帮忙看一下我的applet代码

接上public void paint(Graphics g){
      valcool = Double.parseDouble(textcool.getText().trim());
      valtemp = Double.parseDouble(texttemp.getText().trim());
      valn = Double.parseDouble(textnoise.getText().trim());
      valve = Double.parseDouble(textfm.getText().trim());
      vale = Double.parseDouble(texte.getText().trim());
      valec = Double.parseDouble(textec.getText().trim());
   Ke=6/vale;
   Ket=6/valec;
   Ku=valve/7;
   valhot+=valu*Ku;
   textcool.setText(String.valueOf(valcool));
   texttemp.setText(String.valueOf(valtemp));
   textnoise.setText(String.valueOf(valn));
   textfm.setText(String.valueOf(valve));
   texte.setText(String.valueOf(vale));
   textec.setText(String.valueOf(valec));
   texthot.setText(String.valueOf((int)valhot)) ;
   Ts=NNt.caltnn(valhot,valcool,count);   cale=(Ts-valtemp)/valtemp;
   calet=cale-calef;   if(cale>vale) cale=vale;
   if(cale<-vale) cale=-vale;
   if(calet>valec) calet=valec;
   if(calet<-valec) calet=-valec;   valu=uhot.Fuzzy(Ke*cale,Ket*calet);   calef=cale;
   Temp[v]=Ts;
   valc[v]=valcool;   for(int k=0;k<920;k++){     if(k<v){
         t=v-k-1;
     }else if(k>=v){
         t=920-k+v;
     }
     if(Temp[t]>0&&(t-1)>=0){
      g.setColor(Color.magenta);
      g.drawLine(k+40,(int)(540-(520*Temp[t-1]/100)),k+40,(int)(540-(520*Temp[t]/100)));   //绘制温度曲线
        g.setColor(Color.white);
        g.drawLine(k+42,(int)(540-(520*Temp[t-1]/100)),k+42,(int)(540-(520*Temp[t]/100)));
        g.setColor(Color.blue);
        g.drawLine(k+40,(int)(540-(520*valc[t-1]/100)),k+41,(int)(540-(520*valc[t]/100)));
        g.setColor(Color.white);
        g.drawLine(k+42,(int)(540-(520*valc[t-1]/100)),k+42,(int)(540-(520*valc[t]/100)));
       }
   }
        try{
          pict.sleep(10);
       }catch(InterruptedException e){}
  v--;  while(v<0) v=920;
   g.drawLine((int)vale,600,(int)valec,400);
    g.setColor(Color.black);
    g.drawRect(0,0,1000,700);
  for(int i=0;i<11;i++)
       {
       g.setColor(Color.pink);
       g.drawLine(40,20+i*52,960,20+i*52);
       g.setColor(Color.pink);
       g.drawString(""+10*(10-i)+"",20,20+i*52);       }
       for(int i=0;i<21;i++){
         g.setColor(Color.pink);
         g.drawLine(40+46*i,20,40+46*i,540);
         g.setColor(Color.pink) ;
         g.drawString(" "+50*i+ " ",(40+46*i),540);
      }
    g.setFont(    new java.awt.Font("Dialog", 0, 16));
      g.drawString("冷水阀门开度",60,595);
      g.drawString("额定工作温度",276,595);
      g.drawString("噪    声",478,595);
      g.drawString("阀门开度基本论域",713,595);
      g.drawString("热水阀门开度",60,646);
      g.drawString("误差基本论域",276,646);
      g.drawString("误差变化基本论域",478,646);
       g.setColor(Color.pink);
       g.drawRect(183,579,52,25);
       g.drawRect(400,579,52,25);
       g.drawRect(624,579,52,25);
       g.drawRect(875,579,52,25);
       g.drawRect(183,625,52,25);
       g.drawRect(400,625,52,25);
       g.drawRect(624,625,52,25);
       g.drawRect(875,625,52,25);
      jBstart.repaint();
      jBpause.repaint();
      jBexit.repaint();
  }  public String getAppletInfo() {
    return "Applet Information";
  }  public String[][] getParameterInfo() {
    return null;
  }
  public void actionPerformed(ActionEvent e)
  {
    if(e.getActionCommand().equals("运行"))
    {
      cool=valcool+dc;
       star=true;
    }
    else if(e.getActionCommand().equals("退出"))
    {
    star=false;
    pau=false;
    System.exit(0);
    }
    else if(e.getActionCommand().equals("暂停"))
    {
    jBpause.setText("继续");
    star=false;
    }
    else if(e.getActionCommand().equals("继续"))
    {
      jBpause.setText("暂停");
      star=true;
    }
  }
    public void textValueChanged(TextEvent e)
   {
      if(e.getSource()==textcool)
      {
      valcool = Double.parseDouble(textcool.getText().trim());
      }
      else if(e.getSource()==texttemp)
      {
      valtemp = Double.parseDouble(texttemp.getText().trim());
      }
      else if(e.getSource()==textfm)
      {
      valve = Double.parseDouble(textfm.getText().trim());
      }
      else if(e.getSource()==texte)
      {
      vale = Double.parseDouble(texte.getText().trim());
      }
      else if(e.getSource()==textec)
      {
      valec = Double.parseDouble(textec.getText().trim());
      }
    } }