Explanation of Java Hello World Program by Deepak (Part 2- Hindi)

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#java #javatutorials #deepak #smartprogramming
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SIMPLE JAVA HELLO PROGRAM :-
class Abc
{
public static void main(String[] args)
{
System.out.println("hello");
}
}
=======================================
EXPLANATION OF EACH TERM IN ABOVE PROGRAM :
class :
- class is a keyword.
- Java is an object oriented programming and you cannot run your code without
a class in Java. So you need to put your code inside a class.
- In one java program, there can be only single public class.
- Syntax of class :
access-modifier class ClassName
{
//body
}
- If a class has no modifier (the default, also known as package-private), it is visible
only within its own package (you will learn about them in a later episodes)
------
Abc :
- Abc is an Identifier (user-defined class name)
- Class-name should follow the rules of an identifier.
------
public :
- public is access modifier keyword.
- JVM can be installed anywhere i.e. C or D or any other drive and JVM is
responsible to call main method which may be in any other drive, thus to
call main method by JVM from anywhere, “main” method should be declared
public.
-----
static :
- static is keyword.
- At the time of execution there is no object, thus by declaring main method
as static, it becomes class level method (not object level method), so it can
be called without object (JVM class main method). Thus main method
no where related to object.
-----
void :
- void is return type keyword.
- void means nothing or empty.
- main method has void return type as it does not return anything to JVM.
If it returns then what will JVM do with the value, it will be of no use.
------
main() :
- main is predefined method, which is configured inside JVM.
- JVM always start its execution from main method.
-------
String[] args :
- command-line arguments
-------
System :
- Predefined class present in “java.lang” package.
------
out :
- out is a “static variable”of “PrintStream” class present in “System” class.
Three static variables of PrintStram class are :
- out (for output)
- in (for input)
- err (for error)
----------
println() :
- println() is method of PrintStram class.
- Three different methods of PrintStream class to print on console are :
- print()
- println()
- printf()
==
WHAT CHANGES ARE ACCEPTABLE FOR "main()" METHOD :
1. The order of modifiers can be changed, so instead of “public static” we can write
“static public”.
2. We can declare “String[] args” in any acceptable form, which are given below :-
- String[] args
- String []args
- String args[]
3. Instead of “args” we can write any valid java identifier.
4. We can replace “String[] args” with varargs (Variable Arguments) parameter i.e. we can write “String... args”.
5. We can use “final”, “synchronized” and “strictfp” modifiers with main method

Пікірлер: 212

@SmartProgramming Жыл бұрын

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@RajThakur-sp6vc 6 ай бұрын

Most question where asked in technical round

@anilpatidar4179 2 жыл бұрын

Thanks sir gives deeply knowledge

@skakramulali6881 Жыл бұрын

thank you very much sir

@vitthalpatil.skyarmy69 Жыл бұрын

You explained well sir

@mohdjishan9025 4 жыл бұрын

Superb explanation sir

@wajahatbaigmirza2195 Ай бұрын

The way of his explanation is very good and understandable.......Thanks for such kind of course for free

@SonuKumar-oq6cj 3 жыл бұрын

superb sir salute you

@ayushupadhyay6073 3 жыл бұрын

Thank you sir!!!!!

@ashishprakash345 4 жыл бұрын

good explanation

@kanchankamble1276 3 жыл бұрын

Very helpful sir 💯

@sampoosampoo4911 5 жыл бұрын

nice explanation

@tilakrajchoubey5534 3 жыл бұрын

nice one

@PriyankaSingh-dk1zi 3 жыл бұрын

Awesome

@SmartProgramming 3 жыл бұрын

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Amazon Store: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

@umairahmad766 4 жыл бұрын

Super sir

@aman3214 4 жыл бұрын

Look down me sirf aapka sahara hai

@arshadansari5360 5 жыл бұрын

good sir

@archanapandit7301 5 жыл бұрын

Nice video

@barshadandasena2238 16 күн бұрын

Now all my doubts are crystal clear

@SmartProgramming 4 күн бұрын

Thats great, thank you for your feedback dear, keep learning Below are some of the links of free playlist :- Core Java : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Spring Boot : kzbin.info/aero/PLlhM4lkb2sEhcrb1-4eyDE-rXnGNVYsek Spring Framework : kzbin.info/aero/PLlhM4lkb2sEgJDGj2zOJnp0y5A5E6li1k Advance Java (JDBC + Servlet + JSP) : kzbin.info/aero/PLlhM4lkb2sEjVsbbZ_kiixY5CcR84IQUg Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Connect With Us On : Facebook Page : facebook.com/smartprogramming.india Instagram : instagram.com/smart_programming Telegram : t.me/smart_programming_deepak

@hackerrank6449 2 жыл бұрын

Thank you sir for explaining terms in simple way

@SmartProgramming 2 жыл бұрын

Always welcome. Keep watching. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram : instagram.com/smart_programming

@vikramchaskar3171 2 жыл бұрын

Thanks for clearing all concepts

@SmartProgramming 2 жыл бұрын

You are most welcome

@ArunKumar-rw6gw Жыл бұрын

You are deeply explain the all topic, very helpful course thank you sir 😊

@SmartProgramming Жыл бұрын

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram : instagram.com/smart_programming

@ankitabiradar2112 4 жыл бұрын

no one can explain so perfectly. really great ur explaining each and every word meaning

@SmartProgramming 4 жыл бұрын

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

@himanshuchaubey6301 Жыл бұрын

main cdac me admission liya hu aur maine yahan admission bina programming ka P jane le liya hai ; aur yahan pe syllabus rocket ki speed se chalta hai just for formality; main sach bata raha hu main youtube pe jitne bi channels hain famous sabka dekh liya java aur finally laga ki mujse nahi hopaega but sir ke harek video me mere saare doubts clear ho rahe aur confidence aa raha hai kafi ;;;;best teacher in the world thanks sir alot , aapne meri jeendagi bacha li , nahi to umeed haar gaya tha main

@ReshPol Ай бұрын

💯👍

@ishwarmise9787 9 ай бұрын

Very deep and easy explanation provided..hats. Off

@bhagyeshwadhale8101 2 жыл бұрын

Badhiya sir excellent Explanation sir... 🔥🔥🤟✨

@SSR-ro3up 3 жыл бұрын

Perfectly Explain ... It is Study

@SmartProgramming 3 жыл бұрын

Thanks

@vikashpanchal7444 2 жыл бұрын

Sir your explanation is best on KZbin Thanks a lot sir.....😊😊🙏🙏

@rinkanbehera8203 Жыл бұрын

excellent very nice..

@SmartProgramming Жыл бұрын

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram : instagram.com/smart_programming

@ShaikRehman-f9m 4 ай бұрын

THANK YOU SIR

@omkar-js3mz 3 жыл бұрын

Excellent lecture sir

@SmartProgramming 3 жыл бұрын

Keep watching. Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram : instagram.com/smart_programming

@quantumnature6641 4 жыл бұрын

Best video in the world

@SmartProgramming 4 жыл бұрын

@akhileshkumar-s8g7l 8 ай бұрын

awesome sir aapka class krke bahut comfortable lagta hai Java mei and I have cleared many interview from your lecture only

@sanat632 6 ай бұрын

great tutorial

@kaushalsingh6775 4 ай бұрын

nice sir

@nandini1603 4 жыл бұрын

you are the best teacher

@SmartProgramming 4 жыл бұрын

@asbadwalizada36 2 жыл бұрын

You are so good man I very like you.

@SmartProgramming 2 жыл бұрын

Thank you so much 😀 Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram : instagram.com/smart_programming

@bcaeducation4913 3 жыл бұрын

very helpful this video my basic

@tarak_80 8 ай бұрын

Thank you sir

@saipanchal1166 Жыл бұрын

Your teaching is excellent sir 😊

@prakratjain5133 3 жыл бұрын

Awesome...

@SmartProgramming 3 жыл бұрын

@asadiqbal9505 3 жыл бұрын

perfect 👌 explanation sir

@ratnaminiblog 4 жыл бұрын

Awesome sir

@SmartProgramming 4 жыл бұрын

@lihongyi_naz3173 4 жыл бұрын

Thank you sir.. Very easy to understand

@SmartProgramming 4 жыл бұрын

@Singer_Raj4.0 2 жыл бұрын

very good explain

@milindjaiswal4375 3 жыл бұрын

nice

@SmartProgramming 3 жыл бұрын

@Sandykxcf 3 жыл бұрын

Nice Explanations👏

@GoodTimes63 Жыл бұрын

Words kam pd rhe h sir aapke lecture ki explanation ki taref krne k liye.... Aap ek ek word pr focus krte h esse hmara basic strog ho jata h thank u so much keep makin videos, and please provide the java notes if possible

@jyotsingh9522 3 жыл бұрын

Thank you so much sir your teaching is very well sir

@_sudhir_official Жыл бұрын

ab lag raha hi lisi teacher se padh rahe hai.

@SmartProgramming Жыл бұрын

Keep Watching. :)

@parasmarskole7245 Жыл бұрын

sir apke explain krne ka tarika bahot sahi he isme hindi medium valo ko bahot benefit hoga i think

@harshitjoshi1077 4 жыл бұрын

What will happen if we do not use static in this program..

@sameer-nb2jv 10 ай бұрын

sir apko pta nhi apko kitni duaein de rhe hai bache,free education sabka hak hai pr koi kli samjjta hai aur aap de rahe ho boht achi baat hai pr ye hai apke views aate rahe lifetime yaha se maximum bcho ko pta lagta rahe aur jitna ho aap kmao aur vaise bhi konsa memeory le rhi hai youtube pr aur naam bhi ho rha hai paid course bhi lege bche apke abho to starting hai dkehte raho

@atharvmishra5548 3 жыл бұрын

will one like be enough for your videos

@18_harshikasingh83 3 жыл бұрын

Sir please can you provide me a notes on java programming

@mohitmehta1971 3 жыл бұрын

really well explained

@akashkumarmandal0146 2 жыл бұрын

Sir ek printf method ka exapmle de dijiye plz🙏

@marketinglonda173 Жыл бұрын

Thanks sir

@maheshwarpatil6412 4 жыл бұрын

Thank you sirg

@shivanipatel304 2 жыл бұрын

Nice 🙏🙏👌

@SANJEEVKUMAR-wz4rb 3 жыл бұрын

Well Explain

@ShivaYadav-hb2fz Жыл бұрын

Bahut hi jyada mst❤❤❤

@shivamraiofficial 3 жыл бұрын

You don't haven any idea that you are a legend

@SSR-ro3up 3 жыл бұрын

Good One Sir G

@SmartProgramming 3 жыл бұрын

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

@R__L 3 жыл бұрын

thank u sir ,u r a great teacher

@Desi_Man6785 3 жыл бұрын

great one...

@gajananmahalkar6985 3 жыл бұрын

unique 1

@gajananmahalkar6985 3 жыл бұрын

Super👍

@poojasolanki4955 3 жыл бұрын

Really Very helpful for me.... Tysm 😊

@SmartProgramming 3 жыл бұрын

@abd4154 3 жыл бұрын

Good

@devanshisahu2471 3 жыл бұрын

bhoat acha tha samaj aaya hello world ka program thank you so much

@gulsatarorakzay1284 4 жыл бұрын

Good one

@princejava1900 4 жыл бұрын

ek number

@ramannegi9207 3 жыл бұрын

Accha laga

@ramnonia1039 4 жыл бұрын

Nice sir😊

@bhaktirasamritam5130 2 жыл бұрын

Awesome

@puspakamalbohara1123 2 жыл бұрын

Thanks vai 🙂

@shivajisharma5867 4 жыл бұрын

Thanks sir I am luck appki ye video dekhkr or sir app Android courses bhi shikhao

@SmartProgramming 4 жыл бұрын

@mumtazansari7716 4 жыл бұрын

deep+ak = deep about knowledge Thank you so much sir 😊😊 itna deep se batane ke liye

@SmartProgramming 4 жыл бұрын

@mumtazansari7716 4 жыл бұрын

After very time I got a complete course of java with deep knowledge.. M just searching more videos by your channel name..and I have checked all your videos.. thank you thank you thank you so much

@shaikriyaz5898 5 жыл бұрын

Could u please send me link of complete java package

@anjalisingh1494 4 жыл бұрын

You are such a great teacher sir...I am new in your channel but the way of your teaching is appreciated..... Thank-you 👍👍👍

@SmartProgramming 4 жыл бұрын

@anjalisingh1494 4 жыл бұрын

@@SmartProgramming thanku sooo much deepak sir

@CodeWithJhonny Жыл бұрын

before a month i think i have to quit java because i can't understand and i loss interest in java but randomly i watch urr video and i can understand single word in java and get my interest again . thank you so much sir ♥

@ankitrana7378 4 жыл бұрын

great..!!!! its very helpful

@gauravsaini45k91 4 жыл бұрын

Great sir

@vivekmishra7753 4 жыл бұрын

Sir aap samjate bhaut ache hai.. nice lecture sir ji...

@SmartProgramming 4 жыл бұрын

@sajid1310yy 3 жыл бұрын

Very well Explained...Thank You :D

@beulamohandas5746 5 жыл бұрын

'Out' is mentioned as object of printstream class in JAVATPOINT site rather than as static variable as mentioned in this tutorial. Please clarify

@pankaj90241 4 жыл бұрын

You are awesome sir.

@joetony6212 4 жыл бұрын

outstanding video with superb explanation of concepts and designs

@SmartProgramming 4 жыл бұрын

@mokshashah4643 3 жыл бұрын

So nicely explained, thankyou sir 👍👍

@SmartProgramming 3 жыл бұрын

@sarojnayak1732 5 жыл бұрын

Great Great Great..

@rohitg2502 3 жыл бұрын

Thank you so much sir ❤️ i am preparing for TCS 🔥 this is helping me alot thank you again❤️

@SmartProgramming 3 жыл бұрын

All the best. Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Amazon Store: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

@rajyalakshmimalla7409 4 жыл бұрын

Bahut kuch seekhney ko mila. Thank you so much sir

@SmartProgramming 4 жыл бұрын

@qaisermunir5085 3 жыл бұрын

is there any other teacher who can explain such wonderfull

@theharshvardhanagarwal 4 жыл бұрын

Itna Jaldi Java meine kabhi nahi sikha Sir, Thank you very much Sir!!❤️❤️ Ab basics Pani Pani ho gaya h!!

@SmartProgramming 4 жыл бұрын

@rahul-033 3 жыл бұрын

Great and understandable explanation, Thank you so much 🙏 to clear all confusion.

@SmartProgramming 3 жыл бұрын

Glad it was helpful! Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

@aslaminamdar3878 4 жыл бұрын

Sir ,aapke video bahot ache hote ham jaise bina computer background aur bina programming logo ko bhi badi asaani se samaj me aate hai. Sir, aap android studio ke introduction ke upar 1-2 video banao na aur ek app shuru se lekar o app ko play store me publish karne tak ka video banayenge to jo app banana sikh rahe hai bahot fayada hoga.request hai aapse

@SmartProgramming 4 жыл бұрын

Sure, Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming