It checks whether the string contains the specified sequence of char values. If yes then it returns true else false. It throws NullPointerException of ‘s’ is null. This method searches the specified ...

For more on that, check out our guide to Android development for beginners. For the purposes of this Java tutorial, it may be easier to write your code directly into a Java compiler app.

Java 16 introduced basic pattern matching with the finalized instanceof method. For more advanced features, like pattern matching in switch, record patterns, and guarded cases, you need Java 21+.

Java Basics ( Java-8 ). Contribute to learning-zone/java-basics development by creating an account on GitHub.