Learn what the instanceof operator does, how to use it correctly, and how to improve your code with some new features in Java. Skip to main content LinkedIn Articles ...

We'd rather not be perceived as Java thought-police, snooping 'round to detect violations of good practice and beating up on offenders. But poor instanceof is itself so easily abused that we feel ...

Using Java 8 and above, instanceof operator is useful to filter out items in a Stream to prevent ClassCastExceptions before invoking a terminal operation like the Collectors method.