CS 165 02 Final Project Due Tuesday, December 12 318521

CS 165 02 Final Project 50 Points Due: Tuesday, December 12, 2017 no later than 1:00pm Part 1: In your program, write a method that accepts a positive integer and returns true if the number is a prime number and false otherwise. Note that 2 is the only even prime number. An odd integer is prime if it not divisible by any odd integer less than or equal to the square root of the number. Part2: A prime number whose reversal is also a prime number is called emirp. For example, 11, 13, 79 and 359 are emirps.

Write a program that outputs to a ListBox the first 100 emirps. Your program must contain the method from Part 1 that returns true if a number is prime; false otherwise and another method that returns the reversal of a positive number. You can reverse the integer in the following way: · Convert the integer into a string value = num.ToString(); · Use the following code to reverse the integer string newNum = “”; for (int l = value.Length; l > 0; l--) newNum = newNum + value[l-1]; Also, your program should have a TextBox that will accept a positive integer from the user and then display whether the positive integer if an emirp. Add the following comments to the beginning of the program. Name: Your Name Class and Section: CS 165 02 Assignment: Final Project Due Date: See above Date Turned in: Program Description: You write a short description of what the program will do When you complete the program, do the following. 1. Turn in a printout of the source code with this sheet attached to the front 2. Create a folder with the following name: FinalProject 3. Copy your project to this folder 4. Copy the folder to the following location: I:\kopp\inbox\CS 165 02\ your name where your name is a folder located in I:\kopp\inbox\CS 165 02. Extra Credit: 10 Points In addition to using a ListBox for the output of the 100 emirps, also write these values to an output file. Add this as a method. You should use the values from the ListBox as output to the file.

Paper For Above instruction

The provided assignment encompasses developing a Windows-based application that incorporates fundamental programming concepts such as prime number verification, number reversal, and list management within a user interface. The goal is to identify and display the first 100 emirp numbers—primes that remain prime when their digits are reversed—and facilitate user interaction through input and output controls, specifically a TextBox and a ListBox. An optional enhancement involves exporting the list of emirps to an external file, adding robustness and utility to the application.

At its core, the program must implement a method to determine if a number is prime. This involves checking divisibility by other numbers, recognizing that 2 is the only even prime, and applying an optimization by testing divisions up to the square root of the number. A secondary method reverses the digits of a positive integer through string manipulation, which is crucial for identifying emirps—prime numbers whose reversal is also prime.

The main interface displays the first 100 emirps in a ListBox, which provides a visual and scrollable list to the user. Additionally, a TextBox accepts user input to check whether a specified positive integer qualifies as an emirp, based on the primality of both the number and its reverse. This interactive feature enhances user engagement and demonstrates practical applications of the methods developed.

The program’s structure includes clear comments at the beginning, documenting the author, class, assignment details, and a brief description. This documentation facilitates understanding and maintains adherence to academic standards. When perfected, the code must be printed and submitted along with a designated folder containing the project files, fulfilling submission requirements.

The extra credit component involves writing the list of emirps to an external file, which requires creating a dedicated method to handle file output. This task not only improves file handling skills but also illustrates data persistence, a key concept in software development.

This project combines logic, control flow, string manipulation, user interface design, and file I/O operations. Mastery of these elements demonstrates a comprehensive understanding of programming fundamentals necessary for software development and problem-solving within a Windows Forms environment.

References

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