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Heidi this is so hard.

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And welcome to the next video of this collection.

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More do we now in this video we will check out varchar immutable set and they will.

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So first of all let us start with the immutable set by using the set of keyword.

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So here insert the intelligent ID largely modify my code.

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So here I have simply written to a command line does say it contains the unique elements that has shared.

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Also contains the unique elements but the sequence is not guaranteed in the output.

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Right now let me explain you what is a set first.

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So to define a set or in simple words the immutable set you can simply use that ARE.

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My set equal to.

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See set of keyword.

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This contains the list of objects.

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It simply expects that template let have a set of elements of integer type and insert this.

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You have to simply define the values.

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Let's say to the 4 3 1 0 and nurturing 9 9 and 9.

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Again at last 8 this sort of Metford actually returns are immutable set that can only support the read

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only operation and correctly.

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I have only these set of elements that is the interior values.

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So if you want to insert the string values then simply give their type as string and similarly simply

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give their type as float.

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If you want the Florida values but as of now I want the integer values for this more value right now

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since this is immutable in nature so we can not modify the mice set later on.

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That is you cannot insert more elements to it.

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You can only perform the operations such as size stream contains and so on.

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You can not add or remove the elements.

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Now to print out the elements from this might say we need to use the for loop and up inline statement.

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So for this.

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The chords are very simple.

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I will simply use element or any other variable you want.

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In keyword my sig and now insert this let us print out the elements such as element and remove this

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command and all of you are good to go.

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Let us note in the chord so in the output console we can see some Viride output initially to 54 triva

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and 0.

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OK but after this we have only 9 here.

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But while inserting the elements we had 3 9 instead of 1 right.

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So how come these two are getting removed from the set now.

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Initially I told you the search contained the unique elements.

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So no matter how many elements of the values of 9 you insert it will automatically be removed from the

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set because it is the property of the set that it can only contain the unique elements so that hidden

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elements will be removed and no duplicate elements will be present.

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Right so that is why see that certs only contain the unique elements.

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Now suppose you want to modify your set so far that you need to use the mutable set.

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Now again we need to change this set off to see new table set of integer values right.

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So this will simply return on your table set which simply means that later on you can again modify your

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search such as my search dog.

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Remove any element such as I want to remove this 54.

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So I will simply use 54 here and then run the code.

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It will simply strike out the element off of default from our set and now the 54 is now gone.

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So that is why we see that this new table set off does mutable set right and we can perform the read

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and write Operation Boot no later on if you want to add some element so we can simply use my assert

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and don't add and simply add legacy.

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Hundred and run the code.

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So in the output we have hundred as a last element.

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Now this new set of actually returns the same object.

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Right.

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Now what about this.

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Now what about this hash sake.

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So far this let me show you one more example.

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So instead of murid able to set off you can simply use hash of.

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Now this will simply return the object of hash.

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So right now if you are from a Java background then you must be knowing what this hash sect stands for.

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It also contains the unique elements but the only difference between hash sake and said is that in the

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hash sicht the sequence is not guaranteed in the output which means that.

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Suppose I have two fifty four three and so on like this.

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And right.

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But for this set it will simply print or the values in the sequence.

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But for the hash set the sequence does not matter.

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And it does not guarantees that the elements will be rendered in the same sequence.

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So as of now let us check out what happens in the output console.

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So for this also let's just comment out remove and add operation.

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Let us note in the chord and NIXEY of the elements are being entered in the sequence or not.

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So here you can notice I have 0 1 2 3 54 8 and 9 the elements are not being entered in sequence because

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the zero which is being printed as a first element it is actually present in the middle of all the hash.

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So that and also this nine is actually printed at the end.

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But it is present at the second and last element.

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So the sequence in case of hash is not guaranteed but in case of set it is actually guaranteed.

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So the only difference between the two they will off and hash set off is this only of the sequence.

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So you can use either of these to ask but are you a requirement that they will accept and Buddh supports

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read and write operation that is you can remove elements add element or replace any element and so on.

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So finally we have reached the end of this more deal.

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So in this more will we talked about the collections collections and collections and also it talked

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about the immutable collection and mutable collection in all the cases of list map and set.

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Now if you remember all these mentors such as list of map of and set off and all these methods that

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I have mentioned here add a list of hash map off and so on.

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You will face new difficulty for their data structure in Carter-Long.

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So make sure you remember there are differences between the immutable and mutable collections and the

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respective metrics of least map and stick.

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So this is considered signing off and thanks for watching and have a good day.

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Thank you.