JAVA高级面试进阶训练营视频教程

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import java.io.*;

public class TextFile {

    public static void main(String[] args) throws Exception {
        File file = new File("E:\\JavaLog/logs/1.txt");
        File file2 = new File("E:\\JavaLog/logs/1-copy.txt");

        //指定读写格式为gbk
        BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file), "gbk"));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file2), "gbk"));
        try {
            String temp;
            while ((temp = br.readLine()) != null) {
                //每次写入一行.
                bw.write(temp);
                //并且进行换行
                bw.newLine();
                bw.flush();
                //读取文本
                System.out.println("文件内容:" + temp);
                temp = br.readLine();
                break;
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            br.close();
            bw.close();
        }

    }
}