C++ Programming MCQs SET-1

C++ was created by Bjarne Stroustrup at Bell Labs starting in 1979 as an extension of the C programming language.

Bjarne Stroustrup began working on 'C with Classes' in 1979, which was later renamed to C++ in 1983.

One of the core strengths of OOP is the ability to create user-defined data types through classes, which allows for better abstraction and encapsulation.

Before it was officially named C++ in 1983, the language was known as 'C with Classes'.

A character constant in C++ must be a single character enclosed in single quotes. All the options provided are strings or invalid formats, not single character constants.

In C++, integer division of 7/22 results in 0. Since the entire multiplication sequence begins with 0, the final result of the expression is 0.

C++ is often called semi-object-oriented because it allows programming without classes (procedural style) and does not require every part of the program to be an object, unlike 'pure' OOP languages.

While the term 'extensible' is often used to describe this capability, the provided answer key for this specific set indicates 'None'.

Modern compilers optimize all basic loop structures (for, while, do-while) into similar machine code, so there is generally no performance difference between them.

The size of an integer is not fixed by the C++ language standard; it depends on the specific compiler and the architecture of the computer system.

C++ is a statically typed language, meaning that the data type of every variable is checked at compile time rather than at runtime.

C++ is classified as a high-level language because it provides strong abstraction from the hardware and uses human-readable syntax, though it also offers low-level memory manipulation features.

There are three main types of constructors: Default Constructor (no arguments), Parameterized Constructor (with arguments), and Copy Constructor (initializes an object using another object of the same class).

In C++, a stream is an abstraction that represents a flow of data between a source (like a keyboard or file) and a destination (like a screen or file).

A class is a blueprint that groups together both data members (variables) and member functions (methods) into a single unit.

The hash symbol (#) is used to identify pre-processor directives, such as #include or #define, which are processed before the actual compilation begins.

The semicolon (;) is the statement terminator in C++, used to signify the end of a logical instruction.

Function overriding allows a derived class to provide a specific implementation of a method already defined in its base class, which is resolved during program execution (Runtime Polymorphism).