Pattern Matching Using Character Classes

Learn how to create pattern objects using character classes and search for the given pattern within any text.

Character classes

A character class is a group of characters that represent patterns. It is made up of brackets followed by a series of characters, e.g. [aeiou], This would match any vowel within your string.

You can specify multiple options in one character class, e.g. [a-zA-Z0-9] will match upper and lower case letters and numbers within your string.

Below are few examples of simple character classes:

The character class [abc]

The character class [abc] will match any one character from the set {a, b, c}. Execute the code below to see this in action.

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