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程序代碼:
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class dbclick extends Applet implements MouseListener
{
boolean isDoubleClick = false; // 是否雙擊標(biāo)志
public void init()
{
addMouseListener(this); // 進(jìn)行鼠標(biāo)事件監(jiān)聽
}
public void paint(Graphics g)
{
g.drawString("請單擊或雙擊鼠標(biāo)", 10,10);
if(isDoubleClick)
g.drawString("您雙擊了鼠標(biāo)",10,30);
else
g.drawString(" ",10,30); // 清除顯示雙擊信息
}
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; // 連續(xù)擊打次數(shù)為2,則說明是雙擊了鼠標(biāo)
repaint();
}
}
說明:所謂雙擊,其實(shí)就是判斷了連續(xù)擊打鼠標(biāo)鍵的次數(shù),您可以把次數(shù)改成3,4,5...試試看:),還有,在以前的JDK中,具體版本不知道,是沒有g(shù)etClickCount()函數(shù)的,可以用兩次點(diǎn)擊鼠標(biāo)鍵的時(shí)間間隔來判斷是否在指定的范圍內(nèi).其實(shí)原理就是這樣.
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