用IO 字符流进行从键盘接收两个文件夹路径,把其中一个文件夹中(包含内容)拷贝到另一个文件夹中

package cn.day23;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;public class test {public static void main(String[] args) {File f = new File("D:\\1");String s = "D:\\2";fofile(f, s);}/* * 遍历源路劲文件夹中所有文件 * 1.转化为File【】数组 * 2.遍历  * 3.调用copy方法 */public static void fofile(File f,String s){File[] file = f.listFiles();for(File fi : file){if(fi.isDirectory()){new File(s+ "\\" + fi.getName()).mkdirs();String news = s+ "\\" + fi.getName();fofile(fi,news);  }else{String fs = fi.getName();copy(fi, s+ "\\" +fs);}}}/** * @param args * 1.从键盘接收两个文件夹路径,把其中一个文件夹中(包含内容)拷贝到另一个文件夹中 * copy方法 */public static void copy(File fi1,String fo1) {FileInputStream fi = null;FileOutputStream fo = null;try{fi = new FileInputStream(fi1);fo = new FileOutputStream(fo1);int len = 0;byte[] by = new byte[1024];while((len = fi.read(by)) != -1){fo.write(by, 0, len);}}catch(IOException ex){ex.printStackTrace();throw new RuntimeException();}finally{try{if(fo != null)fo.close();}catch(IOException exception){throw new RuntimeException();}finally{try {if(fi != null)fi.close();} catch (Exception e) {// TODO: handle exception}}}}}