This works because the two are closely related. In Java, nested classes are categorized as either static member classes or inner classes. Inner classes are non-static member classes, local classes ...

Inner classes have their disadvantages. From a maintenance point of view, inexperienced Java developers may find the inner class difficult to understand. The use of inner classes will also ...

Furthermore, the logic is separated from the point in which it is needed. This will make troubleshooting and code maintenance more difficult. To address the shortcomings of this approach, Java 1.1 ...