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Thread: extracting file content into array

  1. #1
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    Default extracting file content into array

    Hello, I am fairly new to Java and I'm working on some code that is supposed to open a file and copy each line into an array. But the problem is that it returns an IOException and doesn't complete the task. The code is below:

    import java.util.*;
    import java.io.*;
     
    public class test 
    {
        static String[] subjects = {};
     
        public static void main(String[] args)
        {
            loadArrays();
        }
     
        public static void loadArrays()
        {
            String subFile = "data/subjects.txt";
            try
            {
                subjects = readLines(subFile);
            }
            catch(IOException e)
            {
                System.out.println("cant");
            }
        }
     
        public static String[] readLines(String filename) throws IOException
        {
            FileReader fileReader = new FileReader(filename);
     
            BufferedReader bufferedReader = new BufferedReader(fileReader);
            List<String> lines = new ArrayList<String>();
            String line = null;
     
            while((line = bufferedReader.readLine()) != null)
            {
                lines.add(line);
            }
            bufferedReader.close();
            return lines.toArray(new String[lines.size()]);
        }
     
    }
    Any help will be appreciated.


  2. #2
    Super Moderator jps's Avatar
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    Default Re: extracting file content into array

    But the problem is that it returns an IOException and
    Please post error messages with your code and question.

  3. #3
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    Default Re: extracting file content into array

    java.io.FileNotFoundException: data/subjects.txt (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.jav a:120)
    at java.io.FileInputStream.<init>(FileInputStream.jav a:79)
    at java.io.FileReader.<init>(FileReader.java:41)
    at test.readLines(test.java:28)
    at test.loadArrays(test.java:18)
    at test.main(test.java:10)

  4. #4
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    Default Re: extracting file content into array

    Found the solution. Had the data folder in the wrong place. Thanks for your help!

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