Question

Program Info: Write a program that accepts a year written as a four-digit Arabic (ordinary) numeral and outputs the year written in Roman numerals. Important Roman numerals are V for 5, X for 10, L for 50, C for 100, D for 500, and M for 1,000. Recall that some numbers are formed by using a kind of subtraction of one Roman “digit”; for example, IV is 4 produced as V minus I, XL is 40, CM is 900, and so on. A few sample years: MCM is 1900, MCML is 1950, MCMLX is 1960, MCMXL is 1940, MCMLXXXIX is 1989. Assume the year is between 1000 and 3000. Your program should include a loop that lets the user repeat this calculation until the user says she or he is done.

DO not simply copy and paste other solutions from chegg or look for the solution within the textbook, don't use any advanced terminology to code this program. Use only basic sytax, loops and if else statements are allowed. Use the switch statement if possible.

Do this and automatically receive a thumbs up!

Answer 1

import java.util.Scanner;

class Main

{

String Roman_Conversion(int num)

{

String res=""; //varaible declaration

int i,j,tp;

int arr[]={1000,900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};

String romsys[]={"M","CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"};

for(j=0; j<arr.length; j++)

{

tp=num/arr[j]; //converting it to Roman

for(i=1; i<=tp; i++)

{

res=res + romsys[j];

}

num=num%arr[j];

}

return res; //returning the roman year value

}

public static void main(String args[])

{

Main obj=new Main(); //object of the class

Scanner sc=new Scanner(System.in);

String s; //variable declaration

int ch,yr;

do

{

System.out.println();

System.out.println("Roman_Conversion");

System.out.println("Enter the year");

yr=sc.nextInt(); //accepting input from user

s=obj.Roman_Conversion(yr);

System.out.println("Roman Year : "+s);

System.out.println("Do you want to continue?");

System.out.println("1.Yes");

System.out.println("2.No");

System.out.println("Enter your choice");

ch=sc.nextInt();

}while(ch!=2);

}

}

OUTPUT

Roman Conversion nter the year 1950 Roman Year : MCML Do vou want to continue? 1 . Yes 2.No Enter vour choice Roman Conversion nter the year 1989 Roman Year : MCMLXXXIX Do vou want to continue? 1 . Yes 2.No Enter vour choice Roman Conversion Enter the vear 2019 Roman Year MMXIX Do vou want to continue? 1 . Yes 2.No Enter vour choice 2