Java Base Encode toBase62(int decimalNumber)

Description

to Base

License

Open Source License

Parameter

Parameter	Description
decimalNumber	number to convert to the base62

Return

string representation of the decimal number

Declaration

public static String toBase62(int decimalNumber) 

Method Source Code

//package com.java2s;
/*/*from w  w w .  j a  v a2 s .c  o m*/
 Copyright (C) 2009 maik.jablonski@gmail.com
    
 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 3 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, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    private static final String baseDigits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

    /**
     * 
     * @param decimalNumber number to convert to the base62
     * @return string representation of the decimal number
     */
    public static String toBase62(int decimalNumber) {
        return fromDecimalToOtherBase(62, decimalNumber);
    }

    private static String fromDecimalToOtherBase(int base, int decimalNumber) {
        String result = decimalNumber == 0 ? "0" : "";
        while (decimalNumber != 0) {
            int mod = decimalNumber % base;
            result = baseDigits.substring(mod, mod + 1) + result;
            decimalNumber = decimalNumber / base;
        }
        return result;
    }
}

Related

1. toBase2SuffixedString(long n)
2. toBase32Char(int i)
3. toBase36(int decimalNumber)
4. toBase36(long l)
5. toBase36(long num)
6. toBase8(int decimalNumber)
7. toBase85String(byte[] data)
8. toBase90(int i)