2、由用户输入被复制图片的路径以及文件名、复制后的位置选用合适的流实现文件复制；请用java代码实现

import java.io.*;

public class FileCopy {
    public static void main(String[] args) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        try {
            System.out.println("请输入被复制图片的路径和文件名：");
            String sourcePath = reader.readLine();
            System.out.println("请输入复制后的位置：");
            String targetPath = reader.readLine();

            FileInputStream fis = new FileInputStream(sourcePath);
            FileOutputStream fos = new FileOutputStream(targetPath);

            byte[] buffer = new byte[1024];
            int len;
            while ((len = fis.read(buffer)) > 0) {
                fos.write(buffer, 0, len);
            }

            fis.close();
            fos.close();
            System.out.println("文件复制成功！");
        } catch (IOException e) {
            System.out.println("文件复制失败：" + e.getMessage());
        }
    }
}

注：以上代码仅供参考，实际应用中需要进行异常处理和错误提示