I have already mentioned inner and nested classes in the previous section. Now, we will look at them in a bit more detail.
The details of inner and nested classes at this point may be difficult. Don't feel ashamed if you do not understand this section fully. If it is too difficult, skip to the next section and read about packages and return here later. Nested, inner, and local classes are rarely used, though they have their roles and use in Java. Anonymous classes were very popular in GUI programming with the Swing user interface that allowed developers to create Java GUI applications. With Java 8 and the lambda feature, anonymous classes are not so important these days, and with the emerging JavaScript ...
