java绘制一个成交量的统计图

N,11));
        g.drawString(Float.toString(pcent),x0,y0-5);//在柱状图上绘制%
        if(I%2==0)
          g.setColor(Color.orange);
        else
          g.setColor(Color.red);
        g.fillRect(x0,y0,hx,hy);  //绘制柱状图
        //g.setColor(Color.red);  //绘制股票代码
        //g.setFont(new Font("Times New Roman",Font.PLAIN,10));
        //g.drawString(""+xCode[I],x0,height-topMargine+40);
      }
      Color titleColor=new Color(0,64,128);
      g.setColor(titleColor);
      g.setFont(new Font("monospaced",Font.BOLD,20));
      g.drawString(title,190,40);
    }
    catch(Exception e){
      System.out.println("sellhis paint error.");
      System.out.println(e);
    }
  }
  public static float Substr(String str){
    int I=0;
    StringTokenizer st = new StringTokenizer(str,",");
    int len=st.countTokens();
    float val=new float[len];
    while(st.hasMoreTokens()) {
      val[I]=Integer.parseInt(st.nextToken());
      I++;
    }
    return val;
  }
  public static String Subicode(String str){
    int I=0;
    StringTokenizer st = new StringTokenizer(str,",");
    int len=st.countTokens();
    String val=new String[len];
    while(st.hasMoreTokens()) {
      val[I]=st.nextToken();
      I++;
    }
    return val;
  }
  public static String getMaxVal(float Maxval){
    int I;
    float result;
    result=Maxval[0];
    for(I=0;I<Maxval.length;I++){
      if(result<Maxval[I])
        result=Maxval[I];
    }
    return Float.toString(result);
  }
  public String getTitle(String str){
    String title;
    title=str.substring(0,4)+"年"+str.substring(4,6)+"月賣空