Core Java With OCJP/SCJP: Collections Part-3 || collection & collections|| list & set

[@VuqarIE]

no one can beat this man. Durga means "God of Java "

[@DurgaSoftwareSolutions]

Hello VuqarIE. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@ankursalunke6349]

most loved guy on planet earth, a man with no haters..❤

[@sonnix31]

Congratulations for being the best java teacher ever.

[@DurgaSoftwareSolutions]

Hello Jackson. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@harbir2200]

Sir, you just have taken avtaar for java developers. thank you very much for this amazing gift to avail all the precious classes here for all, freely on youtube

[@DurgaSoftwareSolutions]

Hello Friend. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@surendrasingh-ed9jd]

what to say Sir, you are awesome, every concept is so clear, no confusion at all. your hard work is really appreciable.ThankYou for making these videos !!!

[@DurgaSoftwareSolutions]

Hello Surendra. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@varung5637]

Incredible teaching ..clear concept explanation

[@DurgaSoftwareSolutions]

Hello Varun. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@sunilsahu8254]

Thank you so much sir...... because of you I got job

[@DurgaSoftwareSolutions]

Hello Sunil. Thanks for your valuable feedback.It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@surendrasingh-ed9jd]

How can I give every Java video 10000... likes, this is really a masterpiece.

[@DurgaSoftwareSolutions]

Hello Surendra. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@saurabhtiwari9614]

Alag alag account se

[@deepakkumartripathy6260]

Thank you so much Sir for the Java Series. Request you to make lecture series on Data Structure and Algorithms.

[@Atharva_kathiyawadi]

if Durga teach DSA... faang terminology is like cup cake😆😆 everyone who learnt from durga placed in top product based

[@rizwanshahid1447]

Thanks so much, Durga Sir. The folks are really unlucky who come to this site and do not get knowledge.

[@vinayakkadlag5904]

this is very very good lecture I am become fan of "durga soft" lectures

[@sachindandge764]

You are the Massiah for the Indian IT professionals 🤣🙏🙏🙏❤️

[@DurgaSoftwareSolutions]

Hello Sachin. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@sanalohani585]

King of kings Durga sir 💫♥️ much love sir

[@DurgaSoftwareSolutions]

Hello Friend. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@san141000]

Thanks you so much sir. It's very helpful and easily understandable

[@ramyab6961]

Your way of explanation is awesomeee. thanks a lot

[@DurgaSoftwareSolutions]

Hello Ramya. Thanks for your valuable feedback.It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@fulannagar]

hi sir, you are teaching well but your mic is disturbing there is some deep noise in this video .

[@ranveervaghela7030]

Completed watching on Oct 04, 2024 at 11.16 PM :) :)

[@sowjanyapatnaik1771]

Thank You So Much Sir It Is Very Useful For Us Like out of Hyderabad

[@EngineerVaibhav]

138 video completed❤🎉

[@mohammedsuhailbasha4860]

Very beautiful explaination sir.Thank you so much sir.please upload design patterns video's in java sir.

[@DurgaSoftwareSolutions]

Hello Suhail. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. For Design Patterns videos, Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@rahulgoyal3287]

At 16:34 What is boolean? Is it a reference of some collection ?

[@DurgaSoftwareSolutions]

Hello Rahul. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@rahulgoyal3287]

@@DurgaSoftwareSolutions if i sent an e mail with the video link and time stamp ,will they really goona answer?

[@balajithamatam]

inspirational teaching

[@DurgaSoftwareSolutions]

Hello Balaji. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@seethad8057]

its very awesome.u r a java guru.

[@DurgaSoftwareSolutions]

Hello Seetha. Thanks for your valuable feedback.It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@-AjayChauhan]

Completed this video Day 61 of #75daysofcode in Java 15 May, 2024

[@PratikPatil007]

God Of JAVA💪💪💪

[@DurgaSoftwareSolutions]

Hello Pratik. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@aishwaryathakur1502]

I have a doubt, treemap and treeset are the only classes which allows homogeneous element as sorting requires homogeneous data but when it come to sortedset which also has element sorted then how heterogeneous element are sorted in this case.

[@drinkeatandthink]

SortedSet is an interface while treemap and treeset(implementaation class of sortedset interface) are classes... So you can make an object of classes only...

[@omardjebiri2674]

thank you, sir durga

[@pravindobe9107]

Sir, I have 1 question regarding the list.remove(int index) ? If the list has all integer values, then what will happen,? when we call remove method by index parameter. Ex. If List contain student objects and we call remove method it removes the object from given index, what happens in the following example? List list = new ArrayList(); and Values are 4,6,4,3,6,2,8 respectivly if i call list.remove(4) the what will happened?

[@MrSahilkaura]

Pravin Dobe list.remove(4) is an exact match of list.remove(int index), so it will be called. If you want to call list.remove(Object) do the following: list.remove((Integer)4).

[@pravinzende1184]

Sir u r awesome but plz look into the issue of sound quality plzz..

[@DurgaSoftwareSolutions]

Hello Pravin. Thanks for your valuable feedback.It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@राजनगोंगल]

👏👏👏👏👏👏🙏🙏🙏🙏🙏🙏👍👍👍👍👍👍

[@vaibhavkadu140]

newCapacity = (CC *3/2)+1 = (10*3/2)+1 = 16, but try dubugg the code adding 11th object it will show size[15] how ? look at 44:50

[@DurgaSoftwareSolutions]

Hello Vaibhav. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. Plz contact our online team [e-mail] or call us on this number +918885252627,7207212427/28

[@praveensamuel6163]

The formula is (oldsize + (oldsize >> 1) = (10 + 5) = 15 hope this will be helpful..

[@sonalgupta791]

God bless u❤

[@shreyaagarwal6746]

Sir, if we add in Arraylist to make it generic, then will it allow only string objects? If yes, then it will become homogenous? Kindly clear the doubt...Apart from this, it is the best tutorial I've ever watched.

[@DurgaSoftwareSolutions]

Hello Shreya. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@sanasyogesh1]

To Shreya - But No need to declare the size at initial level. Its a flexible. If you want homogeneous you can get it. If you don't want homogeneous then you will get it. But in case of Array its mandatory to collect homogeneous objects. This is a part of Generics.

[@mohamedtaha391]

ArrayList() l=new ArrayList() ; this is example of generics collections to allow only homogenous objects ..... You are right

[@ramakrushnaghadei4507]

yes, you are correct here we are specifying the Generic Type but if we use List then and then if we try to sort it using Collections.sort() then it will not work as Object does not implement Comparable interface so those types which defines comparable interface will go for Collection.sort() otherwise compilation error: incompatible type

[@pitlajyothi3032]

Sir ,you didn't provide examples for collection and list methods

[@DurgaSoftwareSolutions]

Hello Jyothi. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@anushyasundarrajan1198]

Sir i have a doubt.. We say Collection is an interface. Then interfaces can have only abstract methods within them. Then where is the definition for add(), remove(),clear(), isEmpry() etc are written ? how does it know that if i use add() then it musr insert the data?????

[@DurgaSoftwareSolutions]

Hello Sundarrajan. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@ahmidahmid9303]

every class have it's own version of that method

[@anupampurkait6066]

at 3:03, what type of object you are saying?(a group of in_____ objects)

[@rajeevpandey4041]

individual objects

[@anupampurkait6066]

but by hearing the pronunciation, I think it's indivertible objects

[@MrRoy-f4x]

Sir, are you still teaching or not ?

[@rakeshkushwaha9715]

I have one doubt that collection is interface then where are the method of collection are defined as the interface contain only method prototype.(video at 16:00 mins)

[@ShubhamSoni-cr2ex]

Into its Indirect Concrete Subclass Implementing Collection Interface

[@badeboy_things]

Why do the removeAll(Collection c) is of boolean return type and what does it return?

[@DurgaSoftwareSolutions]

Hello Manideep. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@aditisaini7398]

Video was awesome but stuck (after creating an Arraylist object as shown exactly in example )when i trying to add("A") into arraylist. It show error-- cannot found symbol. l.add("A"); Please help me please please...

[@DurgaSoftwareSolutions]

Hello Aditi. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@Kevin96460]

these tutorials are amazing

[@DurgaSoftwareSolutions]

Hello kevin. Thanks for your valuable feedback.It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@sriharsha1150]

Hi Sir. You are doing l.add(10). Does arraylist allow primitives.

[@falseys]

Hey, Collections concept deals with only objects, I.add(10) - internally the primitive is wrapped to an Integer object also known as autoboxing.

[@LockendraKumarSahu]

Introduced this functionality in 1.5 where all primitives auto box and unbox with wrapper classes

[@tejasraje2672]

Awesome explanations Sir! Hats off! but sir as you said taht we can add any colllection to create new array list , what if the collection we are passing to constructor is a map?

[@DurgaSoftwareSolutions]

Hello Tejas Raje. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@prashantmore8489]

Thank you sir 🙏

[@somnathdinde2254]

God Of Java

[@DurgaSoftwareSolutions]

Hello Somnath. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@prudhvikumar5919]

Sir which IDE is best for C programming practice?? Anybody help me out with this. 😥😥😥😥😥😥😥

[@DurgaSoftwareSolutions]

Hello Prudhvi. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@saranshgupta9119]

Codeblocks, vscode several ide are there

[@Shriharshpathak]

If collection is an interface and it does not have any concrete class, where are all the methods in collection interface defined...???

[@DurgaSoftwareSolutions]

Hello Shriharsh. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@ankitasingh3570]

hey did you get answer for this

[@ahmidahmid9303]

every class have its own implementation

[@kuntansutar5445]

Is there any method to print capacity of ArrayList?

[@DurgaSoftwareSolutions]

Hello Kuntan. Plz contact our online team [e-mail] or call us on this number +918885252627,7207212427/28

[@praveensamuel6163]

No methods availabe.. hope this will be helpful...

[@funmania9137]

awesome explanation

[@sudheern4848]

#In this what is the difference between set() and add() methods

[@DurgaSoftwareSolutions]

Hello Sudheer. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@saranshgupta9119]

Set is used for editing old values and hence does not alters the size Add is used for adding new values and hence increases the size

[@MrBhaskarreddy143]

please enhance this with java 8

[@maliksoft3675]

very nice

[@kousalyamariappan2492]

How to fix this error? The method add(String) is undefined for the type ArrayList. What could be reason. Please explain.

[@DurgaSoftwareSolutions]

Hello Kousalya. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@prakharjha7176]

import java.util.*; class Temp1{ public static void main(String... args){ ArrayList al = new ArrayList(); al.add("1234"); Iterator itr = al.iterator(); System.out.println(itr.next()); } } worked fine

[@satyamishra3329]

in the given example at last i m getting compilation error like...cannot find symbol l.add(). what should be done fr that?

[@ajitpawar937]

You may not have written import statement

[@sahilmahajan6778]

awesome

[@AnkitKumar-td8rc]

Completed Collections P 1,2 and 3 today (6/10/2024 , 8:20 PM)

[@devashishchoubey1965]

thnx sir

[@coding-with-namrata]

Thank You, Sir.

[@ahmidahmid9303]

i can't thank you enough

[@maheshmahi7818]

vice nice

[@rty293]

Tq

[@DurgaSoftwareSolutions]

Hello Meena. Thanks for your valuable feedback.It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/U1KKyi You an see more Java videos following link: Java tutorial by durga sir goo.gl/XWb4RL Java 9 by durga sir goo.gl/hXGyBW Java 1.8 Version New Features by Durga sir goo.gl/iHXXYU Adv Java JDBC Tutorial by Durga sir goo.gl/8q16Eo OCJA 1.8 Java SE 8 Programmer - I (1Z0 - 808 ) By Durga sir goo.gl/gC6R7f Core Java by NagoorBabu sir goo.gl/s6Nvj1 Advenced Java by Nagoorbabu sir goo.gl/ZZonzJ CoreJava by Ratan goo.gl/3VM19v Advanced Java jdbc by Ratan goo.gl/Rn2UXr Advjava tutorials - JSP by Ratan goo.gl/Z6ytxm Adv java servlets tutorial by ratan goo.gl/zTwi9y Servlet and JSP Tutorial by anji reddy goo.gl/jZMRUv Advanced Java Jdbc by Anjireddy goo.gl/16CGzX Hibernate byAnjireddy goo.gl/qQojvZ Struts by Anjireddy goo.gl/nE1Eof Spring by Mr.AnjiReddy goo.gl/NfN14R ADV JAVA by Naveen goo.gl/bhSsXF Spring by Mr.Naveen goo.gl/huVwFN Hibernate by Mr. Naveen goo.gl/TY3Wpd Struts by Mr.Naveen goo.gl/Vkmiw7

[@jain7497]

Thanx

[@heyyvelo967]

Apne bhi shiv nath kumar sir se padha hai na java 😁

[@DurgaSoftwareSolutions]

Hello Friend. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@kutra100]

crowd sounds like a bunch of adult children

[@rajasekhar948]

based on program i tried in different way import java.util.*; class ArrayListDemo { public static void main(String[] args) { ArrayList l = new ArrayList(); l.add(2,"A"); l.add(2); l.add("A"); l.add(null); System.out.println(l); } } while run time i'm getting error because i'm adding elements of arraylist directly from 2nd element Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 2, Size: 0 at java.base/java.util.ArrayList.rangeCheckForAdd(ArrayList.java:755) at java.base/java.util.ArrayList.add(ArrayList.java:480) at ArrayListDemo.main(ArrayListDemo.java:7) Why it is not storing empty element.

[@DurgaSoftwareSolutions]

Hello RajaSekhar. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28