Java Regex Int Validate parseInt(String value)

Description

parse Int

License

GNU General Public License

Declaration

public static Integer parseInt(String value) 

Method Source Code

//package com.java2s;
/*/*from www  . ja  v a2 s  .co  m*/
 * This is the source code of Telegram for Android v. 2.x.x.
 * It is licensed under GNU GPL v. 2 or later.
 * You should have received a copy of the license in this archive (see LICENSE).
 *
 * Copyright Nikolai Kudashov, 2013-2015.
 */

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    public static Pattern pattern = Pattern.compile("[0-9]+");

    public static Integer parseInt(String value) {
        if (value == null) {
            return 0;
        }
        Integer val = 0;
        try {
            Matcher matcher = pattern.matcher(value);
            if (matcher.find()) {
                String num = matcher.group(0);
                val = Integer.parseInt(num);
            }
        } catch (Exception e) {
            //FileLog.e("tmessages", e);
        }
        return val;
    }
}

Related

1. parseInt(Object str)
2. parseInt(String[] strs)
3. parseInteger(String attrVal)
4. parseInteger(String inStr, Integer def)
5. parseInteger(String key, String sourceString)