It has to run and compile in Netbeans. OO Design and OO Implement in JAVA an app

Question

It has to run and compile in Netbeans.


OO Design and OO Implement in JAVA an application that converts a number entered in Roman numerals to decimal form. Your application should consist of a class, romanType. An object of romanType should do the following:
a. Store the number as a Roman numeral.
b. Convert and store the number into decimal form.
c. Print the number as a Roman numeral or decimal number as requested by the user.
Write two separate functions— one to print the number as a Roman numeral and the other to print the number as a decimal number.
The decimal values of the Roman numerals are:
M 1000
D 500
C 100
L 50
X 10
V 5
I 1
Remember, a larger numeral preceding a smaller numeral means addition, so LX is 60. A smaller numeral preceding a larger numeral means subtraction, so XL is 40. Any place in a decimal number, such as the 1s place, the 10s place, and so on, requires from zero to four Roman numerals.
Test your program using the following Roman numerals: MCXIV, CCCLIX, and MDCLXVI.


2. Develop, TDD Style, a test plan for romanType class using NetBeans JUNIT
3. OO Implement the application in JAVA.

Explanation / Answer

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import java.util.*;
public class RomanDriver
{public static void main(String[] args)
    { Scanner in=new Scanner(System.in);
    String input;
    char again='Y';
    while(again=='Y')
    {System.out.print("Enter a roman number: ");
    input=in.nextLine();
    romanType r=new romanType(input);
    System.out.print("Enter I to print as integer, R to print as Roman: ");
    if(Character.toUpperCase(in.next().charAt(0))=='I')
         decimal(r);
    else
         roman(r);
    System.out.print("Do you have another number(Y/N)? ");
    again=Character.toUpperCase(in.next().charAt(0));
    in.nextLine();
    }
   
   
         }
public static void decimal(romanType r)
{System.out.println("Your number in decimal is "+r.getDecimal());
}
public static void roman(romanType r)
{System.out.println("Your number in roman is "+r.getromanType());
}

}

--------------------------------

public class romanType
{private String roman;
private int decimal;
public romanType(String r)
    {int i,prev=1000;
    roman=r;
    decimal=0;
    for(i=0;i<r.length();i++)
          {switch(r.charAt(i))
             {case 'm':
                case 'M': decimal+=1000;
                         if(prev<1000)
                              decimal-=(2*prev);
                          prev=1000;
                          break;
                case 'd':               
             case 'D': decimal+=500;
                         if(prev<500)
                              decimal-=(2*prev);
                          prev=500;
                          break;
                case 'c':               
             case 'C': decimal+=100;
                         if(prev<100)
                              decimal-=(2*prev);
                          prev=100;
                          break;
            case 'l':
             case 'L':decimal+=50;
                         if(prev<50)
                              decimal-=(2*prev);
                          prev=50;
                          break;
                case 'x':               
             case 'X': decimal+=10;
                         if(prev<10)
                              decimal-=(2*prev);
                          prev=10;
                          break;
                case 'v':               
             case 'V': decimal+=5;
                         if(prev<5)
                              decimal-=(2*prev);
                          prev=5;
                          break;
                case 'i':               
             case 'I': decimal++;
                      prev=1;
             }
         }
}

    public int getDecimal()
    {return decimal;
         }

    public String getromanType()
    {return roman;
         }
}

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