c 2b 2b variable

1Variable is simply a name or a label given to a memory location. 

1std::string str = "text";	// stores a string
2int    foo = 3;				// stores any integer
3float  bar = 3.14;			// stores 32 bit number
4double baz = 3.14159265;	// stores 64 bit number

1#include <iostream>
2using namespace std;
3int main(){
4	
5int number = 1;              
6double decimal = 6.9;    
7char characterx = 'i';   
8string text ="Sup";     
9bool boolean = true;      
10
11return 0;
12}

1#include <iostream>
2
3using namespace std
4  
5int main{
6	int x = 3;
7    float g = 4.0;
8    long h = 1234567;
9    double j = 1237886.099;
10    cout<<x<<endl;
11    cout<<h<<endl;
12    cout<<g<<endl;
13    cout<<j<<endl;
14}

1Create a variable called myNum of type int and assign it the value 15:
2  int myNum = 15;
3cout << myNum; 

1#include <iostream>
2using namespace std;
3
4int main() {
5// To define variables in C++, you have to specify the data type. Example:
6int number = 10; // Declares a variable with the integer data type.
7float decimal = 3.5;  // Declares a variable with the float data type.
8double decimalNum = 3.3333; // Doubles are used for more specific points in floats.
9string text = "Hello World";  // Declares a variable with the string data type.
10bool result = true;  // Declares a variable with the boolean data type.
11  
12}