基础注释

Java的注释非常重要

public class dong01 {
    public static void main(String[]args) {

        //大小写十分敏感
        String Wan= "hun";
        String wan= "hun";

        String  AHolle ="hun";
        String  aHolle ="hun";
        String  $Holle ="hun";
        //String  _AHolle ="hun";

        System.out.println(Wan==wan);

        System.out.println(AHolle);
        System.out.println(aHolle);
        System.out.println($Holle);


    }

}