/* We didn't talk about this yet in class, but this 
   is a multi line comment. Comments are to describe
   your code to other programmers reading your code.
   All comments will be ignored by the compiler.
*/
// And this is a single line comment.
public class Hello {
    public static void main(String[] args) {
        System.out.println("Hello world!");
        System.out.println("This is a second line!!");
        System.out.println();
        System.out.println("This is a \"fourth\" line");
        System.out.println("A backslash: \\");
    }
}