Multi-Language Programming Fundamentals Quiz

JavaScript runs in web browsers across all major operating systems including Windows, macOS, and Linux, making it platform-independent. The claim that it only runs on Windows is false.

Constructors are special member functions with the same name as their class. The default constructor initializes primitive fields to zero/null. If no constructor is written, the compiler provides a default constructor.

All statements A, B, and C are false. Applets do not have a main method (they use init(), start(), etc.), GUI components can be added to containers in various ways, and the Applet class is public. Therefore D is correct.

JFC stands for Java Foundation Classes, which is the GUI framework for Java including Swing.

Java APIs are indeed libraries of pre-compiled code that provide reusable functionality for developers.

The statement 'Foo.Print()' is incorrect because Print() is an instance method (not static). Instance methods must be called on an object instance, not the class name. The correct syntax would be 'f.Print();' where 'f' is the instance. Class-name syntax (Foo.Print()) is only valid for static methods.

A jagged array in C# is an array-of-arrays where each inner array can have different lengths. The syntax uses two sets of brackets: 'int[][]' or 'int[][] = new int[3][]'. Option C shows this correctly. Options A and B are rectangular/multi-dimensional arrays (commas between brackets), not jagged arrays. Jagged arrays are declared and initialized with '[]' syntax, not '[,,]' syntax.

JavaScript is a completely different language from Java, despite the similar name. JavaScript was originally named Mocha, then LiveScript, before being renamed as a marketing tactic to ride Java's popularity. Java is a statically-typed, compiled language while JavaScript is dynamically-typed and interpreted.

JavaScript is an object-based language, meaning it uses objects as its fundamental building blocks but doesn't have classical inheritance. Unlike purely objective languages like C++, it uses prototype-based inheritance. It's not subjective or evil in any technical sense.

Single-line comments in JavaScript start with two forward slashes (//). Option B describes the end of a multi-line comment (/), option C is just multiplication, and option D is the start of a multi-line comment (/), which can span multiple lines but isn't used for single lines.

Accessor methods (also called getters) are methods that retrieve or return data without modifying it. They 'access' the object's state. This is the correct terminology - methods that modify data are called mutators or setters.

JavaScript is a cross-platform technology that runs on any device with a JavaScript engine - Windows, Mac, Linux, mobile devices, and more. It was originally designed for web browsers which themselves run on multiple operating systems.

In C#, value types are primitive types that store data directly. Struct, Delegate, and Enumeration are all value types. string is a reference type - it's an object that stores a reference to the actual string data on the heap, not the data itself.