Explanation of Solution
Primitive data type:
Primitive data types are pre-defined data types, which can be used directly by the programmers to declare the variables.
Some of the primitive data types available in C++
Integer:
- Integer is one of the predefined data types. The keyword used for declaring integer data type is “int”.
- It takes up to 4 bytes of memory space to store data. It ranges from -147483648 to 2147483647.
- Example for declaring integer data type is as follows:
- int variable1 = 10;
Floating point:
- Floating point is a predefined data type. The keyword used for declaring floating point is “float”.
- It takes up to 4 bytes of memory space to store data. It ranges from +/- 3.4e +/- 38.
- Example for declaring floating point data type is as follows:
- float variable1 = 10.3;
Character:
- Character is a predefined data type. The keyword used for declaring character data type is “char”.
- It takes 1 byte of memory space to store data. It ranges from -127 to 127 or 0 to 255
- Example for declaring character data type is as follows:
- char variable1 = 'a';
Boolean:
- Boolean is a predefined data type. The keyword used for declaring Boolean data type is “bool”. It stores data in the form of “true” or “false”.
- Example for declaring Boolean data type is as follows:
- bool variable1 = true;
Double Floating point:
- Double Floating point is a predefined data type. The keyword used for declaring double is “double”.
- It takes up to 8 bytes of memory space to store data. It ranges from +/- 1.7e +/- 308
- Example for declaring double data type is as follows:
- double variable1 = 11.34;
Void:
- Void represents null value. The keyword used for void is “void”.
Wide Character:
- Wide Character is a predefined data type. The keyword used for declaring wide character is “wchar_t”.
Example:
The below program demonstrates the usage of primitive data type “integer”:
//Include the header files
#include<iostream>
using namespace std;
//Main function
int main()
{
//Variable declaration
int i, n = 5;
//for loop to print 1 to 5
for (i = 1; i <= n; i++)
{
//print the value of “i”
cout << i << "\n";
}
//Print a new line
cout << "\n";
//Return the value 0
return 0;
}
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