/**
 * @ClassName ScoreUtil
 * @Description 分數處理工具類
 * @author candymoon
 * @Date 2014-4-25
 */
public class ScoreUtil {

     /** 
     * 使用java正則表示式去掉多餘的.與0 
     * @param s 
     * @return  
     */  
    public static  String subZeroAndDot(String s){  
        if(!s.isEmpty()&&s!=""){
            if(s.indexOf(".") > 0){  
                s = s.replaceAll("0+?$", "");//去掉多餘的0  
                s = s.replaceAll("[.]$", "");//如最後一位是.則去掉  
                //如果現在還包含小數部分
                if(s.indexOf(".")>0){
                    double db = Double.valueOf(s);
                    float retscorce = (float)(Math.round(db*10))/10;
                    return retscorce+"";
                }
            }
        }
        return s;  
    } 
    
    /** 
    * @Title: caculateScoreByProportion 
    * @Description: 按比例計算出分數
    * @author candymoon
    * @date 2014-4-28 下午3:23:03
    * @param curProportion
    * @param curScorceInfo
    * @return
    */
    public static String caculateScoreByProportion(String curProportion,String curScorceInfo){
        //分數 當前分數為0分
        if(!curScorceInfo.isEmpty()&&curScorceInfo!=""){
            return "0";
        }
        float scorceInfo = Float.valueOf(curScorceInfo);
        float proportion = Float.valueOf(curProportion)/100;
        float retscorce = (float)(Math.round(scorceInfo*proportion*10))/10;
        return retscorce+"";
    }
    
    /** 
    * @Title: addScore 
    * @Description: 計算2個得分
    * @author candymoon
    * @date 2014-4-28 下午3:51:03
    * @param beforescorceInfo
    * @param aftercorceInfo
    * @return
    */
    public static String addScore(String beforescorceInfo,String aftercorceInfo){
        float beforescorceInfo1 = Float.valueOf(beforescorceInfo);
        float aftercorceInfo2 = Float.valueOf(aftercorceInfo);
        return (beforescorceInfo1+aftercorceInfo2)+"";
    }
    
     /**
      * 將double型別資料轉換為百分比格式，並保留小數點前IntegerDigits位和小數點後FractionDigits位
      * @author candymoon
      * @param d
      * @param IntegerDigits
      * @param FractionDigits
      * @return
      */
     public static String getPercentFormat(double d,int IntegerDigits,int FractionDigits){
      NumberFormat nf = java.text.NumberFormat.getPercentInstance(); 
      nf.setMaximumIntegerDigits(IntegerDigits);//小數點前保留幾位
      nf.setMinimumFractionDigits(FractionDigits);// 小數點後保留幾位
      String str = nf.format(d);
      return str;
     }
     /**
      * 
      * @param d
      * @return
      */
     public static String getPercentFormat(double d){
      DecimalFormat df = new DecimalFormat(".00");
      String str = df.format(d);
      float con = Float.valueOf(str);
      con = con*100;
      str = (int)con+"%";
      return str;
     }
    /**
     * 獲取指定小數位的字串
     * @param fractionDigits (四捨五入)保留幾位小數
     * @return
     */
     public static String getFractionDigits(double dvalue,int fractionDigits){
        String decimalFormat = "%."+fractionDigits+"f";
        String valueString = String.format(decimalFormat,dvalue);
        //System.out.println(valueString);
        return valueString;
     }
     
    public static void main(String[] args) {
        System.out.println(ScoreUtil.caculateScoreByProportion("40", "62"));
        System.out.println(getPercentFormat(111.0123,3,3));
        getFractionDigits(0.0,3);
        //System.out.println(getFractionDigits(12438.45687,3));
        //System.out.println(getFractionDigits(12438.00,3));
        
    }