java实现浮点数转人民币的小例子

import java.util.arraylist;
import java.util.list;

public class rmbconverter2 implements irmbconverter {

    private static final string [] rmb_number ={"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};

    private static final string [] rmb_attr = {"元","十","佰","仟","万","十","百","仟","亿","十","佰","仟","万","十","佰","仟"};

    private static final string[] rmb_fen = {"分","角"};

     
    @override
    public string change2rmb(double counts) {
        stringbuffer rsbuf = new stringbuffer();

        if (counts == 0l) {
            return "零";
        }

        if (counts < 0) 
            rsbuf.append("负");

        string zheng = strconverse(string.valueof((long)counts));
        string xiao = strconverse(string.valueof(math.round((counts - (long)counts)*100)));

        char [] zhengarray = zheng.tochararray();
        char [] xiaoarray = xiao.tochararray();

        int zlength = zhengarray.length;
        int xlength = xiaoarray.length;

        list<string> zhenglist = new arraylist<string>();

        for(int i =0; i< zlength; i++) {
            int value = integer.parseint(""+zhengarray[i]);
            if (value == 0 && (i != 4) && (i != 8) && i != 0) {
                zhenglist.add(rmb_number[value]);
            }else {
                zhenglist.add(rmb_number[value]+
                     rmb_attr[i]);
            }
        }

        for(int i = zhenglist.size()-1; i>=0; i--) {
            rsbuf.append(zhenglist.get(i));
        }

         
        for(int i =0; i<xlength ;i++) {
            int value = integer.parseint(""+xiaoarray[i]);
            if (value > 0 ) {
                rsbuf.append(rmb_number[value])
                 .append(rmb_fen[xlength-i-1]);
            }
        }

        string rs = rsbuf.tostring();
        rs = rs.replaceall("零+", "零");
        rs = rs.replaceall("零元", "元");
        rs = rs.replaceall("零万", "万");
        rs = rs.replaceall("零亿", "亿");
        rs = rs.replaceall("亿万", "亿");
        return rs;
    }

     
    private string strconverse(string str) {
        stringbuffer rs = new stringbuffer();
        char [] strarray = str.tochararray();
        for(int i = str.length()-1; i>=0; i--) {
            rs.append(strarray[i]);
        }
        return rs.tostring();
    }

     
    public static void main(string args []) {

        rmbconverter2 c2 = new rmbconverter2();
        system.out.println(c2.change2rmb(2001004.10));
        system.out.println(c2.change2rmb(2000000.10));
        system.out.println(c2.change2rmb(0l));
        system.out.println(c2.change2rmb(1121000010000000l));
    }

}