is string a valid Phone Number - Android java.util.regex

Android examples for java.util.regex:Number Pattern

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Description

is string a valid Phone Number

Demo Code

import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.text.TextUtils;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.Random;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main{

    public static boolean isPhoneNumberValid(String phoneNumber) {
        boolean isValid = false;
        String expression = "^//(?(//d{3})//)?[- ]?(//d{3})[- ]?(//d{5})$";
        String expression2 = "^//(?(//d{3})//)?[- ]?(//d{4})[- ]?(//d{4})$";
        CharSequence inputStr = phoneNumber;
        Pattern pattern = Pattern.compile(expression);
        Matcher matcher = pattern.matcher(inputStr);
        Pattern pattern2 = Pattern.compile(expression2);
        Matcher matcher2 = pattern2.matcher(inputStr);
        if (matcher.matches() || matcher2.matches()) {
            isValid = true;/*  w ww  .  j  av a  2 s .co m*/
        }
        return isValid;

    }

}

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