Java-Programming-Exercises/ReadAFile.java at master · RoyTien/Java-Programming-Exercises · GitHub

23 lines (20 loc) · 610 Bytes

import java.io.*;

class ReadAFile{

public static void main(String[] args){

try{

File myFile = new File("MyText.txt");

//FileReader是字符连接到文本文件的串流

FileReader fileReader = new FileReader(myFile);

//将FileReader链接到BufferedReader以获取更高的效率,.

//它只会在缓冲区读空的时候才会回头去磁盘读取

BufferedReader reader = new BufferedReader(fileReader);

String line = null;

while((line = reader.readLine()) != null){

System.out.println(line);

}

reader.close();

}catch(Exception ex){

ex.printStackTrace();

}

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