/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	
	public enum ServiceSource
{
    NONE(   "no_value"  ),
    URL(    "url"       ),
    FILE(   "file"      );
    ServiceSource(String s){}
    public boolean isURL(){
    	return (URL == this);
    }
}
	
	public static void main (String[] args) throws java.lang.Exception
	{
		ServiceSource one = ServiceSource.URL;
		ServiceSource two = ServiceSource.FILE;
		System.out.println(one.isURL());
		System.out.println(two.isURL());
	}
}