Download CSE1322L Assignment 8: Recursive Number and IP Address Conversion and more Study notes Number Theory in PDF only on Docsity!
CSE1322L Assignment 8
Background:
Topics
- Recursion
- IP Address: https://www.youtube.com/watch?v=7_-qWlvQQtY
- MAC Address: https://www.youtube.com/watch?v=mLYsPgeHFu
- Decimal/Binary Conversion: https://www.youtube.com/watch?v=sBmNIQRVOQg https://www.binaryhexconverter.com/decimal-to-binary-converter
- Decimal/Hexadecimal Conversion: https://www.youtube.com/watch?v=u2ZkTdz8tcI https://www.binaryhexconverter.com/decimal-to-hex-converter
- String Functions (split)
- One-dimensional Arrays
- Division/Modulus Operators
Definitions IP Address – In general, an IP (Internet Protocol) address is a unique identifier assigned to each device (computer, phone, printer, TV, etc.) connected to the internet. The format of an IP address is 192.168.25.140 (decimal) or 11000000.10101000.00011001.10001100 (binary)
MAC Address – In general, a MAC (Media Access Control) address is a unique identifier assigned to each device (computer, phone, printer, TV, etc.) connected to a local network, i.e. your home’s computer network. The format of a MAC address is 26:107:188:269:192:13 (decimal) or 1A:6B:BC:10D:C0:D (hexadecimal).
Description For this assignment, you will implement a number conversion system, which does decimal-to-binary and decimal-to-hexadecimal conversions for numbers, IP addresses, and MAC addresses.
Although we link to videos (about 3 minutes each) to help you understand IP and MAC addresses, detail knowledge of these topics is not needed to complete this assignment. We simply use the IP and MAC address formats as a basis for the assignment.
That is, you will convert the digits in IP and MAC addresses from decimal to binary and from decimal to hexadecimal while maintaining the IP and MAC address formats.
The steps to do the conversions are repetitive and are ideal for recursive programming techniques. So you will need to know how to do the conversions, and videos (about 3 minutes each) are provided to instruct you on how to do these.
Your task:
In the driver class, create the following main method and four (4) recursive methods:
- Create a recursive method, decimal2Binary , which:
- takes one parameter of type integer (i.e. 25)
- returns one string value, which represents the converted binary value (i.e. 11001) (note: leading zero’s on the left side of binary values are not included, i.e. 00011001 is represented as 11001)
- calls decimal2Binary recursively to convert the integer parameter into its binary equivalent (Note: The decimal2Binary method must use recursion. No loops, global variables, or stack access allowed. Otherwise, per the grading rubric, significant points will be deducted.)
- Create a recursive method, decimal2Hexadecimal , which:
- takes one parameter of type integer (i.e. 188)
- returns one string value, which represents the converted hexadecimal value (i.e. BC)
- calls decimal2Hexadecimal recursively to convert the integer parameter into its hexadecimal equivalent (Note: The decimal2Hexadecimal method must use recursion. No loops, global variables, or stack access allowed. Otherwise, per the grading rubric, significant points will be deducted.)
- Hint: you may want to use a “nested if statement” or “switch/case statement” when addressing hexadecimal digits A, B, C, D, E, F.
- Create a recursive method, convertIpAddress , which:
- takes one parameter of type array of strings (i.e. string[]), which holds the four (4) decimal numbers of the IP address, with periods removed (i.e. 192 168 25 140)
- takes one parameter of type integer, which represents the array index
- returns one string value, which represents the converted binary IP address, with periods included (i.e. 11000000.10101000.11001.10001100)
- calls convertIpAddress recursively to process each part of the binary IP address
- If the user enters 4, prompts the user and inputs a decimal MAC address, removes colons from the MAC address, invokes convertMacAddress method, and displays results
- If the user enters 5, terminates the program
- If the user enters any character other than a 1, 2, 3, 4, or 5, displays the following error message: Error: Please enter valid input, and allows the user to reenter a valid choice.
Sample Output:
1 – Convert Decimal Number to Binary Number 2 – Convert Decimal Number to Hexadecimal Number 3 – Convert Decimal IP Address to Binary IP Address 4 – Convert Decimal MAC Address to Hexadecimal MAC Address 5 – Exit
Enter Choice: 9
Error: Please Enter Valid Input
1 – Convert Decimal Number to Binary Number 2 – Convert Decimal Number to Hexadecimal Number 3 – Convert Decimal IP Address to Binary IP Address 4 – Convert Decimal MAC Address to Hexadecimal MAC Address 5 – Exit
Enter Choice: 1
Enter Decimal Integer: 64 Decimal Number: 64 Binary Number: 1000000
1 – Convert Decimal Number to Binary Number 2 – Convert Decimal Number to Hexadecimal Number 3 – Convert Decimal IP Address to Binary IP Address 4 – Convert Decimal MAC Address to Hexadecimal MAC Address 5 – Exit
Enter Choice: 2
Enter Decimal Integer: 207 Decimal Number: 207 Binary Number: CF
1 – Convert Decimal Number to Binary Number 2 – Convert Decimal Number to Hexadecimal Number 3 – Convert Decimal IP Address to Binary IP Address 4 – Convert Decimal MAC Address to Hexadecimal MAC Address 5 – Exit
Enter Choice: 3
Enter Decimal IP Address (i.e. 192.168.35.10): 192.168.25. Decimal IP Address: 192.168.25. Binary IP Address: 11000000.10101000.11001.
1 – Convert Decimal Number to Binary Number 2 – Convert Decimal Number to Hexadecimal Number 3 – Convert Decimal IP Address to Binary IP Address 4 – Convert Decimal MAC Address to Hexadecimal MAC Address 5 – Exit
Enter Choice: 4
Enter Decimal MAC Address (i.e. 203:65:157:93:13:7): 26:107:188:269:192: Decimal MAC Address: 26:107:188:269:192: Hexadecimal MAC Address: 1A:6B:BC:10D:C0:D
1 – Convert Decimal Number to Binary Number 2 – Convert Decimal Number to Hexadecimal Number 3 – Convert Decimal IP Address to Binary IP Address 4 – Convert Decimal MAC Address to Hexadecimal MAC Address 5 – Exit
Enter Choice: 5
● Includes main method (total points 20)
- presents menu and reads in user choice (4 point)
- provides error message for invalid user input (4 points)
- presents user with second prompt and reads in detail information (i.e. decimal numbers, IP addresses, MAC addresses) (4 point)
- allows user to reenter choice in case of invalid user input (4 points)
- invokes correct method based on user choice (4 points)
