Question

Write a main application called Project1.java, and a GUI (that extends JFrame) called RomanNumeralGUI.java. The main program should open a file called "input.txt" which will contain Roman numerals. There may be more than one Roman numeral on a line, and they will be separated by commas.

The GUI should have a grid layout of one row and two columns (column 0 and 1). Column 0 should contain each individual Roman numeral from the file. Column 1 should have corresponding lines that give the Arabic value of the Roman numeral. For example, if the input file contains
IX
MMXXIII,VII
Then the content pane of the GUI should contain
IX 9
MMXXIII 2023
VII 7
The core of this project is the conversion of a Roman numeral to an Arabic numeral. It is suggested you write this method first and test it. Let’s call it valueOf which, when given a String representing a Roman numeral will return an int for its integer Arabic value. That is, valueOf("VII") returns 7.

Answer 1

The subject of this question is Computers and Technology. The task is to create a main application and GUI to convert Roman numerals to Arabic numerals.

Step-by-step explanation:

The subject of this question is Computers and Technology. The task is to create a main application called Project1.java and a GUI called RomanNumeralGUI.java. The main program should open a file named "input.txt" containing Roman numerals, which are separated by commas. The GUI should display the Roman numerals in column 0 and their corresponding Arabic values in column 1.

To accomplish this, you need to implement a method called valueOf() that converts a Roman numeral to an Arabic numeral. You can test this method before implementing the rest of the program. For example, valueOf("VII") should return 7.