3variables.cpp

#include <iostream>
using namespace std;

int main() {
    int myNum = 15; //Integer variable
    cout << myNum<<"\n"; // \n is used to go to next line

    int myNumber; //Integer variable
    myNumber = 15; //Variable Initialization : Giving value to a variable
    cout << myNumber<<"\n"; //For output of given variable
    
    int num = 5;               // Integer (whole number without decimals)
    double myFloatNum = 5.99;    // Floating point number (with decimals)
    char myLetter = 'D';         // Character
    string myText = "Hello";     // String (text)
    bool myBoolean = true;       // Boolean (true(1) or false(0))

    cout<<"Integer : "<<num<<"\n";
    cout<<"Float : "<<myFloatNum<<"\n";
    cout<<"Character : "<<myLetter<<"\n";
    cout<<"String : "<<myText<<"\n";
    cout<<"Boolean : "<<myBoolean<<"\n";
    

    return 0;
}


// Variables are containers for storing data values.

// In C++, there are different types of variables (defined with different keywords), for example:

// int - stores integers (whole numbers), without decimals, such as 123 or -123
// double - stores floating point numbers, with decimals, such as 19.99 or -19.99
// char - stores single characters, such as 'a' or 'B'. Char values are surrounded by single quotes
// string - stores text, such as "Hello World". String values are surrounded by double quotes
// bool - stores values with two states: true or false
// Syntax: type variable = value;