“for” condition:

The “for” condition is used to repeat the particular block until some end condition is met.

Syntax:

for (init; condition; increment)

{

//statement

}

Here, “init” is allow the user to declare and initialize any loop control variables. The “condition” is evaluated and “increment” is used to increment the values of the variable.

Program:

Consider the five programs presented in the given chapter.

Program 4.1:

The following program will calculate the eighth triangular number:

//include the header file

#include <stdio.h>

//definition of main method

int main (void)

{

/*declare a variable*/

int triangularNumber;

//calculate the "triangularNumber"

triangularNumber = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8;

//display the result

printf ("The eighth triangular number is %i\n", triangularNumber);

//return statement

return 0;

}

Explanation:

In the above program, declare the variable and calculate the eighth triangular number. Then display the values using “printf” function on the output screen.

Sample Output for program 4.1:

The eighth triangular number is 36