Java Char Digit Check isDigit(char charAt)

Description

is Digit

License

Open Source License

Parameter

Parameter	Description
charAt	a parameter

Declaration

public static boolean isDigit(char charAt) 

Method Source Code

//package com.java2s;
/* //from  w  ww .  j a v  a2  s.  c om
 * =============================================================
 * Copyright (C) 2007-2011 Edgenius (http://www.edgenius.com)
 * =============================================================
 * License Information: http://www.edgenius.com/licensing/edgenius/2.0/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2.0
 * as published by the Free Software Foundation.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * http://www.gnu.org/licenses/gpl.txt
 *  
 * ****************************************************************
 */

public class Main {
    private static final char[] DIGIT = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };

    /**
     * @param charAt
     * @return
     */
    public static boolean isDigit(char charAt) {
        for (int idx = 0; idx < 10; idx++) {
            if (charAt == DIGIT[idx])
                return true;
        }
        return false;
    }
}