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`public static final String regularExpression = "[a-zA-Z][a-zA-Z0-9\_]{7,29}";
[a-zA-Z] Matches any letter at the beggining
[a-zA-Z0-9_] Matches any letter, digit or underscore. Equivalent to \w.
{7,29} From 8 to 30, but counting here the beggining letter.
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Valid Username Regular Expression
You are viewing a single comment's thread. Return to all comments →
[a-zA-Z] Matches any letter at the beggining
[a-zA-Z0-9_] Matches any letter, digit or underscore. Equivalent to \w.
{7,29} From 8 to 30, but counting here the beggining letter.