Chapter 2, Problem 4PP

(a)

Program Plan Intro

Program plan:

In the coding window, write the necessary code:

• Declaring four int variables a=1, d=1, n=100 and sum.
• To calculate the sum of integers from 1 to 100.
• To display the calculated sum to user.

Program description:

The main purpose of the program is to calculate the sum of integers from 1 to 100. In the main method, calculating the sum of integers from 1 to 100 and finally, displaying the output, total sum of integers from 1 to 100 to user.

(b)

Program Plan Intro

To verify the results produced by above program and then using the above program to calculate sum of integers from 100 to 1000, with a=100, d=1and n=1000.