In the Java API, classes are grouped into packages. ArrayList is in the package called java.util, which holds a pile of utility classes. You have to know the full name* of the class you want to use in ...

You might learn all about those categories from our cheat sheet. This Java API includes identifiers, literals, etc. String methods, abstract classes, interfaces, array methods, terminology, loops, ...

The purpose of this cheat sheet is to show that modules in Java are friendly to us, developers, and easy to use. The Module Declaration (module-info.java) section explains how to define modules. The ...

If you're looking to learn a programming language that's cross-platform and easily accessible, Java is one of the most practical languages out there. This handy cheat sheet helps you keep track of ...