096

        }catch(NumberFormatExceptione){

        Matchermatcher=null;

        093

        053

        082

        083

        }else{

        092

        069

        075

        s=decimalFormat.format(obj);

        s=numberFormat.format(obj);

        068

        065

        }

        //循环计算所有括号里的表达式

        publicstaticStringcomputeString(Stringstring){

        085

          computeStirngNoBracket(temp)

          string.substring(index  temp.length());

        intindex=-1;

        //最后计算总的表达式结果

        076

        087

        070

        returns;

        }

        089

        /**

        079

        Stringregex=“\\([\\d\\.\\  \\-\\*/]  \\)“;//提取括号表达式

        */

        090

        while(pattern.matcher(string).find()){

        }

        056

        054

        *@paramstring

        074

        066

        094

        071

        078

        073

        072

        while(matcher.find()){

        055

        081

        }

        *计算字符串四则运算表达式

        }catch(Exceptione){

        097

        Stringtemp=““;

si  m  i  s  h  u  wu.  c  o  m

        060

        095

        *@return

        067

        string=string.replaceAll(“\\s“，““);//去除空格

        string=string.substring(0，index)

        059

        matcher=pattern.matcher(string);

        try{

        NumberFormatnumberFormat=NumberFormat.getInstance();

        080

        084

        StringregexCheck=“[\\(\\)\\d\\  \\-\\*/\\.]*“;//是否是合法的表达式

        }

        if(!Pattern.matches(regexCheck，string))

        061

        088

        returne.getMessage();(未完待续。)

        058

        057

        091

        }

        064

        063

  052

        }else{

        string=computeStirngNoBracket(string);

        index=string.indexOf(temp);

        077

        Patternpattern=Patternpile(regex);

        DecimalFormatdecimalFormat=newDecimalFormat(format);

        temp=matcher.group();

        062

        086

        returnstring;