Java OOPs in One Shot | Object Oriented Programming | Java Language | Placement Course
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- Опубликовано: 5 фев 2025
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00:00 Classes and Objects
Constructors
Types of Constructors
21:07 Polymorphism (Function overlaoding)
26:26 Inheritence
34:43 Packages
39:42 Access Modifiers
47:00 Encapsulation
48:14 Abstraction
57:29 Interfaces
01:01:16 Static Keyword
Thx bhai
Push to description
Commit -m
ruclips.net/video/s4B2QFjCfVw/видео.html
Thanks bro
Thank you so much
00:00 Classes and Objects
13:10 Constructors Types of Constructors
21:10 POLYMORPHISM (Function overlaoding)
26:30 INHERITANCE
34:52 Packages
39:43 Access Modifiers
47:03 ENCAPSULATION
48:16 ABSTRACTION
57:04 Interfaces
01:01:22 Static Keyword
Lovely lovely
1. Encapsulation :- Wrapping up of data member (variables) and member function (method) together into a single unit called is known as encapsulation .
2. Abstruction :- It is the act of representung essential features of class without including the background details.
ex :- switch board , etc.
3. Polymorphism :- It is the ability of an object to behave in different form according to the message passed to it.
In java it is implimentes due to function ove loading
4. Inheritance :- It is the ability of an object to acquire the properties of another class.
overridding missed
can you explain why did she not use static keyword ,but she told in the oerior vedio that to call a function we need static keyword
@R2H fanpage thanks bro
And method overloading miss hai
@@moviesclips.....a.j3035 when you call same method with by same name by minor change by your own particular need thats call method overloading
What was good?
- The video was excellent.
- She has covered all the necessary points to understand the OOP.
- The way of explaining things was so good.
- The examples were also very good to understand it in the right way.
Where improvement is needed?
- You could have done the trial & error in coding i.e. Multiple test cases for an even better understanding.
This Keyword >> This is a Refrence variable which holds the Reference id of current object .
and this always points to a current object.
24:41. This is the best video for OOPs in Java. However, in function overloading, you cannot have more than one function with the same name, same parameters but different return types.
The same thing struck to my mind and to be sure I used intellij :-D. So yes, it can't happen.
Yep, else how will JAVA decide what to call for Add(1, 2) if there are two functions that return int and double.
I'm from Sri lanka. Apko teaching Style bohoth achchahe. thank you very much madam
for those using Intellij are who are not able to create a package and upload it at 39:10...write down this code instead of what Shraddha di tells us to write
code:->
package bank;
public class Bank {
public static class account{
public String name;
}
}
if you can explain can you please tell why did that code ran in video but not in we type
yes please do tell
Thanks dude for your help.
21:10 to 26:25 Kya gazab samjhaya hai Polymorphism (only Function Overloading explained)
Never forgetting it again
📌 📌 Correction in video information :: 24:40
Function overloading can not be performed by changing the return type, means it does not depend on return type
no, you can change data type of that method
eg:-
class Method{
public static void main(String[] args) {
Hello();
System.out.println(Hello(5, 0));
}
static void Hello(){
System.err.println("hello");
}
static int Hello(int a, int b){
return(a+b);
}
}
@@utkarshpathak3472 function overloading cannot be performed only just by changing return type,thats what he is wanna convey
(and its true). 💢💢
Hiii@@govind_5101
00:04 Object-oriented programming is used to solve real-world problems through coding
02:26 Java Object Oriented Programming basics
07:33 Understanding Java OOPs in One Shot
10:18 Object Oriented Programming in Java
15:11 The constructor in Java can be created either by default or by using parameters.
17:39 Copy an object and put it in another object
21:43 Java OOPs covers time polymorphism and runtime polymorphism
23:53 Overview of Function Overloading in Java OOPs
27:56 Java OOPs in One Shot
30:15 Java OOPs covers inheritance, single level inheritance, multi-level inheritance
35:17 Java OOPs involves writing code logically and organizing it in a structured manner.
37:10 Java OOPs in One Shot
41:37 Access modifiers in Java OOPs
44:19 Java OOPs in One Shot | Object Oriented Programming
48:18 Java OOPs in One Shot - Object Oriented Programming
50:31 Object Oriented Programming in Java
55:35 Understanding the concept of constructors in Java OOPs
57:32 Interfaces in Java cannot have constructors
1:01:46 Creating an object of a class allows multiple instances with shared properties.
1:03:48 Java OOPs in One Shot | Object Oriented Programming.
Must watch end to end Java devlopment : www.youtube.com/@SelfJavaLearning/videos
Beautifully explained OOPS in Java, I have read many notes and examples but was still doubtful about the concepts. After watching this video I am now quite clear about the OOPS concepts in Java. Her lecture was excellent, it was worth watching as it was consumed very less time.😀
We watch your daily on big screen and learn something new daily we are 75 student...❤❤❤huge respect from Pakistan ❤
24:41- correction
In Java, Method Overloading is not possible by changing the return type of the method only.
Thanks bro
@Apna College u must tell this thing as a popup or something
but it returns answer
class Shape {
void area(){
System.out.println("area");
}
}
class Tri extends Shape{
void area(int hight,int length){
double res=(hight*length)/2;
System.out.println(res);
}
}
class Circle extends Shape{
void area(int r){
System.out.println((3.1416)*r*r);
}
}
public class Opg{
public static void main(String[] args) {
Circle c=new Circle();
c.area(2);
}
}
@@asadullahallmamun3192 it's an example of method overriding
Exactly bro
Didi , please post video regularly.
Waiting from long time.
Also data structures coming in college end term examination in java (December).
24:40 In Java, Method Overloading is not possible by changing the return type of the method only.
but look at her confidence man
@@73bits lol🤣🤣
Right return type doesn't matter in overloading
See the video nicely
@@73bits lmao 🤣🤣🤣
Hello Aman Bhaiya,
There are few more concepts that we need as in college as professional, if possible if you can make video on these concepts of Java:
Java API Packages
Multi threaded programming
Managing Error and Exception
Managing I/O Files
Java Collection
Applet Programming
AWT
Event Handling
JavaFX
JDBC
Java Networking
Thank You
yes🥲
yessssssssssssssssssssssssssssssssss
+ servelets
Exactly
2X is too slow. Please youtube bring 5X for us. Atleast for students😂
Absolutely
2x mei krke thoda right side hold krke rkho 4x jitni speed ho jaegi🤪😍
Fr
Baita parhanay atay ho ya sunnnay aatay ho
@@sonalikajoshi56 Nahi vo 2x hi rehta h
Lectures are very informative Thanks for sharing sister
Your teaching method is very good
From Pakistan
Bhai Bomb banane m bhi java use Hota hain kya?
The sheer clarity and the flow in which OOPS concepts are explained is commendable. Excellent work done!
Wtf are you talking about it’s not even in English
@@markupton6084 Then try to learn Hindi along with java, otherwise, go somewhere else.
@@Spider-Man_67 🤣🤣🤣
@@markupton6084 Then learn languages older and richer vocabulary than English नहीं तो मम्मी चुदालो जाके।
@@Spider-Man_67 south Indians don't know Hindi
My exam was after 5 hours, your video saved me 😊😊I knew nothing of Java , but within this 1 hour lecture I understood many things related to object oriented programming .
1 hr class was next level I have zero knowledge about Java but you made it too easy❤❤❤ TQ for the master class
After Studying java : Actualy in 6:09 " new Pen( )" creates an objects. An object is created first then a ref variable in created seapreatly which is then refred to an object . ie Pen pen1 ; new Pen( ); pen1=new Pen( ) are 3 seapreate statements which shows how an object is created and then refred thriugh an refrence variable.
Literally every single one of my doubts in oops was beautifully explained in this video, thanks a lot didi ❤️
@its_coding_time subscribe the channel for simple explanation
The playlist is very helpful. Thank you so much to whole team of Apna College. Its due to you guys that I'm able to learn java in such a convenient way.. Keep up the good work!
Great
VARANASI SARALA PUUKU MUNDADHI
You have a talent for making complex ideas seem simple ❤thanks to you
The way She Explains Everything is just so Amazing. Forever Thankful❤❤❤
Abstraction:
Hiding the implementation details from end user
Realtime example - watch (we don't know the functionality)
Encapsulation : hiding the details from implementation level
No one can explain much better than this .....
Much respect 🙏
heh
Smart Programming By Deepak Sir
24:45
One Concept is incorrect.
In overloading you can not differentiate on the basic of return Type.
You can only differentiate on the basis of Arguments.
Costed me an interview.
Perfect and to the point discussion.
I am very happy that I found this video.
This video very helpful to me.
Good Work and Thank you so much for making this type of content.
Your vides is very great and helpful... aapki videos dekh krr mein bhit khch sikh gyi
Thank you ma'am 🙏🙏
Apne sare doubts ek hi lecture me cover kardiye
Thank you so much ma'am🙏🙏❤️
Every single second is worth watching!! Great lecture Didi❤️🥳.
Charan sparsh h didi ko ,
Gurur Brahma Gurur Vishnu.....
Meri job m bohot help mili h .🌹
First of all, I thank you for providing precise and much needed helpful content. Please consider making videos for helping testers in automation and devops.
🥢
This has to be one of the best lectures on OOPS on the entire internet(And I truly mean the entire internet, I have gone through tons of videos and articles)....thanks a lot!!
A great video to come back to for refreshing concepts. Thank you very much!
Plz make full length videos like this one its great...........#OOP BUSTED
job lagi ya berozgar hai abhi bhi?
mam this is really awesome OOPS revision in one short.
your way of teaching is really awesome mam .
mam please can you provide us data structure and algorithm concepts in short.
yeah i need this also
Revision ke liye hai bss ya starting se oops kar rahe hai to dekh sakte hai
The way you teach OOPs concept is very best and I learn more things from this video.
Every topic is cleared.
this not easy brothers
thanks alot.
Nice Vedio for Java Concept.
Mashallah Bahot ala,bahot achee paratee hoo.
You should show us the error which came in console when you missed creating default constructor and wrote copy constructor. Explaining the reason of that error would provide viewers a better understanding. By the way nice video and I have subscribed your channel.. 👌
We have to define default/non parameterized constructor by ourself if we have defined any parameterized constructor which you have defined as copy constructor here. But if we don't define any parameterized constructor then default constructor is created by JVM. Correct me if I am wrong.
Also please don't confuse viewers by your words because each word you say is tightly linked to topic and we are learning from you and listening to each of your words very carefully. You mentioned in partial abstraction that you have created a function name animal but you later pointed to eat function of Animal class.
But end of the day I have subscribed you channel and really thanks for the video.
I'm an Android developer and this video is extremely informative. Thanks a lot Didi ! :)
I am also... Where to find project on Android
ruclips.net/video/s4B2QFjCfVw/видео.html
way of explanation is so clear and effective to visualize things and learn....Please also make video on how to build career in ML, Programming,Web dev Please Thanks in advance for such efforts hats off
Excellent teaching mam 🎉 please upload python full course also .
The efforts made to explain hard topics in easy way💯💯
Thankyou so much mam
finally got a teacher who is not boring whom i like by the looks and whose method i understand
Hello
Hiii
Can I talk to you please
Hii
@@Ignite_Growth5yes
DIDI please post video regularly ....
Or appse pedh kar Java mein itna maja a raha hai
Ki couldn't wait for next video..
Wating for long time
Also data structures coming in college in exam ...
Right bro
shradha covered entire oops in 1 hour video which the university teacher takes literally a month or more than month to cover all the topics.
Superb explanation of all the concepts.
Her expressions and actions while teaching are unmatchable
Didi please make a playlist with 10 to 20 videos on OOP concept in java. It's so vast concept that can't be understand in just one hour of video .
I've been trying to understand oops concepts for 2 years but watching your video gave me full understanding. Thank you
Hi ma'am today was mid semester examination of Object Oriented Programming with Java . For preparing oop I watched your video and learnt from notes provided in the comments section.
This made an effect on attempting the examination.
Thanks for creating these exiting and interesting videos.
where is link for notes i can't find it can u send here
This video will help me lot to review my oops concepts strongly, The way of teaching is also best to clear out each and every point and to helpful for those who will be learning java oops concepts Thanks for providing such kind of conceptualized video to clarify each and every concepts in oops
best teacher i have ever see , thank you maam for your support
So well explained ; really helped me for a quick revision in 40 mins.
Thanks for helping us out to understand the basics of OOP, I have not been in touch with OOP from last 4 years, by watching your video I have suddenly recalled all concepts. My Inteview is scheduled tomorrow, wish me luck :)
So how was ur interview
@@puhh04 Not succeed, but after giving multiple interviews, finally I've received an offer letter :)
Super nice tutorial except that 24:40 part , the amount of clear examples used and the no of small minute details covered by her in every lecture till now is commendable. I always struggled with the oops concepts but now I have a very good understanding! Thank you.
method overloading doesnot depends on return type if u have different return but same parameters then it will give error.
Reminder on video timestamp 24:50 mam tells that we an use method overloading by changing return type of method which is wrong.
We can't achieve method overloading by changing return type of methods due to avoid the ambiguity..
Mam plz correct it in video
Kudos for the great content. However, just wanted to point out a minor error, Java doesn't allow two functions to have same signatures defined in the same class. At 24:42 what you are saying is that below mentioned is allowed:
public void printInfo(String Name){//some logic};
public int printInfo(String Name){//some logic};
Correct me if I understood wrong. What I know is their parameters necessarily needs to differ either in number or in datatype irrespective of the return type.
Please also do a video on java database connectivity, and its basics. It would be of great help. By the way, loved the video.
Next level teacher 🔥🔥🔥
Keep teaching us...
GBU.. 🙏
It was fantabulous , and like the way you teach : Thanks for making such content :
and i like the way you lie
very helpful. This is finest channel for learning code. love from Pakistan
Really very veryyy veryy Helpfull... May god bless you always.
Way of teaching all these concepts is incredible 👍👍
Understanding oops concept from scratch to such a level.. Superb😃
Are u a college student?
Nobody have taught me oops concept with this much theoritical clarity just loved your teaching ❤️
@its_coding_time subscribe the channel for simple explanation of topics
😒
This has made my concepts so clear! Brilliantly taught! Ma'am, I am a fan of yours.
suuper dupper oops class
bhut he easy wave me oops ke concept clear kr diyye
thankyu shardha didi 🙏🙏🙏🙏🙏
Replay so useful like beginners, so grat work😊😊😊😊😊
Amazing content, loved the way you teach. Thank you so much. ❤️
24:40 I think return type doesn't matter in overloading, by changing return type we can't achieve overloading
can you explain why did she not use static keyword ,but she told in the oerior vedio that to call a function we need static keyword
@@ravanasura8308 a static method can be called without creating an instance (object) of that class, thus main () is made static since object of the main class is never created before compilation, if you want to know more about static keyword then ref: ruclips.net/video/qRCEdWQ0f4Q/видео.html
@@ravanasura8308 functions can be called in two ways-
1. by creating an object of the class and then calling that function
2. by creating a static function-
eg:
public static void display() {
System.out.print("Good Morning");}
and this static function can be called directly (without using any object)
public static void main(String[] args){
display();
}
it will work..........
Thank full for this course much needed course, only course i found teaching with practical code at par with courses like Harvard's cs50.
Even the examples used in inheritance for shapes strikes the concept perfectly in my mind, and the delivery of knowledge is excellent only a perfect learned can deliver such perfectly. KUDOS to everybody
Great work keep going
Great one shot lecture.
-> Method overriding is missing.
24:35 **[functions `can not` be overloaded if they differ only in the return type.]
Better than any lecture. Thank you for this awesome lecture.
Anyone is here in January 2025🎉🔥
Thank you so much for providing this worthy stuff for free! I used to hate java only because I really was not able to understand these concepts but after watching this video I fell in love with Java. Thank you once again. Much love :)
u want my stuff for me
Very intelligent teaching, God bless you beta 🙏
Thank you so much for explaining so many things in one video.
It really helped me to brush up my Java.
The work you are doing is just next level🔥🔥. It's very helpful and informative and lots of concepts are now getting clear. we all appreciate your work which u are providing free of cost..thx didi
Amazing! you've delivered very clear concept of OOPs.
No!
18:51 to 18:58 should be cut and trimmed from the video, minor editing mistake. Very informative video
Thanks didi for teaching this important concept very easily 🙏🏻🙏🏻
Back Again 🔥
Happy Diwali 🔥
Salute to the Tutor. I am from Mechanical Engineering background but I understood it very well.
me also robotic
Small correction
13:16 constructor is used to initialise the object
To create object new keyword is used
Thanks for video didi
Really no words for ur perfection teaching methodology ❤❤❤❤
Very Detail Explanation...
Thanks You
Thank you 💕 for continuing this series
Good explanation, but overloading does not depend on return type.
I'm really exciting about Data Structure and algorithm.
But may I request please cover advanced java too.
hi di!!. i have always hated java. but now i am understanding each and every concept because of you. my college teachers never reached to this level. all these conecpts were not clear to them as well. but are great. only beacuse of you i feel like studying again. thank you so much. you have explained each and every conecpt in the simplest way possible. thank you and a very heartful gratitude.
This video is just awesome.......Thank you so much 😀
24:49
by changing return type function overloading will not be achieved it will be consider as same function only and get an compilation error
so we must have difference in their functional parameter type or number
there are some technical mistakes in her videos. like this one that you pointed. otherwise good work but those who are beginners will definitely learn few concepts in correctly
@@aditidhingra3513 Could you please tell me the other mistakes? I don't want the exact time stamps of the mistakes, kindly just mention the mistakes that you remember. Thanks in advance.
which ide she is using can you tell me plz?
Didi you are amazing ❤️ body language, knowledge, method of teaching and the way you covered and elaborated all the concepts are just amazing 🌸
VARANASI SARALA PUUKU MUNDADHI
THANKS A LOT DIDI ❤I WAS CONFUSED AND STUCKED ON THAT TOPIC BUT YOU MAKE IT CLEAR FOR ME ...
24:42 rertun type does not play any role in function overloading. If there are two functions with same name and same parameter list, then compiler will throw an error. This is because the java compiler cannot differentiate between two methods based on their return type.
One of the best videos on OOPS😊😊 great work..!!