## Core Java Lang (Part 3) This module contains articles about core features in the Java language - [Class.isInstance vs Class.isAssignableFrom](https://www.baeldung.com/java-isinstance-isassignablefrom) - [Converting a Java String Into a Boolean](https://www.baeldung.com/java-string-to-boolean) - [When are Static Variables Initialized in Java?](https://www.baeldung.com/java-static-variables-initialization) - [Checking if a Class Exists in Java](https://www.baeldung.com/java-check-class-exists) - [The Difference Between a.getClass() and A.class in Java](https://www.baeldung.com/java-getclass-vs-class) - [[<-- Prev]](/core-java-modules/core-java-lang-2)