New to Java

Hi. I am getting an error "cannot find symbol method CharAt(Int)" and "cannot find symbol method IsDigit(Char)". What am I doing wrong?

boolean itdigit; int i; char current; int strlen;

strlen = args[0].length();
			
			while (i < strlen) {
				current = args[0].CharAt(i);
				itdigit = Character.IsDigit(current);
			}
			if (itdigit == false) {
				System.out.println("Only numbers please.");
			}
			else {

Much love,
SD.

Edited by: SilentDragoon on Jan 24, 2008 11:54 AM