import javax.swing.JOptionPane;

/* Write a program that converts a number entered in Roman numerals to decimal. Your program should consists
 * of a class, say Roman. An objects of the types Roman should do the following:
 * a) store the number as Roman numeral
 *  Convert and store the number into decimal
 * c) print the number as a Roman numeral or decimal number as requested by the user
 * 
 * The decimal values of the Roman numerals are 
 * M 1000
 * D 500
 * C 100
 * L 50 
 * X 10
 * V 5
 * I 1
 * 
 * d) test your program using the following Roman numerals: MCXIV, CCCLIX and MDCLXVI
 * 
 */
public class Roman {
	static String romanNumeral;
	static int decimalNum;
	static char convertToDecimal;

	public static void main(String args[]) {
		Roman demo = new Roman();
		demo.convertToDecimal(decimalNum);
		printRoman(romanNumeral);
		printDecimal(decimalNum);
		setRoman();
		toString(romanNumeral);
	} 

	public void convertToDecimal (int other) {
		romanNumeral = JOptionPane.showInputDialog("Enter a Roman numeral to convert to decimal." + "\n\n"+ "Note: Roman numerals are I, V, X, L, C, D and M."+ "\n" + "All letters entered will be treated as capitalized.");
		romanNumeral = romanNumeral.toUpperCase();

		int x = 0;

		do
		{
			convertToDecimal = romanNumeral.charAt(x); //return a char value from the first character in the string
			switch(convertToDecimal)
			{
			case 'M':
				decimalNum += 1000;
				break;

			case 'D':
				decimalNum += 500;
				break;

			case 'C':
				decimalNum += 100;
				break;

			case 'L':
				decimalNum += 50;
				break;

			case 'X':
				decimalNum += 10;
				break;

			case 'V':
				decimalNum += 5;
				break;

			case 'I':
				decimalNum += 1;
				break;
			}

			x++;
		}while(x<romanNumeral.length()); 

//		make a condition here...
		JOptionPane.showMessageDialog(null, "Roman Numeral Converted to Decimal is: " + decimalNum);// + ch, 
//		other=decimalNum.getCopy;
	}

	public static void printRoman (String romanNumeral){
		System.out.println ("Roman Numeral stored is: " + romanNumeral);
	}

	public static void printDecimal (int decimalNum){
		System.out.println ("Decimal Number stored is: " + decimalNum); 
	}

	public static void setRoman (){
		System.out.println("test Set Roman");
	}

//	public boolean equals (String romanNumeral, int decimalNum ){
//	return (romanNumeral == decimalNum);
//	}

	public void Other(String temp) {
		temp = "";
	}

	public Roman getCopy(int decimalNum) {
		Roman temp = new Roman();
		Roman.decimalNum = decimalNum;

		System.out.println(" temp is: " + temp);
		return temp;
	}

	public static String toString(String str) {
//		str = "test";
		if (str==romanNumeral)
			System.out.println("Roman numeral " + romanNumeral + " is equal to Decimal Number " + decimalNum);
		else
			System.out.println("Roman numeral " + romanNumeral + " is not equal to Decimal Number " + str);

		return str;
	}
}