate(true);
        for (int i = 0; i < 100; i++) {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            progress.setValue(i);
        }
        progress.setIndeterminate(false);
        progress.setString("升级完成!");
    }
}