New to Java

Hi...i want to print square root on command prompt and a symbol(i don't know what it's name for second symbol). But i get a problem. Below is my code. For what i understand i should use \u221A right? :-

public class Test
{
	public static void main(String[]args)
	{	
		try
		{
			System.out.println("\u221A");
			System.out.println("\u00ea");
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
}

But the result is only question mark...can someone show me the right way and what's wrong to my code. I very appreciate to any help. Thank you.