Overview:
This hands-on lab allows you to follow and experiment with the critical steps of developing a program including the program description, Analysis, , Design(program design, pseudocode), Test Plan, and implementation with C code. The example provided uses sequential, repetition statements and nested repetition statements.
Program Description:
This program will calculate the average of 10 positive integers. The program will ask the user to 10 integers. If any of the values entered is negative, a message will be displayed asking the user to enter a value greater than 0. The program will use a loop to input the data.
Analysis:
I will use sequential, selection and repetition programming statements.
The program will loop for 10 positive numbers, prompting the user to enter a number.
I will define three integer variables: count, value and sum. count will store how many times values greater than 0 are entered. value will store the input. Sum will store the sum of all 10 integers.
I will define one double number: avg. avg will store the average of the ten positive integers input.
The sum will be calculated by this formula: sum = sum + value For example, if the first value entered was 4 and second was 10: sum = sum + value = 0 + 4
sum = 4 + 10 = 14
Values and sum can be input and calculated within a repetition loop: while count <10
Input value
sum = sum + value End while
Avg can be calculated by: avg = value/count
A selection statement can be used inside the loop to make sure the input value is positive.
If value = 0 then count = count + 1 sum = sum + value
Else
input value End If
