📄 mydemo1.java
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/* * MyDemo1.java is a 1.4 example that requires no other files. */import javax.swing.JFrame;import javax.swing.JLabel;import java.awt.Font;import java.awt.BorderLayout; public class MyDemo1 { /** * 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("MyDemo1"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Add a label with bold italic font. JLabel label = new JLabel("My Demo"); frame.getContentPane().add(BorderLayout.CENTER, label); if (true) { label.setFont(label.getFont().deriveFont(Font.ITALIC | Font.BOLD)); } else { //another way of doing it, but not as appropriate since //setFont is faster than using HTML. label.setText("<html><i>My Demo</i></html>"); } label.setHorizontalAlignment(JLabel.CENTER); //Display the window, making it a little bigger than it really needs to be. frame.pack(); frame.setSize(frame.getWidth() + 100, frame.getHeight() + 50); 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(); } }); }}⌨️ 快捷键说明
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