Compile Error In Hello Java Program

i wrote this program:

class hellojava
{
public static void main(string[] args)
{
system.out.println("hello java");
}
}

Then i saved this file with name hellojava.java(notepad) in C drive in separate folder c:myjavaapp(not in c:java folder).

When I am compiling(with javac hellojava.java) it shows following error:

cannot find symbol public static void main(string[] args), and also says package system doesnot exists system.out.println("hello java");