曾有人给了一个例子:
////////////////////////////////////////////////////////////////////////
  // drawKLine
  // Function : 绘制 K 线
  // Argument : g , width , pDayData , start , end
  //            g , Graphics
  //            width , 宽度
  //            pDayData , 逻辑值
  //            start  , 数组开始索引
  //            end    , 数组结束索引
  // Return  : no
  ////////////////////////////////////////////////////////////////////////
  public void drawKLine(Graphics g, int width, DayLine pDayData, int start, int end )
  {
        try
        {
            if( m_boxRect == null ¦¦ pDayData == null)
                return;            // end - start;
            // len ++ ;            if( start >= end &brvbar;&brvbar; start < 0 )
                return;            if( end >= pDayData.m_point .length )
              end = pDayData.m_point.length -1 ;            boolean bIsUp = true;
            // g.setColor(PublicClass.m_FixTextColor);
            // CRect crect = new CRect();            int x[] = horiAxis.getScrValuesBySeralInteger( start, end );            Rectangle rect = new Rectangle() ;
            int rHalfWidth = width/2  ;            for(int i = start ; i <= end ; i++)
            {
                rect.x = x[ i-start ] - rHalfWidth ;
                rect.width = 2*rHalfWidth ;                if(pDayData.m_point[i].m_nOpenPrice <= pDayData.m_point[i].m_nClosePrice)
                {
                  // 上涨
                  rect.y = vertAxis.getScrValue( pDayData.m_point[i].m_nClosePrice );
                  rect.height = vertAxis.getScrValue( pDayData.m_point[i].m_nOpenPrice);
                  g.setColor( Resource.COLOR_UPCOLOR );
                  bIsUp = true ;
                }
                else
                {
                  // 下跌
                  rect.y = vertAxis.getScrValue( pDayData.m_point[i].m_nOpenPrice);
                  rect.height = vertAxis.getScrValue( pDayData.m_point[i].m_nClosePrice );
                  g.setColor( Resource.COLOR_DOWNCOLOR );
                  bIsUp = false ;
                }                rect.height -=rect.y;                int iScrMaxPrice  = vertAxis.getScrValue( pDayData.m_point[i].m_nHighPrice );
                int iScrMinPrice  = vertAxis.getScrValue( pDayData.m_point[i].m_nLowPrice) + 1;                g.drawLine( x[i-start], iScrMaxPrice, x[i-start], rect.y );
                g.drawLine( x[i-start], rect.y+rect.height , x[i-start], iScrMinPrice);                if(! bIsUp )
                  if( rect.width <=0 &brvbar;&brvbar; rect.height <=0 )
                    g.drawLine( rect.x, rect.y, rect.x+rect.width, rect.y+rect.height );
                  else
                    g.fillRect( rect.x , rect.y, rect.width + 1, rect.height );                else    // 上涨
                  if( rect.width <=0 &brvbar;&brvbar; rect.height <=0 )
                    g.drawLine( rect.x, rect.y, rect.x+rect.width, rect.y+rect.height );
                  else
                  {
                    //g.setColor(Color.black);
                    //g.fillRect( rect.x, rect.y, rect.width, rect.height );
                    //g.setColor(PublicClass.m_UpColor);
                    g.drawRect( rect.x, rect.y, rect.width, rect.height );
                  }
            }            return;
        }
        catch(NullPointerException _ex)
        {
            return;
        }
  }但我编译时出现了E:\javatest\DrawLineTest.java:13: 期望class或interface
  public void drawKLine(Graphics g, int width, DayLine pDayData, int start, int end )
        ^
1 个错误
Process completed with exit code 1
请问有什么办法解决?