java编写有窗口界面应用程序 求代码
发布网友
发布时间:2022-06-03 05:49
我来回答
共1个回答
热心网友
时间:2023-10-12 18:23
package image;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class PanelRunner extends JFrame
{
private static final long serialVersionUID = 1L;
private static void initPanels ( JFrame pr )
{
for ( int i = 0; i < 5; i++ )
{
JPanel panel = new JPanel ();
switch (i)
{
case 0:
panel.setBackground (Color.RED);
panel.setPreferredSize (new Dimension (200, 100));
pr.add (panel, BorderLayout.NORTH);
break;
case 1:
panel.setBackground (Color.YELLOW);
panel.setPreferredSize (new Dimension (200, 300));
pr.add (panel, BorderLayout.EAST);
break;
case 2:
panel.setBackground (Color.ORANGE);
panel.setPreferredSize (new Dimension (200, 100));
pr.add (panel, BorderLayout.SOUTH);
break;
case 3:
panel.setBackground (Color.WHITE);
panel.setPreferredSize (new Dimension (200, 300));
pr.add (panel, BorderLayout.WEST);
break;
case 4:
pr.add (panel, BorderLayout.CENTER);
panel.setPreferredSize (new Dimension (200, 100));
panel.setLayout (new GridLayout (1, 2));
for ( int j = 0; j < 2; j++ )
{
JPanel subPanel = new JPanel ();
subPanel.setPreferredSize (new Dimension (200, 100));
Color color = j == 0 ? Color.BLUE : Color.GREEN;
subPanel.setBackground (color);
panel.add (subPanel);
}
break;
default:
break;
}
}
}
private static void initFrame ( JFrame pr )
{
pr.setLayout (new BorderLayout ());
pr.setSize (600, 300);
pr.setLocationRelativeTo (null);
pr.setResizable (false);
pr.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
}
public static void main ( String[] args )
{
SwingUtilities.invokeLater (new Runnable ()
{
@Override
public void run ()
{
PanelRunner pr = new PanelRunner ();
initFrame (pr);
initPanels (pr);
pr.setVisible (true);
}
});
}
}