import javax.swing.*; import java.awt.event.*; import java.awt.*;
class JInternalFrame1 extends JFrame implements ActionListener{ JDesktopPane desktopPane; int count = 1; public JInternalFrame1() { super("JInternalFrame1"); Container contentPane = this.getContentPane(); contentPane.setLayout(new BorderLayout()); JButton b = new JButton("Create New Internal Frames"); b.addActionListener(this);//当用户按下按钮时,将运行actionPerformed()中的程序 contentPane.add(b, BorderLayout.SOUTH); /*建立一个新的JDesktopPane并加入于contentPane中 */ desktopPane = new JDesktopPane(); contentPane.add(desktopPane);
setSize(350, 350); show(); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); } /*产生一个可关闭、可改变大小、具有标题、可最大化与最小化的Internal Frame. */ public void actionPerformed(ActionEvent e) { JInternalFrame internalFrame = new JInternalFrame( "Internal Frame "+(count++), true, true, true, true);
internalFrame.setLocation( 20,20); internalFrame.setSize(200,200); internalFrame.setVisible(true); //取得JInternalFrame的Content Pane,用以加入新的组件。
Container icontentPane = internalFrame.getContentPane(); JTextArea textArea = new JTextArea(); JButton b = new JButton("Internal Frame Button"); /*将JTextArea与JButton对象加入JInternalFrame中。由此呆知,JInteranlFrame加入组件 *的方式与JFrame是一模一样。 */ icontentPane.add(textArea,"Center"); icontentPane.add(b,"South"); //将JInternalFrame加入JDesktopPane中,如此一来,即使产生很多JInternalFrame,JDesktopPane也 //能将它们之间的关系管理得相当良好。 desktopPane.add(internalFrame); try { internalFrame.setSelected(true); } catch (java.beans.PropertyVetoException ex) { System.out.println("Exception while selecting"); } }
public static void main(String[] args) { new JInternalFrame1(); } }
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