It defines a String extension method that includes a StringComparison parameter and indicates whether a string contains a substring when using the specified form of string comparison.

Definition and Usage The contains() method checks whether a string contains a sequence of characters. Returns true if the characters exist and false if not.

Like all special methods (with "magic names" that begin and end in __), __contains__ is not meant to be called directly (except in very specific cases, such as up=calls to the superclass): rather, such …

Jul 11, 2025 · The String.contains() method is used to search for a sequence of characters within a string. In this article, we will learn how to effectively use the string contains functionality in Java.

Mar 22, 2025 · The concept behind string.contains() is simple: it checks whether a given substring is present within a larger string. If the substring is found, it returns a boolean value (True or False), …

pandas.Series.str.contains # Series.str.contains(pat, case=True, flags=0, na=<no_default>, regex=True) [source] # Test if pattern or regex is contained within a string of a Series or Index. Return boolean …

Apr 11, 2025 · A quick example and explanation of the contains API of the standard String class in Java.

Sep 2, 2025 · The contains () method in Java is a member of the String class, which resides in the java.lang package. It is used to check if a sequence of characters exists inside a given string.

Learn how to use the String.contains () method in Java, including syntax, examples, and best practices.

Apr 1, 2025 · Upon going through this tutorial, you will definitely be able to understand and write the Java String programs that require .contains () method for various String operations.