OCP Oracle Certified Professional Java SE 11 Programmer I Study Guide

AppendixAnswers to Review Questions

Chapter 1: Welcome to Java

1. B, E. C++ has operator overloading and pointers. Java made a point of not having either. Java does have references to objects, but these are pointing to an object that can move around in memory. Option B is correct because Java is platform independent. Option E is correct because Java is object-oriented. While it does support some parts of functional programming, these occur within a class.
2. C, D. Java puts source code in .java files and bytecode in .class files. It does not use a .bytecode file. When running a Java program, you pass just the name of the class without the .class extension.
3. C, D. This example is using the single-file source-code launcher. It compiles in memory ...