将文本文件内容逐行存储到数组中 [英] Store text file content line by line into array

问题描述

all，我现在面临着不知道将文本文件中的内容存储到数组中的问题.情况是这样的，文本文件内容:

all,I'm now facing the problem of no idea on storing the content in text file into the array. The situation is like, text file content:

abc1
xyz2
rxy3

我希望将它们逐行存储到数组中，这可能吗?我的期望是这样的:

I wish to store them into array line by line, is that possible? What I expect is like this:

arr[0] = abc1
arr[1] = xyz2
arr[2] = rxy3

我尝试过类似的方法，但似乎对我不起作用.如果有人可以帮助我，真的非常感谢.

I've try something like this, but seem like not work for me. If anyone can help me, really thanks a lot.

代码是:

BufferedReader in = new BufferedReader(new FileReader("path/of/text"));
        String str;

        while((str = in.readLine()) != null){
            String[] arr = str.split(" ");
            for(int i=0 ; i<str.length() ; i++){
                arr[i] = in.readLine();
            }
        }

推荐答案

我建议使用 ArrayList，它处理动态大小调整，而数组需要预先定义大小，您可以不知道.您始终可以将列表重新转换为数组.

I would recommend using an ArrayList, which handles dynamic sizing, whereas an array will require a defined size up front, which you may not know. You can always turn the list back into an array.

BufferedReader in = new BufferedReader(new FileReader("path/of/text"));
String str;

List<String> list = new ArrayList<String>();
while((str = in.readLine()) != null){
    list.add(str);
}

String[] stringArr = list.toArray(new String[0]);

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