Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions.

The Eclipse Java debugger uses an indented list to view arrays at runtime. This visualization provides limited insight into the array. Also, it is cumbersome and time-consuming to search for certain ...

This objective‐based chapter is composed of questions that explore how to work with arrays and collections, as defined by Oracle on the 1Z0‐819 Exam. The topics covered are wildcards, Java array, List ...