#3 First Code in Java
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- เผยแพร่เมื่อ 2 ต.ค. 2024
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In this lecture we will learn:
Using the VsCode IDE
How to start VsCode?
How do we create a project?
Creating the first java code
Use of JShell to run small codes
Steps to compile a code in the terminal
#1
We will start doing coding in the VsCode.
VsCode includes Explorer, Search, Run and Debug, and Add Extension options in it.
You can add an extension if you want as per the VsCode recommendation like Extension Pack for Java.
We will create a project in Explorer.
VsCode itself has a terminal where you can run commands.
java --version - used to check the version of java
javac --version - used to check the version of java compiler
java command is used to run the code while the javac command is used to compile the code.
:- How do we create a project?
Project is a very broad term that is used when we create some files and merge these files with libraries.
We will create a new folder where we store all the files of our course.
:- Creating a first Java file:
-You can create the first java file in a folder like Hello.java.
.java is an extension of Java files.
#2
Creating our first Java Code to print "Hello World" :
JShell:-
We have a concept of JShell that is introduced in Java 9 where you can create small codes and perform operations.
Print is an inbuilt method in Java that is used to print anything and it uses with System.out like:
System.out.print(6);
System.out.print("hello world");
double quotes are used to print any text.
a semicolon is required after every statement in Java as per the syntax.
-JShell can't be used for doing projects, it is only useful for experiments or learning concepts.
Two steps to compile any code:
1. Compile the code using the javac command.
javac filename
2. Run the code using the java command.
java classname
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Thank u so much naveen sir beacuse of your videos i got a job in mphasis comapny and thanks a lot so I will cherish this moment in my life and finally thank u so much
People paying 20k+ for java courses...and then there is this man!
Top class teaching, interesting etc etc!
Great man! 👍
@Jitendra-zeremiah could you suggest other top java playlists..
I really appreciate the help you providing to common people who can't afford expenses courses. Thank you so much.
love you navin sir because you helped me so much through this course.Really it was helpfull to beginners
Weldone sir we are from Nigeria and we're always proud with u
Hey, is the name of your channel refer to the world in Telugu which means "learn"? If yes, very nice name haha
Yes, correct
I'm really glad that we have dark mode in IDEs, coding in light mode is very much a strain to the eyes
Hey, I watched the first two videos and gained motivation to learn Java. Thanks you teach free and its probably better than paid courses! Love from India ❤!
Congratulations on taking your first steps into the world of Java programming! Keep up the great work!
Kis application ko download karna padhta hai
@@Lakansha1801 aapki marji hai. woh vs code ko istemaal kar rha hai
Sir hats off for you .
Are you from Telugu states
I am Nagesh B from bangalore. Almost more than 200 my students I have subscribed. Really lot of the things I have learned. Better start doing videos on small projects using core java.
i m very new to java so i dont know where you brought that telusko terminal?????????????????????
How???
Same doubt
Heree too
his system name is telusuko. that's why it is showing like that.
Good question! I needed to check in another tutorials, sad!
Sir I am having a doubt..for printing hello world, you said the code will be System.out.print("Hello World") in jshell. Other than vs code compiler like online programiz what will be the code??
are bro its for every ide. ide just makes it simpler to write code. it is possible to write a whole website by notepad but it is hard
Heartiest Thank you sir❤❤🥲🥲
Thank you so much sir
Exit command is not working in terminal as it shows error like clear command.
Sir how you are opening that new terminal .. (For j shell) in windows it's not coming can you pls explain it clearly sir
Goto terminal and click on new terminal that's it . We can use jshell
Go to Terminal > New Terminal > Enter "jshell" and press enter
how in your vs code only course file is visible
in my vs code all files desktop files are shown including the file created in desktop
it makes it look clumsy
it's a new system thats why
All good, but is this video cut and merge of older videos, in last video you were using windows, vscode looked different but it is mac now
sir in command prompt java version is not showing its showing only java c version
what do sir
when i enter 'javac Hello.java' in the terminal even though the file exists it is giving an error 'File not found'. What should i do?
if exit doesnt work for you in Jshell try /ex or /exit
I am full fresher in Java
What a my luck 🤞❤️
Kuch smj nhi aah rha… I am not getting anything in this video
how did you open that terminal sir.....
Click on 3 dots bro on the upside and they is a option terminal
Sir how to open a terminal
how to open jshell
Why am I getting error for exit too...? 8:12
I saw many comments here about opening the terminal, if you see at 6:16 he is clicking on the terminal which is pinned to the bottom of his screen. Just that.
How do I open that
Yeah stuck on this.
Sir how you open new terminal on jsl...,?
How to open jshell...??
Yes...how?
I would like to install eclipse and vs code , So I am supposed to manage the JDK Kit @telus
Sir please make new video on spring
Anna Telugu Kuda Start Chey Anna 💗
you can explain in simple but you can do more complicated
I recently started this course and my vs code terminal is not working.Its saying that Java is not found when I'm trying to find my version as Java --version I'm getting an error
PS: I installed JDK 21 as it is LTS
Can anyone please help me
te amo pelado
Hello I just start this course.When I type javac Hello.java.It does not show error.
on 3rd episode , 5/24/2024
just to trace myself
I'm a beginner + eclipse user the difference in environment is confusing
10:00 You forgot to mention how to exit Jshell. Use the command /exit
At 10:06 and trying to do this step but it never works how can I do it?
sir why in my college they use println insted of using print
Sir you are going to cover all the topics in java
how he increase the mouse pointer for a whice at 4:30. HOW ?
Sir its showing package in system does not exist
S should be upper case in System.out.print(6);
Hello boss I am now downloading my setups and begin all other lessons with you
please add ajava project with full use of methods overriding over loading concepts and exception concepts etc..
unable to initialize device prn
12/5/24
Your course is too good and we are getting it from company but I need it with either intellij or eclipse
Do you have any course with eclipse or intellij
What is the difference between Vs code and eclipse
we are waiting for upcoming videos
Ur genius...........❤️❤️❤️
Sir we want more video's on spring boot for beginner
Excuse me sir system package is not exist it shows
What can I do sir
1st view
Hello sir g
Hello sir 👋
Sir love u sir
How to open this terminal in 6:21
hey, want complete together?
Great ...
Great Video
Great teacher
👍👍👍👍
Sir why are you uploading java videos on PW skills
🖖
👍
Ham First ham first
@telusko. Hi sir,One query here: jshell is possible via command prompt or terminal. Is it possible in IDE too like Eclipse and intell J. If possible may I know how can we do that??
Same doubt here🤔
same iI dont understand where to open jshell
@@shrishtigarg4674 it is easy ...just type jshall in terminal then it will open jshall commands.. promet
We can use it through terminal itself
Don't use dark theme
Why
@@chrisgardner9743 white theme always good
Sir when I compile the code javac hello.java it is showing my PS c/ user