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Vector class details (Collection Framework )
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- čas přidán 5. 03. 2014
- This Video explains Core Java - Collection Framework | Vector class details. Training Tutorial delivered by our Trainer Durga Sir.
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I really had trouble to catch his accent very beginning...now I watched around 30 videos and truly I salute you Sir. I paid $1200 in the university for Data structure course yet the prof did not explained like this.
yes his accent is not well,but the way he teaches ,is easily understandable and he makes collection easy then our college lectures
sir you should get padmashre award you truely deserve it !
I yam Collection King now.. thanks to u sir..
The way u explain concepts is very interesting and fun to watch..
Sir, Ur r just amazing... the videos I see of other channels.. i used to rewind and see it again.. or I would just stop at middle of video coz i dont understand it . hahahahaha.
. But You are incredible Sir... Loved it ❤️❤️❤️❤️❤️ . And the way u say "Add".. Just loving Sir ❤️❤️❤️❤️❤️
Thank u so much sir for such a wonderful explanation. Things become so easy to understand and remember with the way you give examples. U r truly one of the best Java Guru I have ever seen.
Durga Sir is not only GURU for Java, he is a EMPORER of all the software subjects. Thank you, Sir 🙏🙏🙏
I think no one can explain better than you.... i mean, Even a student with no minimum knowledge also can understand very easily with your teaching.....
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Sir hats off to you..Your examples are amazing realistic you are awesome.
Thank you so much....u have made these concepts really easy for us...great tutorial
Thank you Sir. You are awesome and you explained all concepts so clearly!!!
One correction in Vector specific methods for accessing an element. 'Object get(int index)' is from list not from Collection. And there are no methods define to retrieve objects in Collection.
Thanks for this great explanation
I congratulate you sir for the great job you are doing.The screen to copy for notes is the best thing to have.Please keep up the good work , my good wishes always with you.
Sir,I saw in one of your video cover page there is written Durga sir weapon of durga software solution.But i must say U r nuclear weapon of Durga and even java
Thanks! Very good explanation of collection framework .
Alok Kumar
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All videos are fabulous for beginners for clear concept of each topic.
Can u upload a video with programming of each topic
Thank u Sir.............
Thank you sir 🙏🙏 For this very very informative video
thank you for this explanation. is it possible to show us how 2d vector can be constructed and manipulated. example using 2d vector to produce matrix
Awesome explanations ♥️
god bless you sir ... thanks a lot for these tutorials
Sir U have Wonderful konwledge on Teaching
awesome class sir..unbelievable way of teaching..
i think we dont have to use without initial and implementation capacity when number is big because it will waste memory *2.
Loved to see my name
Thank you so much sir .
Thanks for thie awesome session
Thank you so much sir
sir what is meant by serializable and cloneable in vector interface could u please explain sir?
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I think this is good, but do question whether we should emphasize that vector is pure legacy and really shouldn't be going into new code. Similar to going thru the whole playlist scarcely mentioning generics. I understand that is how things evolved historically, but arguably one could say ArrayList replaced Vector for new code in 1998 (!!) and one should have started shifting hard over to using generics in 2004. Not everyone loves generics in Java, so I guess the point may be debatable.
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Thanks sir..
In your example ,
for(int i=1;i
here autoboxing takes place
At 23:20 the vector program, we are storing int =1 to 10 in vector, are they not primitive data type ?. And we learnt that Collection cant hold any primitive data type. Anyone of you could you please explain.
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awesome lectures...
shilpa vani
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Sir in arraylist video you taught that when you know the size then it is best to go with array but in arraylist we can make the arraylist of fixed size also and same as in vector then sir which is best array or arraylist?.....and thanku sir for your videos..
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in array can you store heterogeneous object? answer is here 👍🏻
sir nice explanation but having small doughts
hi durga sir, As you told that array list will increase it size by (int_capacity*3/2)+1 . initial is 10 and as per formula it should be 16 if 11'th element is added. but it is actually 15 not 16 . i used reflection to get the capacity .please let me know sir i am confued who is correct. abstract class ArrayListHelper {
static final Field field;
static {
try {
field = ArrayList.class.getDeclaredField("elementData");
field.setAccessible(true);
} catch (Exception e) {
throw new ExceptionInInitializerError(e);
}
}
@SuppressWarnings("unchecked")
public static int getArrayListCapacity(ArrayList a) {
try {
final E[] elementData = (E[]) field.get(a);
return elementData.length;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
❤
Thanks you
mimmalni ala pogadalo ardamkavatlaedu sir u are the best
great explaination...
wonderful lecture
Thank sir
really useful...got it..
have this incremental capacity is not there in hashing
sir can add elements using linkedlist and read using arraylist?
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Thanks rajani sir
very nice sir,..
thank you sir...
Rahul Kumar
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Nice explanation.. generation gap..
Excellent
Hi Abhi. Thank you very much for your feedback
👌👌👌
sir u r using a term called underlying data structctre bt i am not able to understnd what is underlying data structure?plz help me through the comment
He speaks of what the actual details of the implementation of each is. You generally don't see it directly, but it determines the performance characteristics and to some extent the capabilities of each of them.
sir what means serilizable .??
nice explanation
..
sreenivas rajeswara rao
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Emathram chalu anna ...... chelregipotham...
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thanku sir....
vector list is similar to array list then why should we use vector list its purpose is similar to array...
+Siraj Uddin If you want a thread safe application/code then you will go for vector as it has synchronized methods. If you don't intend to keep your code thread safe( i-e only 1 thread can use the object to invoked the methods) then you can go for arraylist.
But We can make ArrayList Is synchronize by using
Collections.synchronizedList(list)
then what is need of vector
Vector class is the legacy class(Coming from old version of Java) which provides default thread safety. But then There was a need of a class which could operate multithreads on its objects without waiting for the other threads to complete. And ArrayList does not provide default synchronization.
+Majid Khan if we do so then it becomes too much lengthy and readibility of code is going to increase since in vector by default syncronization is there no need to worry about readiability of code .
awsome
ckudalkar
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sir can u tell why this error I am getting
EnumerationDem.java:6: error: cannot access Vector
Vector v=new Vector();
^
bad source file: .\Vector.java
file does not contain class Vector
Please remove or make sure it appears in the correct subdirectory of the sourcepath.
1 error
+sunita kolekar have you imported util package ?
import util
sir what is underlying datastructure?
Dhanmoni Kalita underlying data-structure mean on which data-structure particular collection is based , example Vector is based on resizable array, LinkedList is based on doubly Linklist.
thanks Shrinivas Yadav
Shrinivas Yadav when you say "underlying data-structure mean on which data-structure particular collection is based",does it literally mean that vector can be created from array?
hahaha.. ArrayList.Add() vs Vector.AddElement() difference.. generation gap ... hahahaha.. Nice way to remember.. 1995 cinema :D ..
these things make it easier to remember
hope there will be eng sub someday
waste of time