JProgressBar的问题!

Question

参考http://java.sun.com/docs/books/tutorial/uiswing/components/progress.html#bars

Answer 1

这样做行不行：
//先用按钮触发事件
JButton start=new JButton("start");
JProgressBar ProgBar=new JProgressBar(0,100);
ActionListener I=new ActionListener(){
                                public void actionPerformed(ActionEvent e) { 
                                        if(timer == null) { 
                                            timer = new javax.swing.Timer(0, Begin()); //与JProgressBar关联的事件
                                            timer.start(); }
                                }
                                };
start.addActionListener(I);//然后在JProgressBar相应的事件中加入用户需要的事件处理
 public ActionListener Begin()
            {
                    AbstractAction al=new AbstractAction(){
                
                                    public void actionPerformed (ActionEvent e) 
                                    { 
                                        if(JPrcB.getValue() < JPrcB.getMaximum()) 
                                        {JPrcB.setValue(JPrcB.getValue() + 1);
                                        number++;
                    }
                                    } 
                    };
               return al;
            }

Answer 2

这样做行不行：
//先用按钮触发事件
JButton start=new JButton("start");
JProgressBar ProgBar=new JProgressBar(0,100);
ActionListener I=new ActionListener(){
                                public void actionPerformed(ActionEvent e) { 
                                        if(timer == null) { 
                                            timer = new javax.swing.Timer(0, Begin()); //与JProgressBar关联的事件
                                            timer.start(); }
                                }
                                };
start.addActionListener(I);//然后在JProgressBar相应的事件中加入用户需要的事件处理
 public ActionListener Begin()
            {
                    AbstractAction actAb=new AbstractAction(){
                
                                    public void actionPerformed (ActionEvent e) 
                                    { 
                                        if(ProgBar.getValue() <           ProgBar.getMaximum()) 
                                        {ProgBar.setValue(ProgBar.getValue() + 1);
                                        /***************************/
                                        //what are you want do  
                                        /***************************/                                           }
                                    } 
                    };
               return actAb;
            }