Java Long Number Convert To fromLongString(String longString)

Description

Parses the specified string as a Long instance.

License

Open Source License

Parameter

Parameter	Description
longString	String to be parsed as long

Return

Returns the parsed long

Declaration

public static Long fromLongString(String longString) 

Method Source Code

//package com.java2s;
/**/*from   w  ww  .  j  a  v  a  2 s .c  om*/
 * Copyright (c) 2001-2002. Department of Family Medicine, McMaster University. All Rights Reserved.
 * This software is published under the GPL GNU General Public License.
 * 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.
 *
 * This software was written for the
 * Department of Family Medicine
 * McMaster University
 * Hamilton
 * Ontario, Canada
 */

public class Main {
    private static final Long ZERO_LONG = new Long(0);

    /**
     * Parses the specified string as a Long instance. 
     * 
     * @param longString
     *       String to be parsed as long
     * @return
     *       Returns the parsed long
     */
    public static Long fromLongString(String longString) {
        if (longString == null || longString.trim().isEmpty()) {
            return ZERO_LONG;
        }
        try {
            return Long.parseLong(longString);
        } catch (Exception e) {
            return 0L;
        }
    }
}

Related

1. fromLong(long v, int offset, byte[] dest)
2. fromLong(Long value)
3. fromLong(long value)
4. fromLong(long value, int numBytes)
5. fromLong(long x)