PrintStream

/*

  * 列印流

  * 位元組列印流

  * PrintStream

  * 構造函數可以接收的參數類型

  * 1.file對象。File

  * 2.字元串路徑。String

  * 3.位元組輸出流，Writer

  * 

  * 字元列印流

  * PrintWriter

  * 

  */

 public class EncodeStream {

       public static void main(String[] args) throws IOException {

BufferedReader bufr=new BufferedReader(new InputStreamReader(System.in));

//PrintWriter out=new PrintWriter(System.out);//寫到控制台

//PrintWriter out=new PrintWriter("G:\\demo.txt");//寫到文本裡

PrintWriter out=new PrintWriter(new FileWriter("G:\\sds.txt"),true);//自動重新整理

String line=null;

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

if("over".equals(line)){

break;

}

out.println(line.toUpperCase());

//out.flush();

}


out.close();

bufr.close();

}     

 }