IO 最快的read 和 write

import java.io.BufferedReader;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.IOException;

import java.io.PrintWriter;

public class IOTest {

    public static void main(String[] args) {

        PrintWriter pw;

        try {

            pw = new PrintWriter("C:\\temp\\printwrite.txt");

            pw.println("hello test");

            pw.println("this is holiday");

            pw.close();

        } catch (FileNotFoundException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        FileReader fileReader;

        BufferedReader bufferedReader;

        try {

            fileReader = new FileReader("C:\\temp\\test.txt");

            bufferedReader = new BufferedReader(fileReader);

            System.out.println(bufferedReader.readLine());

            System.out.println(bufferedReader.readLine());

            bufferedReader.close();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

}