java swing HelloWorld program

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原创最新推荐文章于 2026-10-08 17:56:57 发布 992 阅读 AI 写同款· GEO 优化 ›

LPC2124定时器实现跑马灯文章目录一、keil 4新建工程一、keil 4新建工程 1、Create New Project，注意，最好添加进一个新建好的文件夹里，keil不会帮你新建。 2、添加设备类型：NXP目录下的LPC2124 3、选择启动文件Startu.s 4、new 一个file，保存命名为.c文件 5、添加进project里，右击，add 选中，添加 6、设置编译输出.hex文件 ... 阅读详情

/*
 * HelloWorldSwing.java is a 1.4 example that
 * requires no other files. 
 */
import javax.swing.*;        

public class HelloWorldSwing {
    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
     */
    private static void createAndShowGUI() {
        //Make sure we have nice window decorations.
        JFrame.setDefaultLookAndFeelDecorated(true);

        //Create and set up the window.
        JFrame frame = new JFrame("HelloWorldSwing");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Add the ubiquitous "Hello World" label.
        JLabel label = new JLabel("Hello World");
        frame.getContentPane().add(label);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}