java 缓冲流的概念使用方法以及实例详解

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class Main {
    public static void main(String[] args) {
        try {
            FileInputStream fis = new FileInputStream("input.txt");
            BufferedInputStream bis = new BufferedInputStream(fis);
            FileOutputStream fos = new FileOutputStream("output.txt");
            BufferedOutputStream bos = new BufferedOutputStream(fos);
            int data;
            while ((data = bis.read()) != -1) {
                bos.write(data);
            }
            bis.close();
            bos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class Main {
    public static void main(String[] args) {
        try {
            FileReader fr = new FileReader("input.txt");
            BufferedReader br = new BufferedReader(fr);
            FileWriter fw = new FileWriter("output.txt");
            BufferedWriter bw = new BufferedWriter(fw);
            int data;
            while ((data = br.read()) != -1) {
                bw.write(data);
            }
            br.close();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}