Primitives Data Types In Java - All the Primitives And What They Do
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- čas přidán 9. 03. 2021
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What are all the Primitive data types in Java, and what are they used for? We'll talk about all 8 Java primitive types, what you can store in them, and how to create them.
This is a beginner friendly Java coding lesson tutorial, where we'll talk about all 8 primitive data types.
Learn or improve your Java by watching it being coded live!
Hey, I'm John! I'm a Lead Java Software Engineer who has been in the industry for more than a decade. I love sharing what I've learned over the years in a way that's understandable for all levels of Java developers.
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You are awesome! I loved this tutorial and now I am clear with this topic. Please keep going. You have a new subscriber.
Watching this in comp class is a truly blissful thing thanks for making these videos
Best explanations i've found. Thanks!
Thanks for taking your time to explain primitive data types.
Thank you so much for best tutorial, keep continue. Full support and love
very dedicated and mature content for me. love this. thanks for your time and dedication.
Incredible, thanks for doing this
i do hope your channel have everything about java, coz i was a failure back in college, i took computer science as my degree, and now, i want to redeem myself in life. thank you soooo much for this by the way
JUST STARTED TO STUDY JAVA AND YOU EXPLAIN REALLY GOOD
Thanks, John, your videos are awesome!
THANK YOU BROTHER, YOU TEACH BETTER THAN MOST PROFESSORS GOD BLESS YOU
Char is also a whole number data type and stores the ascii value, so you can do calculations with it. That comes in handy lots of times where I work ^^
Thank you Bro! Its easy to follow
Great video John! I've been watching a whole bunch of your tutorials as I aspire to become a Java backend engineer, and they've been really helpful! About chars, I found them to be a lot useful when looping through strings in "for each" statements, do you know a better way to do so? Thanks again for the great content!
So this doesn't exactly answer your question, but one interesting use of looping with chars is when you need to do something alphabetically, like this example from a chess program:
private static Stream generateAllSquares() {
final List squares = new ArrayList();
for (char file = 'a'; file
Very easy to understand,Great jobbb
will make sure watch ur vid every week
keep it up
I just went and bought your bootcamp, John. Wow, you really have a knack for making this easier and more enjoyable. Thank you, I was worried about passing the college course I am currently taking; I'm not worried any more. In fact, I just ran a practice test I had gotten in the 60s three times prior and this time got a 77%. Thank you so much!
I'm so glad it's helpful, thank you! I just added a set of lessons on the Collections framework last night, and always working on more!
An incredible video from John
I like your videos. Thanks John!
Omg you explain this so much better than my professors! Thank you!
Absolute gold explanation
Good explanation Mr. John. Actually I want to know about "how to handle primitive data types in java? " Please explain it .✨
Thank you for the help
thank you so much my java teacher is the worst teacher ever but thanks to you I can actually learn. Big help
You nailed it ❤❤
Thank you sir.
Do you have any videos that talk about non-primitive data types?
I have been traveling on Earth with Java for 10 years just 5 miles, but after watching your approx 10:23 minutes tutorials I have traveled with java 24,887.64 miles which is exactly the circumference of the Earth. Thank you soo much for making everything too easy to understand.
Well appreciated appreciation comment
I came back to this video because I just watched a video of a guy doing a 6 billion point combo in Tony Hawk Pro Skater 4. When the game finally tallied it up, it didn't get past 1.6 billion even though the combo did, in fact, add up to 6 billion. So the programmers must have used int instead of long. If only they could have foreseen the jump in human evolution from 2003 to now. No one was capable of such things back then.
the byte type is pretty useful to handle binary data byte by byte
Wonderful
i like that kramer painting in the back. and also the video.
wow. brilliant
i like your style
I am taking a web design class and in my assessment I have to have 2 char's in a row. The first char works. But I can't seem to get the second char to work correctly? What am I doing wrong?
Love from India
May God bless you and your family.
Great video but I would like 1.5 or 2 times slower :) - But very good explained
thank you thank you
Why is it always the short videos that helps more than an hour video
is there any video that ı can find class as data type? ı mean you create public person mother inside the person class and ı dont understand
Do you have discord group to java studies ?
if I were to use "boolean" is there a way to have the "user" input "TRUE or FALSE" when I run the program for the variable?
Do you mean, if you use a Scanner to read the user input and decide if they type 'true' or 'false' ?
A little example I made of that scenario here just using the Main class for simplicity's sake (you have to import the scanner for this to work):
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
package (name of your package)
import java.util.Scanner;
public class Main{
public static void main(String[] args){
checkForUserInputWithBoolean();
}
public static void checkForUserInputWithBoolean() {
Scanner scanner = new Scanner(System.in);
System.out.println("Are you a human? Answer 'true or false' ");
byte checker = 0;
while (checker == 0) {
try {
boolean userAnswer = scanner.nextBoolean();
if (userAnswer == true) {
System.out.println("You are a human being");
checker = 2;
}
else if (userAnswer == false) {
System.out.println("You are not a human being
");
checker = 1;
checkForUserInputWithBoolean();
}
else{
checker = 0;
}
}
catch (Exception e) {
System.out.println("Wrong input, must be true or false
");
checker = 1;
checkForUserInputWithBoolean();
}
}
}
}
thankssss
If we want to store larger value than long data type( > 9,223,372,036,854,775,807) then , how we can store it ?
Check out BigInteger: docs.oracle.com/javase/7/docs/api/java/math/BigInteger.html
Can i do this on Android using java N-IDE?
Personally I feel lower case L is 'wrong' solely because at a glance it could be easily mistaken for a 1. I think Upper case is clearer.
I don't understand how a programmer decides which type to use. Should I just primarily use int? If I use int for a small amount of data am I misusing the type?
no. but if your number exceeds 2 billion you need to use a long. people dont just always use long bc it takes more time to run.
I prefer capital 'L' for longs, l looks too much like 1 in certain fonts (like yours :))
annotations in java
My son Nathan asked me to comment here. He is saying that boolean data type is not there in Scratch coding language.
Interesting, thanks Nathan! I haven't used Scratch yet but I've heard a lot about it, I'll see if I can learn something about it and see if there's a boolean equivalent in Scratch.
@@CodingWithJohn Hey John. Thanks for the response. Nathan was excited when I told him "Hey John replied" :-) Btw I watch your videos. Love the way you explain. Great pronunciation, intonation, clarity and no unnecessary details. Waiting for more .. :-)
Using lowercase L is evil, considering 1 and lowercase L look the exact same
You guys call it "char" but when it is character, you call it is as "karacter". May i know the logic behind this 🤦
Char is an actual word. It's the black stuff when you burn something. Char is pretty unique because most words that start with 'cha' has a 'k' sound.
not logic just a intricacy of the English language
@@timbo2legit2quit like a charred marshmallow for example
You might want to have done this in your first 10 videos, and not around the 40th.
but i need a jillion datatype
Hmmmmmm try BigInteger. Not a primitive, but essentially only limited to the amount of memory you have.
10lbs of... do I actually know what tho ? ;)
it's million billion trillion quadrillion quintillion sextillion septillion octillion etc
My bank account is measured in byte.
System.out.println (" You are totally Pro myFriend!!"); And Subscribed already..