Write a program that converts a decimal number to Roman number. Decimal Number is accepted as command line input at the time of execution.?

Answer 1

import java.io.* ;

public class Roman

{

public static void main(String[] args)throws IOException

{

InputStreamReader reader = new InputStreamReader(System.in) ;

BufferedReader br = new BufferedReader (reader) ;

System.out.print("Enter any decimal number between 1 and 59 : ") ;

int n = Integer.parseInt(br.readLine()) ;

String c[] = {"I","II","III","IV","V","VI","VII","VIII","IX","X","L"} ;

String s = "" ;

int t ;

if(n <= 10)

System.out.println("The number '"+n+"' in ROMAN notation is '"+(c[n-1])+"'") ;

else if(n > 10 && n <= 59)

{

int y = n/10 ;

int r = n%10 ;

if(y 0)

s = s+c[10] ;

}

else

{

if(r!=0)

s = s+c[r-1] ;

}

System.out.println("The number '"+n+"' in ROMAN notation is '"+s+"'") ;

}

else

System.out.println("!! FATAL ERROR !! [ No. Greater than 59 ] ") ;

}

}