Java Tutorial For Beginners 35 - HashSet in Java

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[abhishekgandhewar]

As you can see in output:
Insertion order is not maintained in hashset.
We can't keep our order of o/p in hastset as ascending or descending.

[bunkbedmedia]

I really love your video content and it has helped a lot in my first year of university. Thank you.

[The_Real_Living]

Why hasNext() not printing neither alphabetic nor an order? It's printing like
Tom
Mark
July
Patrik
Jack

[sudiptochatterjee]

The HashSet is an implementation of a stack with unique objects. Hence when you use the Iterator to read through the example provided in the video, it shall print in the order of Last In First Out.

When you use the add method and put in a duplicate value, there shall be no compile time or run time error, and neither shall it give errors while trying to access. The add method returns false, if the object is a duplicate.

To remove from the hashset you shall need use name.remove("jack") !

[uksanjay]

ur video are too good and helped in my learning core java.

[dbcarey]

Thank you! Good explanation for a beginner such as myself.

[CamiloMonsalve]

Thank you for this information. How do you print all of elements of this array?

[Chirag-mbyd]

You can use recursion and hasnext to get a hasprevious type iteration

[nikhildakwale]

what exactly is that syso ctrl+shift thing that you do?
How can I do it too?

[premprakash]

Great job done...it helped me a lot. tysm

[rtdhgfgx]

what is the difference between Hashset and List Iterator? both operates the same

[ektelestis]

It doesn' t print the names from top to bottom like the ListIterator... actually it prints:
tom
Mark
july
patrik
jack

[lokeshreddy]

why hasnext() does not have neither alphabetic nor an order?
why is output is in zig zag manner?

[swarnakunchala]

it would be easy if you give some problems to practice.by that we can easily understand the concepts.

[shagunmalik]

why didn't you use List iterator here?

[nadimbaraky]

in a hash set values are not sorted in the order of insertion

[rathindanton]

Hashset doesn't arranges in ascending order using hash next condition check out and rectify bro

[totalsyambles]

Please Help! When I type in: HashSet<String> name = new HashSet<String>(); it says "HashSet is not generic, it cannot be parameterised with arguments such as <String>"

[dontblinkmen]

bro HashSet don't have indexing so that don't have previous method

[wajahatahmed]

How to print specific index value from hashset?