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In this part of my Java Video Tutorial, I cover Java Regular Expressions. You use regular expressions when you want to search for data. You then use codes to define what that data looks like. It is much easier than you can imagine.
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I was trying to get a grasp of what regular expressions are. I read some documents but I got lost. this is video shows exactly what I wanted to know. very good explanation with a clear voice, thank you
Thanks
You are such a good teacher, God Bless.
anyone from northeastern university … learning for the final exam
Even though it's been over 7 years since you uploaded this serie of Java Tutorial it helps me a lot. Love your work man.
I am confused .What if there is Darek$ and we just want derek and make a token. How do you seperate those?
Anyone here on October 2019 LOL
HI FROM MEXICO, U ARE A FUKING GENIUS THANKS A LOT FOR THIS VIDEO REGEX IS PAIN INTHE ASS FOR ME
is java.util.*; equal to java.util.regex.*; If yes is it necessary to remember all the packages these tutorials mentioned(for job interviews). Thanks the tuts helps a lot.
Is it possible to generate single REGEX for list of similar Strings ….. I mean I want to give more than 2 strings as input
Put your headphones, and guess What the heck on earth is he saying at the very first seconds of the video, and turn the volume up!!!!!
this formed the basis of my lexical analyzer for compilers, thank you!
0:00 "WOWOWORNENENE"
for the phone number check, does it allow there to be only one parenthesis? ie (412-555-1234
and if so, how do you ensure that if one is present, the other must be present?
Hey Derek, this is a wonderfull tutorial series so far but I was wondering if it is still relevant today? I'm asking because a proffesor of mine in university says that Java tends to change a lot with each update.
Thank you – it helped me a lot in understanding this topic!
Great work man..! Hats off..! Keep the good work up:)
You should've explained a little more what a pattern and a matcher is
You are the Java God!
Really nice and helpful video
Thanks for your efforts 🙂
Write a Java code using Regular Expression that is going to sort out all cell phone numbers and print out the operator.
Grameen: 017
Banglalink: 019
Airtel: 016
Robi: 018
* +0172-4094636, 0172-4094636, +0172-409-4636 are only three right patterns.
You are amazing….big fan of you..cant spend one day without watching your videos…..so simple and awesome and amazing…..thank you so so sooooooo much…:-):-):-)
Clean , simple and direct. Tks
I can't believe this tutorial made me understand regular expresions. Thanks Derek! Great teacher you are!
The funny thing is that I don't understand the string.split and how comes it has indexes. Nobody does tutorials on that
Can you share parts of your brain? I need some.
Wow wow wow I’m so happy
really good video, but difficult to follow and you assume the viewer knows a bunch of stuff already, which is fine, just that it wasn't my case
You're a lifesaver man. I just can't thank you enough for your videos.
@12:41
if I put my regex like this: [A-Za-z0-9%_-.]+@[A-Za-z0-9._-]+[A-Za-z]{2,4}
notice the period symbol is at the end of square brackets
it throws an exception:
java.util.regex.PatternSyntaxException
why??
so happy to find this
In my longString my first name disappears why??
Can you please explain me what is the meaning of this expression "^(?=.*[a-z])(?=.*[0-9])"
If I have to find number like 12345 after AK what logic can be applied?
What if you don't want to match the "_" (underscore) symbol?
At 5:33, why does 'Derek' end index is 7 and not 6?
Moreover, why doesn't 'Banas' also a part of the output?
13:28 – "It looks really really hard, but it's really really not" – this should on a wall of every workplace/classroom