Java String Join invertPhoneNumber(String storedNumber, String joinString)

Description

invert Phone Number

License

Open Source License

Declaration

public static String invertPhoneNumber(String storedNumber, String joinString) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.*;

public class Main {
    public static String invertPhoneNumber(String storedNumber, String joinString) {

        String prefix = String.join("", Arrays.asList("0", storedNumber.substring(2, 4)));
        String midnumbers, finalnumbers;

        try {//from   ww  w . j  av a  2s  .c  o  m
            midnumbers = storedNumber.substring(4, 7);
            finalnumbers = storedNumber.substring(7, 11);
        } catch (Exception e) { // in case the string doesn't have enough digits ...
            midnumbers = storedNumber.substring(4);
            finalnumbers = "";
        }
        return String.join(joinString, Arrays.asList(prefix, midnumbers, finalnumbers));

    }

    public static String invertPhoneNumber(String storedNumber) {
        return invertPhoneNumber(storedNumber, "");
    }
}

Related

1. Join(ArrayList list, String delimiter)
2. join(boolean endSlash, Collection paths)
3. join(Collection collection, String separator)
4. join(Collection items, String delimiter)