hellojframe.java

来自「教你如何使用ANT来写JAVA脚本,这里边是ANT教程的示例.」· Java 代码 · 共 77 行

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

import javax.swing.WindowConstants;

public class HelloJFrame extends javax.swing.JFrame {
	private JButton jButton1;

	/**
	* Auto-generated main method to display this JFrame
	*/
	public static void main(String[] args) {
		try {
			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
			
		} catch (Exception e) {
			try {
				UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
			} catch (ClassNotFoundException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			} catch (InstantiationException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			} catch (IllegalAccessException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			} catch (UnsupportedLookAndFeelException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}
		}
		HelloJFrame inst = new HelloJFrame();
		inst.setVisible(true);
	}
	
	public HelloJFrame() {
		super();
		initGUI();
	}
	
	private void initGUI() {
		try {
			setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
			FlowLayout thisLayout = new FlowLayout();
			getContentPane().setLayout(thisLayout);
			this.setTitle("Ant Test Frame");
			{
				jButton1 = new JButton();
				getContentPane().add(jButton1);
				jButton1.setText("Hello");
				jButton1.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent evt) {
						jButton1ActionPerformed(evt);
					}
				});
			}
			pack();
			setSize(400, 300);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	private void jButton1ActionPerformed(ActionEvent evt) {
		System.out.println("jButton1.actionPerformed, event=" + evt);
		JOptionPane.showMessageDialog(this, "Hello JFrame!");
	}

}