4

java | 缓冲流

 1 year ago
source link: https://benpaodewoniu.github.io/2022/12/25/java144/
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java | 缓冲流

2022-12-25java ， 基础 ， IO

1

  • BufferedInputStream
  • BufferedOutputStream
  • BufferedReader
  • BufferedWriter
package com.redisc;

import lombok.extern.slf4j.Slf4j;

import java.io.*;

@Slf4j(topic = "c.Test")
public class Run {
    public static void main(String[] args) throws IOException {
        InputStream is = new FileInputStream("");
        // 低级字节包入高级字节
        BufferedInputStream bis = new BufferedInputStream(is);
        int len = bis.read();

}

}

其原理是，java 会在内存中单独开辟一块缓冲区，然后预先将数据存到缓冲区，用到的时候，从缓冲区读。


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