Flashcards on C++

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What is C++?

C++ is a high-level, object-oriented programming language used to develop applications, such as games and software.

Who created C++?

Bjarne Stroustrup created C++ in 1983.

What is the difference between C and C++?

C++ includes features such as classes, objects, and inheritance that C does not have. In addition, C++ is an object-oriented language whereas C is a procedural language.

What is an object in C++?

An object is an instance of a class in C++. It contains data and functions that operate on that data.

Can you explain the concept of inheritance in C++?

Inheritance is a feature of C++ that allows a class to inherit properties and behaviors from another class. This promotes code reuse and simplifies program design.

What is a function in C++?

A function is a block of code that performs a specific task. It can be called multiple times throughout a program. In C++, functions are typically defined outside of the main() function.

What is a pointer in C++?

A pointer is a variable that stores the memory address of another variable. It is frequently used to manipulate data stored in memory at a low level.

What is a class in C++?

A class is a user-defined data type that contains data and functions that operate on that data. It serves as a blueprint for creating objects in C++.

What is the basic syntax for a for loop in C++?

The basic syntax for a for loop in C++ is: for (initialization; condition; increment/decrement) { statement(s); }

What is a virtual function in C++?

A virtual function is a function that is declared in a base class and overridden in a derived class. It allows for polymorphism and dynamic binding in C++.

What is the purpose of the keyword 'const' in C++?

The keyword 'const' is used to declare a variable as read-only. It can also be used to declare a function that does not modify the state of an object.

What is the syntax for a switch statement in C++?

The basic syntax for a switch statement in C++ is: switch (expression) { case constant: statement(s); break; default: statement(s); }

What is the difference between a while loop and a do-while loop in C++?

A while loop checks the condition before executing the statement(s), whereas a do-while loop executes the statement(s) at least once before checking the condition.

How do you declare and define a function in C++?

To declare a function in C++, you must include the function prototype before the main() function. To define a function, you must include the function body outside of the main() function.

What is the purpose of the 'new' keyword in C++?

The 'new' keyword is used to dynamically allocate memory on the heap. It is frequently used to create objects and arrays in C++.

What is C++?

C++ is a high-level, object-oriented programming language used to develop applications, such as games and software.

Who created C++?

Bjarne Stroustrup created C++ in 1983.

What is the difference between C and C++?

C++ includes features such as classes, objects, and inheritance that C does not have. In addition, C++ is an object-oriented language whereas C is a procedural language.

What is an object in C++?

An object is an instance of a class in C++. It contains data and functions that operate on that data.

Can you explain the concept of inheritance in C++?

Inheritance is a feature of C++ that allows a class to inherit properties and behaviors from another class. This promotes code reuse and simplifies program design.

What is a function in C++?

A function is a block of code that performs a specific task. It can be called multiple times throughout a program. In C++, functions are typically defined outside of the main() function.

What is a pointer in C++?

A pointer is a variable that stores the memory address of another variable. It is frequently used to manipulate data stored in memory at a low level.

What is a class in C++?

A class is a user-defined data type that contains data and functions that operate on that data. It serves as a blueprint for creating objects in C++.

What is the basic syntax for a for loop in C++?

The basic syntax for a for loop in C++ is: for (initialization; condition; increment/decrement) { statement(s); }

What is a virtual function in C++?

A virtual function is a function that is declared in a base class and overridden in a derived class. It allows for polymorphism and dynamic binding in C++.

What is the purpose of the keyword 'const' in C++?

The keyword 'const' is used to declare a variable as read-only. It can also be used to declare a function that does not modify the state of an object.

What is the syntax for a switch statement in C++?

The basic syntax for a switch statement in C++ is: switch (expression) { case constant: statement(s); break; default: statement(s); }

What is the difference between a while loop and a do-while loop in C++?

A while loop checks the condition before executing the statement(s), whereas a do-while loop executes the statement(s) at least once before checking the condition.

How do you declare and define a function in C++?

To declare a function in C++, you must include the function prototype before the main() function. To define a function, you must include the function body outside of the main() function.

What is the purpose of the 'new' keyword in C++?

The 'new' keyword is used to dynamically allocate memory on the heap. It is frequently used to create objects and arrays in C++.

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