Data Types in C++

Data types are the type of data that a variable can store in a program.

1. Integer

  • It is used to store integers.
  • Integers take 4 bytes of memory.

Syntax

int var = 123;

2. Character

  • It is used to store characters.
  • It takes 1 bytes of memory.

Syntax

char var = 'a';

3. Floating Point

  • It is used for storing single-precision floating-point numbers.
  • It takes 4 bytes of memory.

Syntax

float num = 1.23;

4. Double

  • It is used to store double-precision floating point numbers.
  • It takes 8 bytes of memory.

Syntax

double num = 1.2345;

5. Boolean

  • It is used to store logical values that can be either true or false.

Syntax

boolean b = false;

6. String

  • A string is a collection of characters surrounded by double quotes. The string data type is used to store words or sentences.
  • The string data type is part of the Standard Library and is defined in the <string> header file.
  • We have to include <string> header file for using string class.

Syntax

string str = "w3wiki";

C++ Cheatsheet

This is a C++ programming cheat sheet. It is useful for beginners and intermediates looking to learn or revise the concepts of C++ programming. While learning a new language, it feels annoying to switch pages and find different websites for different concepts that are easily understandable. You can learn C++ concepts very easily using this cheat sheet.

C++ is a high-level programming language. It was developed in 1983 by Bjarne Stroustrup at Bell Labs. It is used for developing various applications.

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