Extension class loader: Loads classes that are part of Java extensions. Application class loader: Loads classes that are part of the application being executed.

In part 3 of this series we'll learn how to import additional classes and use try blocks and maps. By the end we'll have a functioning user login screen!

For this example, we’ll look at the HashMap class, which is part of the Java Collections Framework in the java.util package. HashMap, which describes a hash table-based implementation of a map, ...

To recap, part one of this tutorial explained that Java was an ‘object oriented’ language. This means that we’re using classes to define ‘objects’ (objects essentially containing data ...