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printf("value of area : %d", area);

printf("%c", NEWLINE);

return 0;
}

When the above code is compiled and executed, it produces the following result:

value of area : 50

The const Keyword
You can use const prefix to declare constants with a specific type as follows:

const type variable = value;

The following example explains it in detail:
#include <stdio.h>

int main()
{
const int LENGTH = 10;

const int WIDTH = 5;

const char NEWLINE = '\n';
int area;

area = LENGTH * WIDTH;
printf("value of area : %d", area);

printf("%c", NEWLINE);

return 0;
}

When the above code is compiled and executed, it produces the following result:

value of area : 50

Note that it is a good programming practice to define constants in CAPITALS.

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