?? ticker.java
字號(hào):
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintStream;
/**
**實(shí)現(xiàn)線程
*/
public class Ticker extends Thread{
ActionListener al;
private boolean isTicking;
Thread t;
int delay;
public Ticker(int i, ActionListener actionlistener){
al = actionlistener;
delay = i;
t = new Thread(this);
t.start();
isTicking = false;
}
public Ticker(int i){
delay = i;
t = new Thread(this);
t.start();
isTicking = false;
}
public void addActionListener(ActionListener actionlistener){
if(al == null)
al = actionlistener;
else
System.out.println("WARNING: ActionListener already added to Ticker.");
}
public boolean isRunning(){
return isTicking;
}
public void start(){
isTicking = true;
}
private void fireActionPerformed(){
if(al == null || !isTicking){
return;
}
else{
ActionEvent actionevent = new ActionEvent(this, 0, null);
al.actionPerformed(actionevent);
return;
}
}
public void run(){
do{
fireActionPerformed();
try{
Thread.sleep(delay);
}
catch(InterruptedException interruptedexception){
System.out.println("WARNING: Ticker thread interrupted.");
}
} while(true);
}
}
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