生产者和消费者问题

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1、importjava.awt.*;importjava.awt.event.*;importjava.util.*;importjavax.swing.*;publicclassPCextendsJFrame{privatestaticintMAX=5;privatefinalJProgressBarjpb=newJProgressBar(SwingConstants.VERTICAL);privatefinalJTextAreajta=newJTextArea();privatefinalJTextFieldtProduce=newJTextField(3);privatefinal

2、JTextFieldtCost=newJTextField(3);privatefinalJTextFieldjtf_produce=newJTextField(3);privatefinalJTextFieldjtf_cost=newJTextField(3);privatefinalJTextFieldjtf_max=newJTextField(3);privatefinalJButtonbProduce=newJButton("生产");privatefinalJButtonbCost=newJButton("消费");privatefinalJButtonbAction=new

3、JButton("自动执行");privateBooleanflag=true;privateIntegermax=0;privatebooleandoProduce(intid){synchronized(max){try{MAX=Integer.parseInt(jtf_max.getText());}catch(Exceptione){MAX=5;jtf_max.setText("5");}if(max

4、Value(max*100/MAX);returntrue;}returnfalse;}}privatebooleandoCost(intid){synchronized(max){try{MAX=Integer.parseInt(jtf_max.getText());}catch(Exceptione){MAX=5;jtf_max.setText("5");}if(max>0){max--;jta.setText("[C"+id+"]消耗了一个产品，现在的缓冲区："+max+"/"+MAX+""+jta.getText());jpb.setValue(max*100/MAX);r

5、eturntrue;}returnfalse;}}{jta.setText("");bProduce.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEventae){doProduce(0);}});bCost.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEventae){doCost(0);}});bAction.addActionListener(newActionListener(){publ

6、icvoidactionPerformed(ActionEventae){if("自动执行".equals(bAction.getText())){bAction.setText("停止执行");flag=true;intn;synchronized(tProduce){try{n=Integer.parseInt(tProduce.getText());}catch(Exceptione){n=3;}tProduce.setText("3");for(inti=0;i

7、Cost){try{n=Integer.parseInt(tCost.getText());}catch(Exceptione){n=3;}tCost.setText("3");}for(inti=0;i