Description
Overview: This project is designed to give students practice with loops and the Java String class, characters, and arithmetic. Your program will take a hexadecimal or binary number string as an input and print out its decimal value. Specification The program will provide a looping menu that invites the user to choose from a menu of number string decoding options. It must provide options to convert hexadecimal and binary into decimal notation for full credit. Proper implementation of a binary to hexadecimal decoding may be added for extra credit:
Decoding Menu
————-
1. Decode hexadecimal
2. Decode binary
3. Convert binary to hexadecimal
4. Quit
Please enter an option: 1
Based on the user’s selection, the program should prompt the user for the appropriate input:
Please enter the numeric string to convert: 0xbadf00d
… and should display the result of the string decoding / encoding:
Result: 195948557
It should then display the menu again. This should repeat until the program is terminated. This project may not make use of existing hexadecimal and/or binary conversion routines built into the Java language and platform; instead, you must do the conversion using your knowledge of binary and hexadecimal numbering systems. However, you may use Java String class methods as well as Math methods. It may be helpful to think of the ASCII values of hexadecimal numbers when working on this project!
Program Methods:
Your program must provide and use the following methods. Each method signature must be match and it must behave as described. Methods should not display anything on the screen!
public static long hexStringDecode(String  hex ) Decodes an entire hexadecimal string and returns its value.
public static short hexCharDecode(char  digit) Decodes a single hexadecimal digit and returns its value.
public static short binaryStringDecode(String binary) Decodes a binary string and returns its value.
public static String binaryToHex (String  binary)*Decodes a binary string, re-encodees it as hexadecimal, and returns the hexadecimal string.
NOTE: It is common to display hexadecimal numbers with ‘0x’ as the prefix (e.g., the number FFFFFFFF is represented as 0xFFFFFFFF. Your program must be able to convert a hexadecimal string into number regardless of whether it is prefixed with ‘0x.’Additionally, it must handle the binary prefix ‘0b’. It is also common for hex numbers to be typed in lowercase (e.g., 0xffffffff); your program must handle upper- and lower-case letters.
Submissions
NOTE: Your output must match the example output *exactly*. If it does not, you will not receive full credit for your submission!
File: NumericConversion.java
Method:Submit on ZyLabs
Do not submit any other files!
Sample Output:
Decoding Menu
————-
1. Decode hexadecimal
2. Decode binary
3. Convert binary to hexadecimal
4. Quit
Please enter an option: 1
Please enter the numeric string to convert: 0x4321
Result: 17185
Decoding Menu
————-
1. Decode hexadecimal
2. Decode binary
3. Convert binary to hexadecimal
4. Quit
Please enter an option: 1
Please enter the numeric string to convert: fFfFfFfF
Result: 4294967295
