Java Double to String double2str(double d, int noOfDecimalDigit)

Description

doublestr

License

Open Source License

Declaration

public static String double2str(double d, int noOfDecimalDigit) 

Method Source Code

//package com.java2s;
/*   //from  w  w  w.j a va  2  s.  co  m
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
     
Author : Faisal Adnan
Email  : faisal.adnan@gmail.com
    
 */

public class Main {
    public static String double2str(double d, int noOfDecimalDigit) {
        String str = "";
        String ds = Double.toString(d);
        if (d == 0)
            ds = "0." + generateZeros(noOfDecimalDigit);
        if (ds.length() < noOfDecimalDigit + 2)
            ds = ds + generateZeros(noOfDecimalDigit + 2 - ds.length());
        int delimiterIndex = ds.indexOf(".");
        int decLen = ds.substring(delimiterIndex, ds.length()).length() - 1;
        if (decLen < noOfDecimalDigit + 2)
            ds = ds + generateZeros(noOfDecimalDigit + 2 - decLen);
        str = ds.substring(0, delimiterIndex) + ds.substring(delimiterIndex, delimiterIndex + noOfDecimalDigit + 1);
        return str;
    }

    public static String generateZeros(int n) {
        String res = "";
        for (int i = 0; i < n; i++) {
            res = res + "0";
        }
        return res;
    }
}

Related

1. convertDoubleToString(double value)
2. convertDoubleToString(double value)
3. double2str(double amount, int length)
4. double2string(double doubledata)
5. double2String(double[] v)
6. doubleToStr(Double d)
7. doubleToStr(Double valor)