JavaMadeSoEasy.com: Set Custom implementation in java - How HashSet works internally with diagrams and full program

JavaMadeSoEasy.com: Set Custom implementation in java - How HashSet works internally with diagrams and full program

Let's find out answer of few very important questions before proceeding >

Q1. How HashSet implements hashing?

A. Method internally uses HashMap's hash method for hasihng.

Q2. How add method works internally?

A. public void add(E value){

          hashMapCustom.put(value, null);

}

      Method internally uses HashMap's put method for storing object.

Q3. How contains method works internally?

A. public boolean contains(E obj){

          return hashMapCustom.contains(obj) !=null ? true :false;

}

     Method internally uses HashMap's contains method for storing object.

Q4. How remove method works internally?

A. public boolean remove(E obj){

      return hashMapCustom.remove(obj);

}    

       Method internally uses HashMap's put remove for storing object.

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