import java.awt.*;
import java.awt.event.*;
import javax.swing.*; public class CenteredFrameTest
{
public static void main(String[] args)
{
CenteredFrame frame = new CenteredFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();
}
} class CenteredFrame extends JFrame
{
public CenteredFrame()
{
// get screen dimensions Toolkit kit = Toolkit.getDefaultToolkit();
Dimension screenSize = kit.getScreenSize();
int screenHeight = screenSize.height;
int screenWidth = screenSize.width; // center frame in screen setSize(screenWidth / 2, screenHeight / 2);
setLocation(screenWidth / 4, screenHeight / 4);
}
}摘于Core Java 卷1
import java.awt.event.*;
import javax.swing.*; public class CenteredFrameTest
{
public static void main(String[] args)
{
CenteredFrame frame = new CenteredFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();
}
} class CenteredFrame extends JFrame
{
public CenteredFrame()
{
// get screen dimensions Toolkit kit = Toolkit.getDefaultToolkit();
Dimension screenSize = kit.getScreenSize();
int screenHeight = screenSize.height;
int screenWidth = screenSize.width; // center frame in screen setSize(screenWidth / 2, screenHeight / 2);
setLocation(screenWidth / 4, screenHeight / 4);
}
}摘于Core Java 卷1
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