窗体吸附在屏幕边缘，窗体吸附屏幕边缘,import java.

窗体吸附在屏幕边缘，窗体吸附屏幕边缘,import java.

import java.awt.*;import java.awt.event.*;import javax.swing.*;public class WindowSnapper extends ComponentAdapter {    private boolean locked = false;    private int snap_distance = 50;    public void componentMoved(ComponentEvent evt) {        if(locked) return;        Dimension size = Toolkit.getDefaultToolkit( ).getScreenSize( );        int nx = evt.getComponent( ).getX( );        int ny = evt.getComponent( ).getY( );        // top        if(ny < 0+snap_distance) {            ny = 0;        }        // left        if(nx < 0+snap_distance) {            nx = 0;        }        // right        if(nx > size.getWidth( ) - evt.getComponent( ).getWidth( ) -                snap_distance) {            nx = (int)size.getWidth( )-evt.getComponent( ).getWidth( );        }        // bottom        if(ny > size.getHeight( ) - evt.getComponent( ).getHeight( ) -                snap_distance) {            ny = (int)size.getHeight( )-evt.getComponent( ).getHeight( );        }        // make sure we don't get into a recursive loop when the        // set location generates more eventslocked = true;        evt.getComponent( ).setLocation(nx,ny);        locked = false;    }       public static void main(String[] args) {           JFrame frame = new JFrame("Hack #33: Window Snapping");           JLabel label = new JLabel(              "Move this window's titlebar to demonstrate screen edge snapping.");             frame.getContentPane( ).add(label);               frame.pack( );             frame.addComponentListener(new WindowSnapper( ));             frame.setVisible(true);       }}//该片段来自于http://byrx.net