OCP Oracle Certified Professional Java SE 17 Developer Study Guide

AppendixAnswers to the Review Questions

Chapter 1: Building Blocks

1. D, E.  Option E is the canonical main() method signature. You need to memorize it. Option D is an alternate form with the redundant final. Option A is incorrect because the main() method must be public. Options B and F are incorrect because the main() method must have a void return type. Option C is incorrect because the main() method must be static.
2. C, D, E.  The package and import statements are both optional. If both are present, the order must be package, then import, and then class. Option A is incorrect because class is before package and import. Option B is incorrect because import is before package. Option F is incorrect because class is before package.
3. A, E.   ...