IO之Reader Writer

package joeho.net.csdn.blog.io;

import java.io.*;
import java.nio.*;
public class FileWriterReader {
 
 /**
  * Method main
  *
  *
  * @param args
  *
  */
 public static void main(String[] args) throws Exception {
  
  FileWriter fw = new FileWriter("Hello2.txt");
  fw.write("http://hi.youkuaiyun.com/joeho");
  fw.flush();
  
  CharBuffer cbuff = CharBuffer.allocate(1024);
  FileReader fr = new FileReader("Hello2.txt");
  fr.read(cbuff); 
  System.out.println(new String(cbuff.array()));
  fr.close();
  
 } 
}