How to read file line by line?

最新推荐文章于 2022-12-09 10:48:50 发布

原创最新推荐文章于 2022-12-09 10:48:50 发布 · 781 阅读

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文章标签：

#file #string #null

本文介绍了一种使用BufferedReader替代DataInputStream中的sincereadLine()方法来读取文件内容的方法。通过示例代码展示了如何打开指定路径的文件，并逐行读取文件内容直至结束。同时处理了可能发生的FileNotFoundException和IOException。

since readLine() of DataInputStream is depreacted, now we can use BufferReader to do this job.

public static void main(String args[]){
        try {
            File file = new File("d://myfile.txt");
            FileInputStream fis = new FileInputStream(file );
            BufferedReader br = new BufferedReader(new InputStreamReader(fis));

            String line = null;
            while (( line = br.readLine()) != null){
                System.out.println(line);
            }
              fis.close();
              br.close();

            } catch (FileNotFoundException e) {
              e.printStackTrace();
            } catch (IOException e) {
              e.printStackTrace();
            }
    }