package keshanglianxi29_2;

import java.io.BufferedReader;
import java.io.BufferedWriter;
//import java.io.FileInputStream;
//import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.OutputStreamWriter;

public class GaoXiaoCopy {

        public static void main(String[] args) throws IOException {
//                BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("E:\\Demo\\b.txt")));
                BufferedReader br = new BufferedReader(new FileReader("E:\\Demo\\b.txt"));
//                BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("E:\\Demo\\c.txt")));
                BufferedWriter bw = new BufferedWriter(new FileWriter("E:\\Demo\\c.txt"));
                char[] chs = new char[1024];
                int len = 0;
                while((len=br.read(chs)) != -1){
                        bw.write(chs, 0, len);
                        bw.flush();
                }
                System.out.println("复制完毕");
                bw.close();
                br.close();
        }
}

package keshanglianxi29_2;

import java.io.BufferedReader;
import java.io.BufferedWriter;
//import java.io.FileInputStream;
//import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.OutputStreamWriter;

public class GaoXiaoCopy {

        public static void main(String[] args) throws IOException {
//                BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("E:\\Demo\\b.txt")));
                BufferedReader br = new BufferedReader(new FileReader("E:\\Demo\\b.txt"));
//                BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("E:\\Demo\\c.txt")));
                BufferedWriter bw = new BufferedWriter(new FileWriter("E:\\Demo\\c.txt"));
                char[] chs = new char[1024];
                int len = 0;
                while((len=br.read(chs)) != -1){
                        bw.write(chs, 0, len);
                        bw.flush();
                }
                System.out.println("复制完毕");
                bw.close();
                br.close();
        }
}