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Android

Posted by akou
akou
831 Points

Read lines of a text file into an array

Hi everyone,

In android studio where should I put my text file that contains at each line a different text. Then how can I read this text file and put each line into an array? I would like to use that to display a new quote randomly every time someone launch the app.

I found this code, but it doesn't seems to work :

// set up variables
String fileName = "MyFriends.txt";
String line;
ArrayList aList = new ArrayList();

//Read the lines of text into an ArrayList

try {
    BufferedReader input = new BufferedReader(new FileReader(fileName));
    if (!input.ready()) {
        throw new IOException()
    }
    while ((line = input.readLine()) != null) {
        aList.add(line);
    }
    input.close();

                } catch (IOException e) {
    System.out.println(e);
        } '''

Thanks

1 Answer

Tyler Russell
Tyler Russell
3,007 Points
Tyler Russell
Tyler Russell
3,007 Points

One thing you might want to change is the data type of the ArrayList. You would want to have it a String: ArrayList<String> list = new ArrayList<String>();

akou
akou
831 Points

Thanks but I don't really get what you mean, like that : String aList = new ArrayList(); ? Also I don't know in which folder of the project I shoud put by text file.

Tyler Russell
Tyler Russell
3,007 Points

Make this line of yours: ArrayList aList = new ArrayList();

to this one: ArrayList<String> aList = new ArrayList<String>();

ArrayLists need a data type (non-primitive). This might not solve your problem, but it is a start.