判断鼠标双击

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  程序代码:

  import java.applet.*;

  import java.awt.*;

  import java.awt.event.*;

  public class dbclick extends Applet implements MouseListener

  {

  boolean isDoubleClick = false;// 是否双击标志

  public void init()

  {

  addMouseListener(this);// 进行鼠标事件监听

  }

  public void paint(Graphics g)

  {

  g.drawString("请单击或双击鼠标", 10,10);

  if(isDoubleClick)

  g.drawString("您双击了鼠标",10,30);

  else

  g.drawString("",10,30);// 清除显示双击信息

  }

  public void mousePressed(MouseEvent e) {}

  public void mouseReleased(MouseEvent e) {}

  public void mouseEntered(MouseEvent e) {}

  public void mouseExited(MouseEvent e) {}

  public void mouseClicked(MouseEvent e)

  {

  isDoubleClick = e.getClickCount() == 2;// 连续击打次数为2,则说明是双击了鼠标

  repaint();

  }

  }

  说明:所谓双击,其实就是判断了连续击打鼠标键的次数,您可以把次数改成3,4,5...试试看:),还有,在以前的JDK中,具体版本不知道,是没有getClickCount()函数的,可以用两次点击鼠标键的时间间隔来判断是否在指定的范围内.其实原理就是这样.

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