match IP value by regex - Android java.util.regex

Android examples for java.util.regex:Character Pattern

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Description

match IP value by regex

Demo Code


//package com.java2s;

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

public class Main {

    private static final String V_IP4 = "^(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])$";

    public static boolean IP4(String value) {
        return match(V_IP4, value);
    }// ww  w . j a  v a  2  s .  c  om

    private static boolean match(String regex, String str) {
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(str);
        return matcher.matches();
    }
}

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