java string contains - Cuardach Físeáin

#69 Java String contains() Method – Check if a String Has a Substring

#69 Java String contains() Method – Check if a String Has a Substring

In this tutorial, you’ll learn how to use the contains() method in Java to check if a string contains a specific sequence of characters. We’ll explain the method’s syntax, how it returns a boolean value, and show examples with case sensitivity. You’ll also see practical use cases like validating input, searching text, and filtering ...

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