IO操作変更標準入出力フローと変換フロー練習

/* 
*            
*                
* Copyright (c) 2011,               
* All rights reserved.   
*     ：                                        
*       ：                                  
*     ：2012    11    06      
*     ：x1.0            
   
*                 
*     ：  
*     : 
*     ：   
*           
*/
import java.io.*;
class TransStreamTest2
{
	public static void main(String[] args) throws IOException
	{
		System.setIn(new FileInputStream("TransStreamTest.java"));
		System.setOut(new PrintStream("zzz.txt"));
		BufferedReader bufr = new BufferedReader(new InputStreamReader(System.in));

		BufferedWriter bufw = new BufferedWriter(new OutputStreamWriter(System.out));

		String line = null;

		while((line = bufr.readLine()) != null)
		{
			if("over".equals(line))
				break;
			bufw.write(line.toUpperCase());
			bufw.newLine();
			bufw.flush();
		}

		bufr.close();
	}
}