Java Scanner Tutorial #14

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  • Опубліковано 13 жов 2024

КОМЕНТАРІ • 363

  • @alexlorenlee
    @alexlorenlee  11 місяців тому +5

    If you’re new to programming but want a career in tech, I HIGHLY RECOMMEND applying to one of Springboard’s online coding bootcamps (use code ALEXLEE for $1,000 off): bit.ly/3HX970h

  • @Nneoh1
    @Nneoh1 4 роки тому +114

    Alex you're amazing at explaining these things, thanks for helping me understand those basic topics!

  • @Nate-jg6il
    @Nate-jg6il 11 місяців тому +19

    This helped me really understand the Scanner Class better. I know this is a 4 year old video but it really helped a lot. Thank you

  • @zmyslowy27
    @zmyslowy27 5 років тому +61

    Worth to say that you can also use another method instead of using: quote += scan.nextLine(); you can also just type: scan.nextLine(); after previous int age = scan.nextInt();
    Also good idea is to use seperate method as:
    public int getInt() {
    int number = scan.nextInt();
    scan.nextLine();
    return number;
    }
    and just type for example:
    int numer = getInt();
    Overall great tutorial, im very new to programming myself so will use your videos for sure.

    • @Martin-jf4ji
      @Martin-jf4ji 4 роки тому

      dude i was having problems with my paper on passing scanners as perimeters thank you very much!

  • @zorogotbandz1148
    @zorogotbandz1148 4 роки тому +33

    Bro I gotta let you know how much your videos helped me out this semester, the language barrier with my professor made it really difficult to understand things and class, but actually learning a lot more here than in class 😅, but anyway thanks bro your really going save me this semester

  • @bhargavsai2449
    @bhargavsai2449 4 роки тому +144

    System.out.println("thankyou sir");

    • @peacequest2
      @peacequest2 3 роки тому

      Why println

    • @Steven-ke2ss
      @Steven-ke2ss 3 роки тому

      @@peacequest2 ln is short for line, so the linputed line will be printed which is 'thank you sir'

    • @ishworghimire3017
      @ishworghimire3017 3 роки тому

      @@peacequest2 to break line

    • @ishworghimire3017
      @ishworghimire3017 3 роки тому

      @@Steven-ke2ss hlo

    • @peacequest2
      @peacequest2 3 роки тому

      @@ishworghimire3017 yeah i know thx

  • @FootballJunk
    @FootballJunk Місяць тому +1

    I know python and finding it really hard to get into java for like couple of years and then i quit on java because there was no resources to learn as easy as it is in python. Then this dude came in, man i do not appreciate anyone because of my ego but u dude u killing it. Your “learn java in 14 minutes” video popped in my feed i watched it with a mindset that how much an idiot one can be who is teaching java in 14 minutes. I watched and kinda liked it. Now here i am watching full course of videos and learning java. U nailed it man. Loved it and I appreciate how easy you made it to understand. I am learning java again and finally i feel i will do a careeer switch into java , thanks to u man

  • @aliobaidi8374
    @aliobaidi8374 3 роки тому +1

    You are a true savior. I was really confused and you explained everything to me. God bless you.

  • @nazazhdar9697
    @nazazhdar9697 2 роки тому +2

    im lowkey crying because of how good you explained this, my teacher left it out and said do it on your own, at first i was very scared and wanted to skip it and not do it but then i came across your video and ive never understood anything better than ive undertood this, thank you so muchh!!

  • @jorgerivera7008
    @jorgerivera7008 5 років тому +56

    YOU helped my pass my final! Thank you for being so in depth, yet simple! Best tutorial vids!

  • @omarsuleiman9109
    @omarsuleiman9109 3 роки тому +7

    Why was that so much harder for my professor and boss to explain but this makes it seem like it’s kindergarten easy!
    Thanks so much for breaking it down Barney style! I learned in 12 minutes what I couldn’t for a whole day! Thanks 🙏🏼

  • @alyst79
    @alyst79 2 роки тому +1

    I have been struggling with java so much. thanks a lot for your videos

  • @nazeernero6887
    @nazeernero6887 7 місяців тому

    Hey Alex, I just started in college. I'm doing a Diploma in Network Systems and one of my modules is Java Programming. All my lessons are on ColCampus so I can't physically interact with my educators which is really a challenge, they don't make content as easily understandable as you do, I find myself very frustrated at times not understanding what to do, however I find your content really helpful. Thank you so much.

  • @michaellabeltran3807
    @michaellabeltran3807 4 роки тому

    School from home is hard, because sometimes we are having trouble with internet connection and I cant often understand my instructor. What I do is I go to your youtube channel and I undertand your video really well and it helps me to answer my profs activities. Thank you so much!!!

    • @michaellabeltran3807
      @michaellabeltran3807 4 роки тому

      You explain every topic really well , it is easy to understand and i find myself going back to your channel eveyday to learn something new

  • @raenamcintosh
    @raenamcintosh Рік тому +1

    thank you so much. java is so much harder for me than python and this is the only resource getting me through my classes

  • @ruchikakudaskar2736
    @ruchikakudaskar2736 5 років тому +154

    *0.06* Scanners aren't taught very well !!! I felt that and i used to think that i was the only one facing issues with scanner input :(

  • @cagla3360
    @cagla3360 2 роки тому

    thank you so much! this is my first year in computer science and my professor doesn't upload any lecture notes to our school's website. I was hopeless about studying before I found your channel.

  • @alexandrahulett946
    @alexandrahulett946 4 роки тому +3

    I just learned more two minutes into your video than a whole week in class. Thanks!

  • @milkonion
    @milkonion 3 роки тому +1

    I always used scanner lol but never truly understood what I was doing when I thought about it.
    now its crystal clear

  • @AleX-cc2dl
    @AleX-cc2dl 4 роки тому +2

    You have excellent teaching skills. Glad I found your channel. While others simply explain what to use and what the result is, you explain why to use it, and thus makes perfect sense in one's head. Thank you!!

  • @lucaslisboacoletti8752
    @lucaslisboacoletti8752 3 роки тому +1

    I don't use JAVA for absolute anything but i came hearn to learn it from time to time just because u are awesome teatcher. srsly.
    Planning on put your voice on a Lo-fi beat atm.

  • @tell1998
    @tell1998 2 роки тому

    Thank you for this video. I'm currently taking Java Programming for my online class and it's online only. I work full time and am a college student full time so I have little time to study and fully take it in. I haven't fully read Scanner and was a little confused from it (if I had more time I would fully understand) but being able to watch your video and get a better explanation helped me understand it better. Thank you

  • @larrys5904
    @larrys5904 2 роки тому

    First time I completely understood a tutorial on the first watch. Thank you!

  • @ikouve
    @ikouve 2 роки тому +1

    The beginning is so true:"if you like me, you may not have had a great java teacher"!. So true, SO TRUE!!!

  • @gioralphpusta4676
    @gioralphpusta4676 3 роки тому

    Thankyou sir. I liked the way to teach very detailed and its good that you do recap to make sure every line is clear. Thanks from a student of firstyear college from philippines

  • @kiaholyfield92
    @kiaholyfield92 4 роки тому +2

    This is one of the best tutorials I have seen! Thank you!

  • @adengouled9614
    @adengouled9614 3 роки тому +2

    I'm sure you've heard it before but you're a really good teacher!

  • @jessicaandrade3706
    @jessicaandrade3706 Рік тому

    I’ve watched like 20 videos and this is the only one that answered all my questions ur Amazing!!

  • @afonnechijindu4378
    @afonnechijindu4378 2 роки тому

    Thanks Alex. Your explanation is top notch. Before now I wanted to skip that scanner sh*t but I could now play around with it. Thank you. AC from Nigeria

  • @nafizatasnim4691
    @nafizatasnim4691 3 роки тому

    yur a genius! yu solved my all problems that I have in java program.
    yu made my life easier xxxx....

  • @mcjohnbolivar
    @mcjohnbolivar 4 роки тому +1

    this is the lesson that i am looking for, teaching every codes uses. my professor teaching as to code but not teaching as how the code works.

  • @kookiekookie769
    @kookiekookie769 3 роки тому +1

    One of the best tutorials I've ever seen thanks Alex you're amazing

  • @dovydasbalciunas5002
    @dovydasbalciunas5002 Рік тому

    Man, you really deserve to have over million subscribers. I like your teachings && I hope in the future I'll become like you!
    Thanks for the teachings! :)

  • @kylotupaz8781
    @kylotupaz8781 3 роки тому +1

    Thankyou for this Tutorial Alex Lee! This saved me understanding our lesson!!!❤️

  • @jmatoya1
    @jmatoya1 3 роки тому

    Not even the book explains it this simple. Thank you so much

  • @neilcuts5771
    @neilcuts5771 4 роки тому +1

    you explained way better than my instructor ..

  • @RaviPushkar
    @RaviPushkar Рік тому +1

    Thank you Alex, just because of you I'm going to start Java on my own

  • @nookincsmama5545
    @nookincsmama5545 3 роки тому

    your a life saver, my teacher doesn't teach at all so this really helped

  • @ravipitta3388
    @ravipitta3388 3 роки тому +1

    Great tutorial, Alex! You've earned yourself another happy camper!!

  • @Gustas100
    @Gustas100 Рік тому

    I wanna be a programmer in the future, i just started doing programming, and this really helped, thanks

  • @Neoscarface6342
    @Neoscarface6342 3 роки тому +4

    I dont know who you are but you may have saved my semester

  • @gyabi7785
    @gyabi7785 3 роки тому

    This was so amazing! I have an exam today and you helped me understand Scanner in detail with a wonderful program. TYSM!!

  • @patrickmyers2888
    @patrickmyers2888 5 років тому +1

    These videos are so clutch, thank you so much! I hope you continue to make these, they are super valuable.

  • @marvinramirez5318
    @marvinramirez5318 4 роки тому

    Thanks man I am building a big java project through out the semester and your videos are helping

  • @IvY-zk1iq
    @IvY-zk1iq 4 роки тому +1

    Thanks Alex, love your simplicity. ♥️

  • @butch2198
    @butch2198 3 роки тому +1

    thanks bro, you saved up my finals, I can now enjoy my christmas break :).

  • @AndersJackson
    @AndersJackson 2 роки тому

    In Eclipse, use Ctrl-Space when you have typed Scan, and you will get expansion and also imported Scanner in one go.
    I usually have System.out.print() and not println() to print prompt for telling the user what to enter.
    Scanner should also be closed before the program exits, which could be done with try-resource.
    try (Scanner in = new Scanner(System.in)) {
    String name = in.next():
    int age = in.nextInt();
    }
    And you should probably use printf() instead of println()/print() when printing out values. As you have way better control of formating the output.
    I love how you solve the problem with mixing next() and nextLine(); I will take that with me.

  • @ajlib
    @ajlib 6 днів тому

    Thanks for your vids bud. Learning is great.
    In the quote bit, why wouldnt you just use String quote = scan.nextLine(); to begin with? Surely that works?

  • @jawedsadat9796
    @jawedsadat9796 4 місяці тому

    I love the way you teach sir. Thank you!

  • @alaquics5107
    @alaquics5107 4 роки тому

    I’m just a 10 year old kid trying to learn java and now I know a lot!

  • @jiyachhabria4795
    @jiyachhabria4795 3 роки тому +1

    IT WAS EXPLAINED SO WELL, OHMYGOD. THANK YOU THANK YOU THANK YOU! I guess I won't flunk computer science this year after all.

  • @Agharnaaa
    @Agharnaaa 3 роки тому

    glad i found this channel, just what i needed! im experiencing hardships in my first year in IT :

  • @American_2
    @American_2 Рік тому

    You are still helping lives

  • @FraserFox1
    @FraserFox1 3 роки тому

    I had six epiphanies in the first four minutes of this video, thank you for teaching me in 12 minutes what my prof couldn't teach me in two weeks of classes!

  • @mohanish3169
    @mohanish3169 5 років тому

    Yo Alex, your video helped me solve my problems and your way of teaching is simple. Thanks bud!

  • @Algebraiic
    @Algebraiic 2 роки тому

    Hey Alex I just wanted to start this comment by saying THANK YOU for this tutorial; you were very clear and concise with your explanation and this helped me out a ton.
    One quick question: How come you weren't required to close your scanner object by typing "scan.close();" at the end of the method? I just finished working on an assignment using Visual Studio Code; however, it wouldn't run it because I was missing that statement. I am not sure if this is something that varies according to what IDE one might be using, but any clarification would be greatly appreciated!

  • @tressaortiz2078
    @tressaortiz2078 4 роки тому +50

    feel like he would hold me while i cry because i am going to flunk out of school

  • @sauravneupane1620
    @sauravneupane1620 4 роки тому

    Ia m doing MOOC java program and I couldn't understand from text. So, I saw Ur video and did it and it worked, Thank You

  • @kristendelaney5196
    @kristendelaney5196 Рік тому

    Great explanation... could you talk about .close()-ing the scanner?

  • @ErnestoConfused
    @ErnestoConfused 2 роки тому

    For the next 24 hours, you are my favorite human of all time.

  • @mcjohnbolivar
    @mcjohnbolivar 4 роки тому

    this is the best tutorial for scanner in java. cool, good job now i know how scanner work in java

  • @creepycreeper1127
    @creepycreeper1127 4 роки тому +23

    Why do we have to get the first word with scan.next() and then get the rest of the line with scan.nextLine()? Is there not some way to just get the whole line from the start? It seems like extra work...

    • @afifkhaja
      @afifkhaja 4 роки тому +4

      I think you can just use nextLine() by itself

    • @MichaelLee-jm7mo
      @MichaelLee-jm7mo 4 роки тому +1

      @@afifkhaja you think? or does it work 100%?

    • @afifkhaja
      @afifkhaja 4 роки тому

      @@MichaelLee-jm7mo 100%

    • @akshaydeogaonkar7120
      @akshaydeogaonkar7120 4 роки тому +5

      @@MichaelLee-jm7mo It doesn't work...
      Actually, I got in here because of this issue only...

    • @jonahosband4534
      @jonahosband4534 3 роки тому +4

      @@akshaydeogaonkar7120 the reason he does that is because nextline() takes unused previous inputs as well as the remainder of a string. The previous method he uses is nextInt() which returns an integer value and when he hits enter the nextLine() method would read that previous enter as the input and not take what you want to input because the nextInt() method does not include the enter which is read as a string so therefore if you just used nextLine in that case it would pick up the enter and return a that before you can enter the code. Sorry if that seemed all over the place. I’m a college student self-learning and that’s how my CS friends explained it to me.

  • @josephcarcedo83
    @josephcarcedo83 3 роки тому +2

    Hey, Alex, You made my schooling easy, Thank You :>

  • @umarujan9194
    @umarujan9194 3 роки тому

    You got my like and subscribe sir, you just gave me an idea for my Midterm projects. plus you explain it very well! Thanks again sir.

  • @graedenbird3020
    @graedenbird3020 3 роки тому +1

    You're an amazing teacher!!!!!

  • @aadityarane9108
    @aadityarane9108 4 роки тому +1

    It helped me a lot especially in this pandemic condition

  • @darkdrift0r124
    @darkdrift0r124 2 роки тому

    You teach better than my lecturer thank you

  • @Leo-jz3tu
    @Leo-jz3tu 4 роки тому

    Very good and thorough explanation bro

  • @deusvidens
    @deusvidens 3 роки тому

    thanks sir this helped me very well in my studies

  • @viraltube4733
    @viraltube4733 2 роки тому

    love your tutorial its very clear and easy to understand

  • @JaspaPanatoi
    @JaspaPanatoi 5 місяців тому

    Thank you brother. The content is very very clear and helpful

  • @GoatMan64
    @GoatMan64 2 роки тому

    Bro, thank you so much for this tutorial, I love your vids.

  • @leidylu7866
    @leidylu7866 3 роки тому

    Hola there! Thank you so much for all the videos about Java functions, they are so great! You make it fun to understand!!! Very helpful now that I am getting in the crazy world of programming ☺️☺️

  • @tonydo8189
    @tonydo8189 4 місяці тому

    Hello Alex! Great content! I noticed you didn't closed the scanner using scan.close(). How come it's not required here?

  • @kalayakgosisam8816
    @kalayakgosisam8816 2 роки тому

    Man!! You are Great🔥🔥you make everything so easy

  • @mujeebhiwadwal3573
    @mujeebhiwadwal3573 3 роки тому

    Thank you Alex this video really help to write my first program as beginner
    package contitionalstatmentsloop;
    import java.util.Scanner;
    public class Scannerexp {
    public static void main(String[] args) {
    Scanner scan=new Scanner (System.in);
    System.out.println("inter your first name");
    String name=scan.next();
    System.out.println("inter your subject");
    String subject=scan.next();
    System.out.println("inter your exam score");
    int examscore= scan.nextInt();
    if (examscore >= 90 ) {
    System.out.println("your Pass and your grade A");
    }
    else if (examscore>=80) {
    System.out.println("your pass and your grade is B");

    }
    else {
    System.out.println("your field ");
    }

    System.out.println("Thank you "+" "+name+" "+"yours are subject is = "+ ""+subject+ " "+"your result"+" "+examscore);
    }
    }

  • @Snoleo22
    @Snoleo22 4 роки тому

    Hi Alex, thank you for this super helpful video! Could you also explain how to close Scanner? How important is it to do this?

  • @rogadev
    @rogadev 4 роки тому

    This is all fine and well... I'm having problems with scanners inside of loops and methods. Any links to good videos describing where I might be going wrong?

  • @cjm101
    @cjm101 4 роки тому

    Alex you are Awesome man!! thank you so much for your videos. i am studying java on a well known site and it is good but i always check youtube videos and you are very consistent on making java Understandable! thanks so much for what you do for us inspiring to get into programming.

  • @ZachandAllison
    @ZachandAllison 3 роки тому

    these are amazing! thanks for all of your help! I still feel a little lost in Java but your helping so much

  • @Fangli799
    @Fangli799 3 роки тому +1

    Thank you very much! Alex

  • @alitahboub493
    @alitahboub493 2 роки тому

    THANK YOU YOU MADE THIS SO MUCH EASIER FOR ME!!!

  • @mohammadsattar9033
    @mohammadsattar9033 4 роки тому +1

    Hi Alex ,Thank you for scanner and other tutorial for java. Please make a Tutorial with Array with repeating number, random number, and index number. Thank you for your time.

  • @fadzaishechamunorwa7810
    @fadzaishechamunorwa7810 3 роки тому

    thanks Alex your videos are so helpful. i dont know how else to show my gratitude, Thank you. i am at better position now. i hope i pass...

  • @JusticeRicksUWG
    @JusticeRicksUWG 3 місяці тому

    bro just casually makes my life easier and saves my gpa!

  • @euniceannjavier5041
    @euniceannjavier5041 3 роки тому

    Thank you for explaining these things. Your videos helped me a lot!
    God bless you.

  • @AayushBartaula
    @AayushBartaula 4 роки тому

    Thanks brother for me you work like parttime mentor whom i can visit whenever i want and you are always available

  • @BlissAngel-eu4rq
    @BlissAngel-eu4rq 11 днів тому

    You are a good teacher

  • @ChamathH26
    @ChamathH26 Рік тому

    Couldnt leave without a comment,
    Amazing 🙌

  • @smithargaonkar3580
    @smithargaonkar3580 3 роки тому

    You are better than my teacher ❤️😁

  • @byrondelavega9690
    @byrondelavega9690 3 роки тому

    Awesome video. The part of the shortcuts its amazing help us a lot

  • @ramil8029
    @ramil8029 3 роки тому

    Thanks a lot for this tutorial! Java Software Solutions by Lewis and Loftus was really confusing when explaining scanners (Chapter 2.6). You made it so much easier to understand!

  • @Ben_in_4k
    @Ben_in_4k 3 роки тому

    didnt really understand it but understood it more then when i started but i was trying to add double variable inputs

  • @wallace3199
    @wallace3199 3 роки тому +1

    very well explained! 👍

  • @austinrivers7677
    @austinrivers7677 2 роки тому

    Im just here because i thought my strand ICT was just focussed on hardwares but its not
    Thankfully Alex is here

  • @IDOLL_Dev
    @IDOLL_Dev 3 роки тому

    What a good refreshing video! I like how you went over the basics of OOP when you talked about the Scanner object.
    Seriously though, where can I get that keyboard? If anybody knows please tell me 💕

    • @desibrothers9616
      @desibrothers9616 2 роки тому

      try searching up vintage mechanical keyboard

    • @IDOLL_Dev
      @IDOLL_Dev 2 роки тому

      @@desibrothers9616 Thanks, I'll do that!

  • @aayushadhikari84
    @aayushadhikari84 Рік тому

    Dude youre the realest, thank you for the explanation.

  • @ofek5365
    @ofek5365 4 роки тому

    Thank you Alex
    You explain this very good

  • @chinmayeemishra6968
    @chinmayeemishra6968 3 роки тому +1

    We all need to get his man more subs ASAP

  • @alexandretp5665
    @alexandretp5665 4 роки тому

    Thank you Alex. You are a great teacher!