Java read CSV File 📰

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  • Опубликовано: 22 авг 2024

Комментарии • 102

  • @BroCodez
    @BroCodez  4 года назад +10

    IMPORTANT NOTE: If values in your CSV contain commas naturally, they will be split. (Ex. $1,000). If this is the case, replace:
    String[] row = line.split(",");
    with
    String[] row = line.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)");
    ^ This is regex and is very complicated. It looks for string patterns. Explaining this requires another video entirely.
    //******************************************************
    import java.io.*;
    public class Main {
    public static void main(String[] args) {

    //CSV = Comma-Separated Values
    // text file that uses a comma to separate values

    String file = "src\\students.csv";
    BufferedReader reader = null;
    String line = "";

    try {
    reader = new BufferedReader(new FileReader(file));
    while((line = reader.readLine()) != null) {

    String[] row = line.split(",");
    //String[] row = line.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)");
    //use this if your values already contain commas
    for(String index : row) {
    System.out.printf("%-10s", index);
    }
    System.out.println();
    }
    }
    catch(Exception e) {
    e.printStackTrace();
    }
    finally {
    try {
    reader.close();
    } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }
    }
    }
    }
    //******************************************************

    • @anandtandon6489
      @anandtandon6489 9 месяцев назад

      Doesn't work if there are empty cells in the csv :(

  • @Confusedcapybara8772
    @Confusedcapybara8772 Год назад +2

    Still the best coding channels on yt. love you bro

  • @scilesful
    @scilesful 3 года назад +15

    any ideas about how to store values directly in a 2-Dimensional array?

  • @AwaidhGaming
    @AwaidhGaming 2 года назад +4

    You helped me in each and every step of my project ...Thanks

  • @ignacioleonmorales7225
    @ignacioleonmorales7225 2 года назад +3

    Bro thanks for your video, it helps me a lot. I'm starting in java programming, so it was very usefull.

  • @lucyledezma709
    @lucyledezma709 4 года назад +4

    Hi!. Your videos are so useful!. Thanks for share!

    • @BroCodez
      @BroCodez  4 года назад

      Glad you like them!

  • @frozen1093
    @frozen1093 2 года назад +1

    Lol i saved it as csv but it was separated by ; and had to separat it by , manually
    Thanks for the tutorial!

  • @hristogeorgiev6531
    @hristogeorgiev6531 3 года назад +11

    Bro very helpful tutorial. But what if I need to save each column in a separate array/ArrayList? Do you have a video where you show something similar?

    • @willvall7868
      @willvall7868 2 года назад +1

      do you found any solution for that problem?

    • @hristogeorgiev6531
      @hristogeorgiev6531 2 года назад +1

      @@willvall7868 Could you give me some more context to your problem? I found a solution but as you can see the comment was posted a year ago.

    • @willvall7868
      @willvall7868 2 года назад +1

      @@hristogeorgiev6531 as you already told by yourself :) np. I found a solution by myself. But thank you for caring :D

    • @hristogeorgiev6531
      @hristogeorgiev6531 2 года назад +1

      @@willvall7868 The problem is I myself don't remember what I was trying to do. Glad you found a solution though!

  • @kafwankamunshimbwe9235
    @kafwankamunshimbwe9235 2 года назад

    Your video helped me out big time with my lab

  • @svetlanamazhaykina6918
    @svetlanamazhaykina6918 3 месяца назад

    Thanks for your work! Well done!

  • @janetkalu3064
    @janetkalu3064 Год назад

    Thank you Brocode, you rock my tech world.

  • @Alan-pz9gf
    @Alan-pz9gf 3 года назад +6

    Appreciate the video. By any chance do you have a how to write in a csv and how to place the info in a javaTable?

    • @vijayp9870
      @vijayp9870 2 года назад

      Can you share how to write in csv

  • @heavencanceller1863
    @heavencanceller1863 2 года назад +1

    Your videos are a blessing

  • @chaer7898
    @chaer7898 4 года назад +1

    Here bro sorry but I think I agree with guys comment.hope you can make a course on what he is saying cuz it will be great!!! Hiro code I love your videos hoping you will add java applet to your java course and we will do game development like creating adventure games and also we will do some algorithm and data structure and it will be more fun if we learn it through game development like development a sport game!!!!! thanks for video it has help me a lot......

    • @BroCodez
      @BroCodez  4 года назад +2

      Well it does seem that the game tutorials have been doing well...

    • @chaer7898
      @chaer7898 4 года назад

      Yeah so add more gaming development tutorials and aslo Java applet bro

  • @Saikumar_Miryala
    @Saikumar_Miryala 3 года назад +2

    if the commma consists in between value then it fails

  • @muhammadsalah3981
    @muhammadsalah3981 4 года назад

    Very good and clear illustration bro ❤

  • @mohamedal-ziadi5640
    @mohamedal-ziadi5640 3 года назад +5

    Very Helpful video thanks. Do you know how to convert CSV file to Java Objects?

  • @simpleton7758
    @simpleton7758 2 года назад

    very helpful~thank you so much.

  • @SeasonedChicken5
    @SeasonedChicken5 3 года назад +6

    How would you go about storing it in a 2D array?

  • @honey30prachi
    @honey30prachi 2 года назад

    Simple and helpful video.

  • @tanmaytrivedi8188
    @tanmaytrivedi8188 2 года назад

    Informative video for me actually i am a cse student and i want to read from csv and perform some operation on it and print it in pdf form . I will use concept to read from csv .

  • @raqiburrahman2666
    @raqiburrahman2666 3 года назад

    Thank you so much... It works well

  • @Wadkar07
    @Wadkar07 2 года назад

    bro u really make it easy every time, thankx for that, but one thing i want to know is what is the name of the song which u have in intro

  • @palo8818
    @palo8818 2 года назад

    I love your tutorials

  • @ruturajpal6500
    @ruturajpal6500 Год назад

    thanks for the code and video

  • @t_min_o
    @t_min_o 2 года назад

    Bro, helpful video, thanks a ton!. can you also make how to do it using apache csv parser please
    ?

  • @user-gi1vc5qt6p
    @user-gi1vc5qt6p Год назад

    superb

  • @aniketchopra5061
    @aniketchopra5061 Год назад

    great

  • @cristianbau2353
    @cristianbau2353 7 месяцев назад

    you saved me thank you man

  • @user-vs9cq9nm5x
    @user-vs9cq9nm5x 10 месяцев назад

    the best channel

  • @relaxingmeditationmusic9761
    @relaxingmeditationmusic9761 3 года назад +1

    How do i start reading the file at like the 3rd row?

  • @gerdsfargen6687
    @gerdsfargen6687 Год назад

    OpenCSV and streams work great together though.

  • @user-mv4qh2jt7d
    @user-mv4qh2jt7d 2 года назад

    Thank you!

  • @darpyy8102
    @darpyy8102 10 месяцев назад

    wow!

  • @sabermmirza
    @sabermmirza 3 года назад

    Thank you ❤️

  • @MdAbdullah-qz4jp
    @MdAbdullah-qz4jp 3 года назад +1

    How can I change something from a csv file. Like I want to make some condition. if a student gets 40 then he/she will pass.

  • @omidragon15
    @omidragon15 2 года назад

    Good stuff

  • @Adrastus_
    @Adrastus_ Год назад

    I've been trying to study and practice and learn java for about a year now but it has mainly been on and off and lately I find myself with no time to practice, so I basically feel like I forgot everything I have learned and am a beginner again. This is all to say, why would one ever create a java program to read a csv file, when what was printed here is the exact same thing as the google sheets? Is it a matter of formatting that you could do with java?

  • @Nomad5915
    @Nomad5915 3 года назад

    Thank you

  • @hamitalkin9294
    @hamitalkin9294 3 года назад +1

    can some one give me a tutorial how to safe them into an two deminsonal array?

  • @samsepiol7
    @samsepiol7 8 месяцев назад

    I have a question, I need to read 3 csv file. How can I make this ?

  • @mimikrama
    @mimikrama Год назад

    ty

  • @GreenT3A_4u
    @GreenT3A_4u Год назад

    What do I do if my csv file have empty cells? How do I skip them?

  • @beingpeterkevin
    @beingpeterkevin 2 года назад

    Thank You bro!

  • @nehalayaaz9406
    @nehalayaaz9406 4 года назад

    Thanks 🙏

  • @kex6799
    @kex6799 3 месяца назад

    alalalallalalala for the yt

  • @mihailbelev
    @mihailbelev 2 года назад

    very helpful !!!

  • @teenva
    @teenva 11 месяцев назад

  • @tong4925
    @tong4925 3 года назад

    It's so funny that Snoop Dogg passed and Karen failed lmao

  • @NachoGalvisRuiz
    @NachoGalvisRuiz 2 года назад

    Gracias

  • @manojseenivasan8854
    @manojseenivasan8854 3 года назад +1

    Bro do for Android development

  • @eglencedostu6433
    @eglencedostu6433 4 года назад

    Thanks

  • @orbmaster9815
    @orbmaster9815 2 года назад

    It worked thank you

  • @stebboy
    @stebboy Год назад

    nice

  • @barathn6239
    @barathn6239 2 года назад

    How to write a new data in csv file using java, bro?

  • @DanielRamos-to1pd
    @DanielRamos-to1pd 5 месяцев назад

    love you bro

  • @knucklechukka
    @knucklechukka 10 месяцев назад

    commenting per instruction

  • @anubhavsingh145
    @anubhavsingh145 2 года назад

    How we can get extract data rowise

  • @abirbek4315
    @abirbek4315 3 года назад

    thank youuuuuuuu

  • @Mohammed-tx1ok
    @Mohammed-tx1ok 4 года назад

    What is regular expression? I see it everywhere in java and it looks very difficult. Can you make a video for regular expression

    • @BroCodez
      @BroCodez  4 года назад +2

      It's a sequence of characters that define a search pattern. The one that I posted looks for commas that are not within a set of " " and splits the line. I'd like to make a video on it but I don't think I'm ready to explain it yet

    • @Mohammed-tx1ok
      @Mohammed-tx1ok 4 года назад

      Bro Code alright that is fine

  • @devibala6949
    @devibala6949 2 года назад

    Bro. How to read three different CSV files and convert it into json after mapping?

  • @everydayartes
    @everydayartes 2 года назад

    Don’t work for android

  • @jeljelespuerta5068
    @jeljelespuerta5068 3 года назад

    Bro code, question, is there a way for me to read a single row only? if there is can u help me with that? thanks! more power to your channel!

  • @curtking8803
    @curtking8803 3 года назад

    Every illustrated error catching exercise should be from a Karen like karen trying to divide by zero or some logical error

    • @BroCodez
      @BroCodez  3 года назад

      That's usually Steve's job

  • @sagarpapineni7843
    @sagarpapineni7843 3 года назад

    Hi need your assistance

  • @jgposner
    @jgposner 2 года назад

    👍

  • @sagarpapineni7843
    @sagarpapineni7843 3 года назад

    Hello

  • @noah77
    @noah77 4 года назад +1

    Hey bro, I commented a huuuuugggggeee comment on Qazi's latest video, please see it.

    • @BroCodez
      @BroCodez  4 года назад +1

      What's the link?

    • @noah77
      @noah77 4 года назад +1

      @@BroCodez ruclips.net/video/MLfegvV79yY/видео.html

  • @freelancepakistan424
    @freelancepakistan424 2 года назад

    k

  • @RaselAhmed-ix5ee
    @RaselAhmed-ix5ee 3 года назад

    bro i need an urgent help please reply me... i am stuck in a program please reply ASAP

    • @BroCodez
      @BroCodez  3 года назад

      what's the problem?

    • @RaselAhmed-ix5ee
      @RaselAhmed-ix5ee 3 года назад

      @@BroCodez i need to read some data from student record and find the mean ,average , of marks of each student and print it another file?

    • @BroCodez
      @BroCodez  3 года назад

      what's your current code look like?

    • @RaselAhmed-ix5ee
      @RaselAhmed-ix5ee 3 года назад

      @@BroCodez where can i send you the screenshot?

    • @BroCodez
      @BroCodez  3 года назад

      if you can, post the code in the comments

  • @augischadiegils.5109
    @augischadiegils.5109 3 года назад