Loops

In C++, there are several basic variable types that you can use to store and manipulate different kinds of data. Here are some of the commonly used variable types:

Integers ('int')

Integers are used to store whole numbers without decimal points. They can be positive, negative, or zero. For example:

int age = 25;
int quantity = -10;
  

Floating point numbers ('float' and 'double')

Floating-point numbers are used to store decimal numbers. They can represent both small and large numbers with decimal precision. float represents single-precision floating-point numbers, while double represents double-precision floating-point numbers. For example:

    float pi = 3.14;
double salary = 2500.50;
  

Characters ('char')

Characters are used to store individual characters. They are enclosed in single quotes (' '). For example:

char grade = 'A';
char symbol = '*';
  

Booleans ('bool')

Booleans can store either true or false. They are commonly used for logical operations and decision-making. For example:

bool isPassed = true;
bool isRaining = false;
  

Strings ('std::string')

Strings are used to store sequences of characters. They are represented using the std::string class from the <string> library. For example:

#include <string>
std::string name = "John Doe";