资源下载阅读到单独的阵列中的每个线 [英] Java Read Each Line Into Separate Array

问题描述

我有一个文本文件1000行数据，我想每一行都将自己的浮动[]。

I have 1,000 lines of data in a text file and I would like each line to be its own float [].

1,1,1,1,1,1
2,2,2,2,2,2
3,3,3,3,3,3

将导致：

 float[0] = {1,1,1,1,1,1}
 float[1] = {2,2,2,2,2,2}
 float[2] = {3,3,3,3,3,3}

这可能吗？我只能找到加载整个文件到一个数组的例子。我想所有的硬编码的数组，但超过〜65,000字节字符的限制

Is this possible? I could only find examples of loading an entire file into an array. I tried hardcoding all the arrays, but exceeded the byte character limit of ~65,000

推荐答案

请尝试以下操作：

// this list will store all the created arrays
List<float[]> arrays = new ArrayList<float[]>();

// use a BufferedReader to get the handy readLine() function
BufferedReader reader = new BufferedReader(new FileReader("myfile.txt"));

// this reads in all the lines. If you only want the first thousand, just
// replace these loop conditions with a regular counter variable
for (String line = reader.readLine(); line != null; line = reader.readLine()) {
    String[] floatStrings = line.split(",");
    float[] floats = new float[floatStrings.length];
    for (int i = 0; i < floats.length; ++i) {
        floats[i] = Float.parseFloat(floatStrings[i]);
    }
    arrays.add(floats);
}

请注意，我没有添加任何异常处理（的readLine（），例如，抛出IOException异常）。

Note that I haven't added any exception handling (readLine(), for example, throws IOException).

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