i want to compare a variable to an array and if it is not in there prefom a function if (variable A is not in Array B) { some function. } im creatin a program where i want to add variables to an array but only if they are not already in there

Like this? PS C:\> $arr = "Red","Blue","Green" PS C:\> $a = "Red" PS C:\> $b = "Yellow" PS C:\> $arr -contains $a True PS C:\> $arr -contains $b False PS C:\> $a,$b | foreach {if ($arr -contains $_){write-host "Found $_"}} Found Red PS C:\>[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "

i have this im trying to find the sintax to see if uniqueword conatins word[i] its in a loop looking through a text file at the moment unique words has no variables in it if (!uniqueword[numWords].contains(word[i])) { counts = (counts + 1); uniqueword[i]= word[i]; } i should mention im using java and only learning programming so dont iunderstand alot of syntax

Hash tables work, too: PS C:\> $ht = @{} PS C:\> "Red","Blue","Green","Red" |% {$ht[$_] = $null} PS C:\> $ht.keys Green Red Blue PS C:\> "blue","red","purple","yellow" |% {$ht[$_] = $null} PS C:\> $ht.keys Green yellow Red purple Blue PS C:\>[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "

im really sorry but i have no idea what that means at all is it pesudo code?

That's Powershell code. You've posted in the Exchange Server Admin forum, and that's the scripting language used for management of Exchange servers. I think you probably need to ask in a different forum.[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "

ic thank you im not sure since just made a file for first time