ArrayListMerge – Merging two ArrayList avoiding duplicate values

' Merge two ArrayList, avoiding duplicate values (if there are already ' duplicate values in same input ArrayList however, they are not discarded)' ' Example:'   Dim al1 As New ArrayList'   al1.Add("John")'   al1.Add("Ann")'   al1.Add("Frank")''   Dim al2 As New ArrayList'   al2.Add("Ann")'   al2.Add("Tony")'   al2.Add("Mark")'   al2.Add("John")''   Dim al3 As ArrayList = ArrayListMerge(al1, al2)'   Dim o As Object'   Debug.WriteLine("Number of elements in the ArrayList returned from ' ArrayListMerge: " & al3.Count)'   For Each o In al3'       Debug.WriteLine(o)'   NextFunction ArrayListMerge(ByVal al1 As ArrayList, ByVal al2 As ArrayList) As _    ArrayList    ' initialize the capacity to the total count of elements from both array     ' lists    Dim res As New ArrayList(al1.Count + al2.Count)    ' append the items in the first ArrayList    res.AddRange(al1)    Dim o As Object    For Each o In al2        ' add all the al2's elements that are not contained in al1        If Not al1.Contains(o) Then            res.Add(o)        End If    Next    ' trim the ArrayList to the number of actually used slots    res.TrimToSize()    Return resEnd Function

Share the Post:
Share on facebook
Share on twitter
Share on linkedin


The Latest

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS

homes in the real estate industry

Exploring the Latest Tech Trends Impacting the Real Estate Industry

The real estate industry is changing thanks to the newest technological advancements. These new developments — from blockchain and AI to virtual reality and 3D printing — are poised to change how we buy and sell homes. Real estate brokers, buyers, sellers, wholesale real estate professionals, fix and flippers, and beyond may