Java文件复制：字符缓冲流和字节缓冲流的实现

import java.io.*;

public class TextCopy {
    public static void main(String[] args) {
        try (
            BufferedReader br = new BufferedReader(new FileReader("source.txt"));
            BufferedWriter bw = new BufferedWriter(new FileWriter("target.txt"));
        ) {
            String line;
            while ((line = br.readLine()) != null) {
                bw.write(line);
                bw.newLine();   // 换行
            }
            System.out.println("文本复制成功！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.io.*;
public class AnyCopy {
    public static void main(String[] args) {
        try (
            BufferedInputStream bis = new BufferedInputStream(new FileInputStream("photo.jpg"));
            BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("photo_copy.jpg"));
        ) {
            byte[] buffer = new byte[8192];   // 8KB的小桶
            int len;
            while ((len = bis.read(buffer)) != -1) {
                bos.write(buffer, 0, len);
            }
            System.out.println("任意文件复制成功！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}