复制代码
- //:Counter2.java
- //Aresponsiveuserinterfacewiththreads
- importjava.awt.*;
- importjava.awt.event.*;
- importjava.applet.*;
- classSeparateSubTaskextendsThread{
- privateintcount=0;
- privateCounter2c2;
- privatebooleanrunFlag=true;
- publicSeparateSubTask(Counter2c2){
- this.c2=c2;
- start();
- }
- publicvoidinvertFlag(){runFlag=!runFlag;}
- publicvoidrun(){
- while(true){
- try{
- sleep(100);
- }catch(InterruptedExceptione){}
- if(runFlag)
- c2.t.setText(Integer.toString(count++));
- }
- }
- }
- publicclassCounter2extendsApplet{
- TextFieldt=newTextField(10);
- privateSeparateSubTasksp=null;
- privateButton
- onOff=newButton("Toggle"),
- start=newButton("Start");
- publicvoidinit(){
- add(t);
- start.addActionListener(newStartL());
- add(start);
- onOff.addActionListener(newOnOffL());
- add(onOff);
- }
- classStartLimplementsActionListener{
- publicvoidactionPerformed(ActionEvente){
- if(sp==null)
- sp=newSeparateSubTask(Counter2.this);
- }
- }
- classOnOffLimplementsActionListener{
- publicvoidactionPerformed(ActionEvente){
- if(sp!=null)
- sp.invertFlag();
- }
- }
- publicstaticvoidmain(String[]args){
- Counter2applet=newCounter2();
- FrameaFrame=newFrame("Counter2");
- aFrame.addWindowListener(
- newWindowAdapter(){
- publicvoidwindowClosing(WindowEvente){
- System.exit(0);
- }
- });
- aFrame.add(applet,BorderLayout.CENTER);
- aFrame.setSize(300,200);
- applet.init();
- applet.start();
- aFrame.setVisible(true);
- }
- }///:~
复制代码
- //:Counter2i.java
- //Counter2usinganinnerclassforthethread
- importjava.awt.*;
- importjava.awt.event.*;
- importjava.applet.*;
- publicclassCounter2iextendsApplet{
- privateclassSeparateSubTaskextendsThread{
- intcount=0;
- booleanrunFlag=true;
- SeparateSubTask(){start();}
- publicvoidrun(){
- while(true){
- try{
- sleep(100);
- }catch(InterruptedExceptione){}
- if(runFlag)
- t.setText(Integer.toString(count++));
- }
- }
- }
- privateSeparateSubTasksp=null;
- privateTextFieldt=newTextField(10);
- privateButton
- onOff=newButton("Toggle"),
- start=newButton("Start");
- publicvoidinit(){
- add(t);
- start.addActionListener(newStartL());
- add(start);
- onOff.addActionListener(newOnOffL());
- add(onOff);
- }
- classStartLimplementsActionListener{
- publicvoidactionPerformed(ActionEvente){
- if(sp==null)
- sp=newSeparateSubTask();
- }
- }
- classOnOffLimplementsActionListener{
- publicvoidactionPerformed(ActionEvente){
- if(sp!=null)
- sp.runFlag=!sp.runFlag;//invertFlag();
- }
- }
- publicstaticvoidmain(String[]args){
- Counter2iapplet=newCounter2i();
- FrameaFrame=newFrame("Counter2i");
- aFrame.addWindowListener(
- newWindowAdapter(){
- publicvoidwindowClosing(WindowEvente){
- System.exit(0);
- }
- });
- aFrame.add(applet,BorderLayout.CENTER);
- aFrame.setSize(300,200);
- applet.init();
- applet.start();
- aFrame.setVisible(true);
- }
- }///:~
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