java 汉诺塔实现自动演示

1、增加计时功能，显示用户完成移动盘子所花费的时间 2、用户可以设置最大和最小盘子的大小 3、用户可以选择播放和暂停背景音乐 4、用户可以设置盘子的数目 5、用户可以设置盘子的颜色以及背景的颜色 6、用户可以将自动移动盘子的文本信息保存到文件 在原有代码上增加，增加的新代码要注释

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class AutoMoveDisc extends JDialog implements ActionListener{     int amountOfDisc=3;     TowerPoint [] pointA,pointB,pointC;     char [] towerName;     Container con;     StringBuffer moveStep;     JTextArea showStep;     JButton bStart,bStop,bContinue,bClose;     Timer time;     int i=0,number=0;     AutoMoveDisc(Container con){         setModal(true);         setTitle("自动演示搬盘子过程");         this.con=con;         moveStep=new StringBuffer();         time=new Timer(1000,this);         time.setInitialDelay(10);         showStep=new JTextArea(10,12);         bStart=new JButton("演示");         bStop=new JButton("暂停");         bContinue=new JButton("继续");         bClose=new JButton("关闭");         bStart.addActionListener(this);         bStop.addActionListener(this);         bContinue.addActionListener(this);         bClose.addActionListener(this);         JPanel south=new JPanel();         south.setLayout(new FlowLayout());         south.add(bStart);         south.add(bStop);         south.add(bContinue);         south.add(bClose);         add(new JScrollPane(showStep),BorderLayout.CENTER);         add(south,BorderLayout.SOUTH);         setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);         towerName=new char[3];         addWindowListener(new WindowAdapter(){                            public void windowClosing(WindowEvent e){                               time.stop();                               setVisible(false);                            }                          });     }     public void setPointA(TowerPoint [] pointA){         this.pointA=pointA;     }     public void setPointB(TowerPoint [] pointB){         this.pointB=pointB;     }     public void setPointC(TowerPoint [] pointC){         this.pointC=pointC;     }     public void setTowerName(char name[]){          if(name[0]==name[1]||name[0]==name[2]||name[1]==name[2]){            towerName[0]='A';            towerName[1]='B';            towerName[2]='C';          }          else             towerName=name;     }     public void setAmountOfDisc(int n){          amountOfDisc=n;     }    public void actionPerformed(ActionEvent e) {       if(e.getSource()==time){             number++;             char cStart,cEnd;             if(i<=moveStep.length()-2){               cStart=moveStep.charAt(i);               cEnd=moveStep.charAt(i+1);               showStep.append("("+number+")从"+cStart+"座搬一个盘子到"+cEnd+"座\n");               autoMoveDisc(cStart,cEnd);             }             i=i+2;             if(i>=moveStep.length()-1){                 time.stop();             }        }       else if(e.getSource()==bStart){            if(moveStep.length()==0){              if(time.isRunning()==false){                  i=0;                  moveStep=new StringBuffer();                  setMoveStep(amountOfDisc,towerName[0],towerName[1],towerName[2]);                  number=0;                  time.start();                 }            }       }       else if(e.getSource()==bStop){            if(time.isRunning()==true)                 time.stop();          }       else if(e.getSource()==bContinue){            if(time.isRunning()==false)                 time.restart();          }       else if(e.getSource()==bClose){            time.stop();            setVisible(false);         }     }    private void setMoveStep(int amountOfDisc,char one,char two,char three){       if(amountOfDisc==1){              moveStep.append(one);              moveStep.append(three);         }       else{              setMoveStep(amountOfDisc-1,one,three,two);              moveStep.append(one);              moveStep.append(three);              setMoveStep(amountOfDisc-1,two,one,three);         }    }    private void autoMoveDisc(char cStart,char cEnd){       Disc disc=null;       if(cStart==towerName[0]){                for(int i=0;i<pointA.length;i++){                   if(pointA[i].isHaveDisc()==true){                       disc=pointA[i].getDiscOnPoint();                       pointA[i].setHaveDisc(false);                            break;                   }                }       }       if(cStart==towerName[1]){                for(int i=0;i<pointB.length;i++){                   if(pointB[i].isHaveDisc()==true){                       disc=pointB[i].getDiscOnPoint();                       pointB[i].setHaveDisc(false);                       break;                   }                }       }       if(cStart==towerName[2]){                for(int i=0;i<pointC.length;i++){                   if(pointC[i].isHaveDisc()==true){                       disc=pointC[i].getDiscOnPoint();                       pointC[i].setHaveDisc(false);                       break;                   }                }       }       TowerPoint endPoint=null;       int i=0;           if(cEnd==towerName[0]){                for(i=0;i<pointA.length;i++){                   if(pointA[i].isHaveDisc()==true){                      if(i>0){                                                                               endPoint=pointA[i-1];                         break;                      }                      else if(i==0)                         break;                   }                }                if(i==pointA.length)                  endPoint=pointA[pointA.length-1];       }       if(cEnd==towerName[1]){                for(i=0;i<pointB.length;i++){                   if(pointB[i].isHaveDisc()==true){                                                      if(i>0){                                                                               endPoint=pointB[i-1];                         break;                      }                      else if(i==0)                         break;                   }                }                if(i==pointB.length)                  endPoint=pointB[pointB.length-1];       }       if(cEnd==towerName[2]){                for(i=0;i<pointC.length;i++){                   if(pointC[i].isHaveDisc()==true){                                                      if(i>0){                                                                               endPoint=pointC[i-1];                         break;                      }                      else if(i==0)                         break;                   }                   }                if(i==pointC.length)                  endPoint=pointC[pointC.length-1];       }       if(endPoint!=null&&disc!=null){              endPoint.putDisc(disc,con);              endPoint.setHaveDisc(true);       }    } }