Почему мой вывод ложен в большинстве программ на java?

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<code begins>   public class Welcome{
                public static void main(String args[]){
                Hello h1=new Hello("Hello");
                Hello h2=new Hello("Hello");
                System.out.println(h1.equals("Hello"));
                }
                }
                class Hello{
                String name;
                Hello(String name){
                this.name=name;
                }
                public boolean equals(Hello h){
                return this.name==h.name;
                }
                } </code ends>
Output: false 

I apologize for my mistakes. After looking at comments from some members, I found out that I typed the code wrong. I am sorry. I have corrected them.

Hi.'Hello' is a class and h1 and h2 are reference variables of class 'Hello'. I call the constructor of 'Hello' class by using "Hello" String arguments, which invokes the respective constructor. I have two questions.

1> 'this' keyword, how does it know that it is referring to object h1 or h2 that is compared. Is it because I used h1.equals? A little explanation of how 'this' keyword works would be helpful.

2> Even though I pass a String "Hello" in equals and compare, I get the output as false. How is this possible?

Next, I would like to modify the above program a little bit as:

    <code begins> public class Welcome{
                  public static void main(String args[]){
                  String s1=new String("Hello");
                  String s2=new String("Hello");
                  Hello h1=new Hello(s1);
                  Hello h2=new Hello(s2);
                  System.out.println(h1.equals(h2));
                  }
                  }
                  class Hello{
                  String name;
                  Hello(String name){
                  this.name=name;
                  }
                  public boolean equals(Hello h){
                  return this.name==h.name;
                  }
                  } </code ends>
Output: false

Here, how is it false again? Is the reason same as for the above program?

How is output changing when I replace program 2 with the overridden 'equals' method with .equals instead of == as:

<code begins>    public boolean equals(Hello h){
                 return this.name.equals(h.name);
                 } </code ends>
Output: true

What is wrong if I pass Object class reference as this in Program 2:

<code begins>    public boolean equals(Object h){
                 return this.name.equals.(h.name);
                 } </code ends>
Output: Compilation Error

Что я уже пробовал:

Я пробовал выполнять вышеприведенные коды.

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