读取输入文件Java

Question

I am fairly new to programming, so bear with me.

I am trying to read an input file, "1.in" and assign the first line to a variable, the second to another variable, and so on. The file is fairly short, 100 lines. How do I go about doing this? I tried researching it on the internet, but i didn't really understand the results. The only type of input i know right now is by using the scanner class, but that requires manual input.

Answer 1

Use some data structure to hold your data.
If you know size of your file, array is the best option. Or you can use LinkedList, ArrayList
For Example

LinkedList<String> list = new LinkedList<>();
File file = new File("data.txt");

    try {

        Scanner scanner = new Scanner(file);

        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            list.add(line);
        }
        scanner.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }