java gui编程：swing创建窗体和进度条代码示例

短命女 2023-10-04 13:44 10阅读 0赞

package com.zxl;
    
    import javax.swing.*;
    import java.awt.*;
    import javax.swing.event.ChangeEvent;
    import javax.swing.event.ChangeListener;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    
    /**
     * @Description: //TODO 第一个swing程序
     * @Author: zhangxueliang
     * @Create: 2021-05-17 10:43
     * @Version: 1.0
     **/
    public class SwingDemo1 {
    
        private static final int MIN_PROGRESS = 0;//进度条的最小值
        private static final int MAX_PROGRESS = 100;//进度条的最大值
        private static int currentProgress = MIN_PROGRESS;//进度条的当前进度值
    
        public static void main(String[] args) {
            //创建两个窗口
            //createWindow();
            //创建进度条
            progress();
        }
    
        /**
         * //TODO 创建进度条
         * @Description:  
         * @Create: 2021/5/17 14:00
         * @Author: zhangxueliang
         * @Param: 
         * @Return: 
         */
        private static void progress() {
            JFrame jf = new JFrame("测试窗口");
            jf.setSize(250, 250);
            jf.setLocationRelativeTo(null);
            jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
            //创建面板
            JPanel panel = new JPanel();
            // 创建一个进度条
            final JProgressBar progressBar = new JProgressBar();
            // 设置进度的 最小值 和 最大值
            progressBar.setMinimum(MIN_PROGRESS);
            progressBar.setMaximum(MAX_PROGRESS);
            // 设置当前进度值
            progressBar.setValue(currentProgress);
            // 绘制百分比文本（进度条中间显示的百分数）
            progressBar.setStringPainted(true);
            // 添加进度改变通知
            progressBar.addChangeListener(new ChangeListener() {
                @Override
                public void stateChanged(ChangeEvent e) {
                    System.out.println("当前进度值: " + progressBar.getValue() + "; " + "进度百分比: " + progressBar.getPercentComplete());
                }
            });
            // 添加到内容面板
            panel.add(progressBar);
            jf.setContentPane(panel);
            jf.setVisible(true);
            // 模拟延时操作进度, 每隔 0.5 秒更新进度
            new Timer(500, new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    currentProgress++;
                    if (currentProgress > MAX_PROGRESS) {
                        currentProgress = MIN_PROGRESS;
                    }
                    progressBar.setValue(currentProgress);
                }
            }).start();
        }
    
        /**
         * //TODO 创建窗口
         * @Description:  
         * @Create: 2021/5/17 14:00
         * @Author: zhangxueliang
         * @Param: 
         * @Return: 
         */
        private static void createWindow() {
            //生成窗口
            JFrame windows1=new JFrame("窗口1");
            JFrame windows2=new JFrame("窗口2");
            Container container1=windows1.getContentPane();//获得这个窗口的内容面板
            container1.setBackground(Color.blue);//设置背景颜色
            windows1.setBounds(60,100,188,108);//设置位置大小
            windows2.setBounds(260,100,188,108);
            windows1.setVisible(true);//可视性设置
            windows1.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);//设置按x后的操作.[这个只是关闭那个窗口]
            windows2.setVisible(true);
            windows2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置按x后的操作.[这个是关闭整个程序,将会关闭所有窗口]
        }
    
    }

进度条结果演示：

![20210517140300316.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70][]

窗口结果演示：

![20210517140507746.png][]

[20210517140300316.png]: https://img-blog.csdnimg.cn/20210517140300316.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20210517140314788.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk=,size_16,color_FFFFFF,t_70
[20210517140507746.png]: https://img-blog.csdnimg.cn/20210517140507746.png