Regular expression to match exact number of characters

Question

I need a regular expression that will match any three uppercase letters  so AAA or ABC or DKE  It can t match four or more though  like AAAA or ABCDEF or aBBB   My solution     A-Z  A-Z  A-Z     Questions     Is this correct  Is there another way  just for the sake of learning

User · Accepted Answer

What you have is correct  but this is more consice        A-Z  3

User · Answer

Your solution is correct  but there is some redundancy in your regex  The similar result can also be obtained from the following regex      A-Z  3      The  3  indicates that the  A-Z  must appear exactly 3 times

[regex] Regular expression to match exact number of characters?

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