来看java的线程逝世锁 - 仓酷云

//:Interrupt.java
//Thealternativeapproachtousingstop()
//whenathreadisblocked
importjava.awt.*;
importjava.awt.event.*;
importjava.applet.*;
classBlockedextendsThread{
publicsynchronizedvoidrun(){
try{
wait();//Blocks
}catch(InterruptedExceptione){
System.out.println("InterruptedException");
}
System.out.println("Exitingrun()");
}
}
publicclassInterruptextendsApplet{
privateButton
interrupt=newButton("Interrupt");
privateBlockedblocked=newBlocked();
publicvoidinit(){
add(interrupt);
interrupt.addActionListener(
newActionListener(){
public
voidactionPerformed(ActionEvente){
System.out.println("Buttonpressed");
if(blocked==null)return;
Threadremove=blocked;
blocked=null;//toreleaseit
remove.interrupt();
}
});
blocked.start();
}
publicstaticvoidmain(String[]args){
Interruptapplet=newInterrupt();
FrameaFrame=newFrame("Interrupt");
aFrame.addWindowListener(
newWindowAdapter(){
publicvoidwindowClosing(WindowEvente){
System.exit(0);
}
});
aFrame.add(applet,BorderLayout.CENTER);
aFrame.setSize(200,100);
applet.init();
applet.start();
aFrame.setVisible(true);
}
}///:~
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//:Suspend.java
//Thealternativeapproachtousingsuspend()
//andresume(),whichhavebeendeprecated
//inJava1.2.
importjava.awt.*;
importjava.awt.event.*;
importjava.applet.*;
publicclassSuspendextendsApplet{
privateTextFieldt=newTextField(10);
privateButton
suspend=newButton("Suspend"),
resume=newButton("Resume");
classSuspendableextendsThread{
privateintcount=0;
privatebooleansuspended=false;
publicSuspendable(){start();}
publicvoidfauxSuspend(){
suspended=true;
}
publicsynchronizedvoidfauxResume(){
suspended=false;
notify();
}
publicvoidrun(){
while(true){
try{
sleep(100);
synchronized(this){
while(suspended)
wait();
}
}catch(InterruptedExceptione){}
t.setText(Integer.toString(count++));
}
}
}
privateSuspendabless=newSuspendable();
publicvoidinit(){
add(t);
suspend.addActionListener(
newActionListener(){
public
voidactionPerformed(ActionEvente){
ss.fauxSuspend();
}
});
add(suspend);
resume.addActionListener(
newActionListener(){
public
voidactionPerformed(ActionEvente){
ss.fauxResume();
}
});
add(resume);
}
publicstaticvoidmain(String[]args){
Suspendapplet=newSuspend();
FrameaFrame=newFrame("Suspend");
aFrame.addWindowListener(
newWindowAdapter(){
publicvoidwindowClosing(WindowEvente){
System.exit(0);
}
});
aFrame.add(applet,BorderLayout.CENTER);
aFrame.setSize(300,100);
applet.init();
applet.start();
aFrame.setVisible(true);
}
}///:~
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