Your indentation in the first class is good, but please don't put empty lines inside methods. Put empty lines between methods instead. The indentation in the second class is poor, and the nested enum is really difficult to read; the length of line 56 makes that worse.
Be sure not to start package names, parameter names, variable names, or method names with CapitalLetters. Only classes and interfaces should start with CapitalLetters.
Only use _ in names if they are CONSTANT_NAMES or package names that won't compile without the _. See the Java™ Tutorials.