Unit 3 [IT213: Software Development Concepts] Unit 3 Assignment Instructions In this unit you will complete the coding exercises before starting the Coding Project. Review the detailed instructions and rubrics before starting your Assignments. Submission Instructions You will submit the following: .cs files for C# .java files for Java .php and/or .js files for Web Development Additionally, in a Word document, paste a screenshot of the output for each exercise. You will be submitting three code files, one for each exercise (.cs, .java, .php or .js) and one Word document in a zipped folder. Zip these four files into a zipped folder and submit the one zipped folder. Naming Your Files and Zip Folder The code files should be saved as: IT213_YourLastName_UnitX_ExerciseX_Language. The word document should be saved as: IT213_YourLastName_UnitX_Screenshots The zip folder should be saved as: IT213_YourLastName_UnitX_ZIP Unit 3 Assignment: Coding Exercises You must complete the following coding exercises before starting the two Coding Projects. By completing these exercises you will be better prepared for the Assignment. Note: If your language of choice is Web Development, you will need to complete the exercises in both PHP and JavaScript. 3-1. Class Grade Average The following code is shown for Java, C#, and JavaScript. For the language of your choice, type in the following code and run it." Java Unit 3 [IT213: Software Development Concepts] // GradeBook class that solves class-average problem using // counter-controlled repetition. import java.util.Scanner; // program uses class Scanner public class GradeBook { public static void main(String[] args){ determineClassAverage(); } // determine class average based on 10 grades entered by user public static void determineClassAverage() { // create Scanner to obtain input from command window Scanner input = new Scanner( System.in ); int total; // sum of grades entered by user int gradeCounter; // number of the grade to be entered next int grade; // grade value entered by user int average; // average of grades // initialization phase total = 0; // initialize total gradeCounter = 1; // initialize loop counter // processing phase uses counter-controlled repetition Unit 3 [IT213: Software Development Concepts] while ( gradeCounter <= 10 ) // loop 10 times { System.out.print( "Enter grade: " ); // prompt grade = input.nextInt(); // input next grade total = total + grade; // add grade to total gradeCounter = gradeCounter + 1; // increment counter by 1 } // end while // termination phase average = total / 10; // integer division yields integer result // display total and average of grades System.out.printf( "\nTotal of all 10 grades is %d\n", total ); System.out.printf( "Class average is %d\n", average ); } // end method determineClassAverage } C# using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Sample { class GradeBook { static void Main(string[] args) { DetermineClassAverage(); } Unit 3 [IT213: Software Development Concepts] public static void DetermineClassAverage() { int total; // sum of the grades entered by user int gradeCounter; // number of the grade to be entered next int grade; // grade value entered by the user int average; // average of the grades // initialization phase total = 0; // initialize the total gradeCounter = 1; // initialize the loop counter // processing phase while (gradeCounter <= 10) // loop 10 times { Console.Write("Enter grade: "); // prompt the user grade = Convert.ToInt32(Console.ReadLine()); // read grade total = total + grade; // add the grade to total gradeCounter = gradeCounter + 1; // increment the counter by 1 } // end while // termination phase average = total / 10; // integer division yields integer result // display total and average of grades Console.WriteLine("\nTotal of all 10 grades is {0}", total); Console.WriteLine("Class average is {0}", average); Console.ReadKey(); } // end method DetermineClassAverage } // end class GradeBook } //End of Program JavaScript

Class Average Program

Unit 3 [IT213: Software Development Concepts]

Enter Grades

Enter Grades 3-2. Write a program called SumAndAverage to produce the sum of the numbers 1 through 100. Use a for loop for this program. Also, compute and display the average. EXPECTED OUTPUT The sum is 5050 The average is 50.5 3-3. Modify the code created for Exercise 3-2 to use a while loop instead of a for loop. EXPECTED OUTPUT The sum is 5050 Unit 3 [IT213: Software Development Concepts] The average is 50. Unit 3 Assignment: Coding Exercises Exercise Criteria Possible Earned Exercise 1 completed correctly 0-5 Exercise 2 completed correctly 0-5 Exercise 3 completed correctly 0-5 Total 0-15 Unit 3 Assignment 2: Coding Project Using the language you have chosen to focus on: C#, Java, Web Development languages (PHP and JavaScript), please complete the following two Assignments, Using while-loops, create an example of a nested loop. The outer loop will count from 5 to 1. The inner loop will count from 0 to 10 by 2. Use the variable k for the outer loop counter and the variable i for the inner loop counter. Print out the index value for both k and i as the program executes through each loop. Expected Output: k = 5 i = 0 k = 5 i = 2 k = 5 i = 4 k = 5 i = 6 k = 5 i = 8 k = 5 i = 10 k = 4 i = 0 k = 4 i = 2 k = 4 i = 4 Unit 3 [IT213: Software Development Concepts] k = 4 i = 6 k = 4 i = 8 k = 4 i = 10 k = 3 i = 0 k = 3 i = 2 k = 3 i = 4 k = 3 i = 6 k = 3 i = 8 k = 3 i = 10 k = 2 i = 0 k = 2 i = 2 k = 2 i = 4 k = 2 i = 6 k = 2 i = 8 k = 2 i = 10 k = 1 i = 0 k = 1 i = 2 k = 1 i = 4 k = 1 i = 6 k = 1 i = 8 k = 1 i = 10 Unit 3 Assignment 2: Coding Project Rubric Criteria Points Possible Points Earned Unit 3 [IT213: Software Development Concepts] Student names the variables correctly according to Assignment instructions. 0-5 Student uses appropriate variable for the inner and outer loop according to Assignment instructions. 0-5 Student uses appropriate count values for outer loop. 0-5 Student uses appropriate count values for inner loop. 0-5 Student correctly implements two while loops in a nested loop format. 0-5 Program produces correct output. 0-5 Total 0-30 Unit 3 Assignment 3: Coding Project Using a for-loop, write code that will countdown from 9 to 0, displaying the countdown number on the screen with the associated count variable named “i”, and then print to the screen "These are the integers in the decimal system!" after it prints the number 0. Expected Output: i= 9 i= 8 i= 7 i= 6 i= 5 i= 4 i= 3 i= 2 i= 1 Unit 3 [IT213: Software Development Concepts] i = 0 These are the digits in the decimal system! Unit 3 Assignment 3: Coding Project Rubric Criteria Points Possible Earned Student uses correct variable types. 0-5 Student correctly names the counter variable according to Assignment instructions. 0-5 Student uses correct increment/decrement. 0-5 Student correctly implements a for loop. Variable are declared correctly and correct values used. Correct increment used. 0-5 0-5 Program produces correct output. 0-5 Total 0-30

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