Answer :
Answer:
//import the Scanner class to enable user's input
import java.util.Scanner;
// Declare the class header with RomanNumerals as name
public class RomanNumerals {
// Declare the main method where execution begins
public static void main(String[] args) {
//Instantiate an object of the Scanner class to allow user's to enter the number
Scanner userinputscan = new Scanner(System.in);
//Display a message to prompt the user to enter a number
System.out.println("Enter a number in the range of 1 - 10");
//Receive the number from the user and store in an int variable
int usernumber = userinputscan.nextInt();
//Start the switch statement using the usernumber
switch (usernumber) {
//Check if the number is 1
//Display I
//Then break out of the switch statement
case 1 :
System.out.println("I");
break;
//If the number is 2
//Display II
//Then break out of the switch statement
case 2 :
System.out.println("II");
break;
//If the number is 3
//Display III
//Then break
case 3:
System.out.println("III");
break;
//If the number is 4
//Display IV
//Then break
case 4:
System.out.println("IV");
break;
//If the number is 5
//Display V
//Then break
case 5:
System.out.println("V");
break;
//If the number is 6
//Display VI
//Then break
case 6:
System.out.println("VI");
break;
//If the number is 7
//Display VII
//Then break
case 7:
System.out.println("VII");
break;
//If the number is 8
//Display VIII
//Then break
case 8:
System.out.println("VIII");
break;
//If the number is 9
//Display IX
//Then break
case 9:
System.out.println("IX");
break;
//If the number is 10
//Display X
//Then break
case 10:
System.out.println("X");
break;
//If the number is out of range [That is the default case]
//Display an error message.
default:
System.out.println("Error: The number is not within range");
break;
} //End of switch statement
} // End of main method
} // End of class declaration
Explanation:
The above code has comments explaining every part of the code. Please go through the comments.
The actual code has been written in bold face to distinguish it from comments.
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Sample Output 1:
>> Enter a number in the range of 1 - 10
45
>> Error: The number is not within range
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Sample Output 2:
>> Enter a number in the range of 1 - 10
8
>> VIII