Exam Essentials

1. Be able to identify correct and incorrect method declarations. A sample method signature is public static void method(String… args) throws Exception {}.
2. Identify when a method or field is accessible. Recognize when a method or field is accessed when the access modifier (private, protected, public, or default access) does not allow it.
3. Recognize valid and invalid uses of static imports. Static imports import static members. They are written as import static, not static import. Make sure they are importing static methods or variables rather than classnames.
4. State the output of code involving methods. Identify when to call static rather than instance methods based on whether the classname or object comes before the method. Recognize the correct overloaded method. Exact matches are used first, followed by wider primitives, followed by autoboxing, followed by varargs. Assigning new values to method parameters does not change the caller, but calling methods on them does...