Regex To Match Fully Qualified Class Name In Java

A regular expression to check the plausibility of a fully-qualified class name in Java.

/([a-zA-Z_$][a-zA-Z\d_$]*\.)*[a-zA-Z_$][a-zA-Z\d_$]*/g

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Matches:

• Java.lang.Class
• Java.lang.Class.forName
• Java.lang

Non-matches:

• Java lang.Class.forName
• Java.lang.Class forName

See Also:

• Java Package Name Regular Expression
• JavaScript/PHP/Java/Kotlin/Go/C/Swift/C# Comment Regular Expression