滑鼠連點3下觸發mouse listener實作(AWT)

source.addMouseListener(new MouseAdapter() {
private int interval = 300; // ms
private int target = 3; // 連點3下
private int addup = 0; // 已連點了addup下
private Calendar calPriorTime = Calendar.getInstance();

@Override
public void mouseClicked(java.awt.event.MouseEvent e) {
Calendar calNow = Calendar.getInstance();
long curInterval = calNow.getTimeInMillis() - calPriorTime.getTimeInMillis();
if (curInterval > interval) {
// 點第一下(和上一次點的時間相差太久)
addup = 1;
} else {
// 連點(和上一次點的時間相差在interval內)
addup++;
}
if (addup >= target) {
addup = 0;
System.out.println("連點三下已被觸發。");
}
calPriorTime = calNow;
}
});