compare two strings in java using command line arguments

Im a java noob. Basically I am trying to create a program that compares two command line arguments while ignoring case and prints out the lesser of the two strings. Here is what I have so far:

public class CompareStrings
{

   public static void main(String[] args) 
   {
      String s1 = new String(args[0]);
      String s2 = new String(args[1]);

      if ( s1.compareToIgnoreCase(s2) > 0 )
         System.out.println(s2);
      else if ( s1.compareToIgnoreCase(s2) < 0 )
         System.out.println(s1);
      else   

         System.out.println("Both strings are equal.");
   }
}

I keep getting the error

Error: Could not find or load main class CompareString

when I try to run it. What am I doing wrong?

Answer

"Error: Could not find or load main class CompareString"

Your error message says you couldn't load class "CompareString", but your code says your class name is CompareStrings.