Go语言视频零基础入门到精通

javalearner

import java.io.*;


public class Redirect
{
     public static void main (String args[])
     {
InputStream origIn = System.in;
PrintStream origOut = System.out;
PrintStream origErr = System.err;

InputStream stdin = null;
try
     {
     stdin = new FileInputStream ("Redirect.in");
     }
catch (Exception e)
     {
     System.exit (1);
     }  
  
   
   
   

   
  
// Create a new output stream for the standard output.
PrintStream stdout = null;
try  
     {
     stdout = new PrintStream (
new FileOutputStream ("Redirect.out"));
     }
catch (Exception e)
     {
     // Sigh.  Couldn"t open the file.
     System.exit (1);
     }

// Create new output stream for the standard error output.
PrintStream stderr = null;
try
     {
     stderr = new PrintStream (
new FileOutputStream ("Redirect.err"));
     }
catch (Exception e)
     {
     // Sigh.  Couldn"t open the file.
     System.exit (1);
     }

         origOut.println ("
11111111");
         System.out.println ("22222222222222");
         origOut.println ("333333");
         System.err.println ("4444444444444444444");
         origErr.println ("55555555555555");

// Set the System out and err streams to use our replacements.
System.setIn ( stdin );//重定向标准输入流
System.setOut ( stdout );//重定向标准输出流
System.setErr ( stderr );//重定向错误流

         origOut.println ("666666666666666666");
         System.out.println ("aaaaaaaaaaaaaa");
         origOut.println ("777777777777");
         System.err.println ("bbbbbbbbbbbbb");
         origErr.println ("99999999999999999999999");

// Read some input and dump it to the console.
         origOut.println ("
11111111111111111111111");
int inChar = 0;
while (-1 != inChar)
     {
     try
{
inChar = System.in.read();
}
     catch (Exception e)
{
// Clean up the output and bail.
origOut.print ("
");
break;
}
     origOut.write (inChar);
     }

// Close the streams.
try
     {
     stdin.close ();
     stdout.close ();
     stderr.close ();
     }
catch (Exception e)
     {
     origOut.println ("Redirect:  Unable to close files!");
     System.exit (1);
     }

System.exit (0);
     }
}
  

  
  
   
   

     
   

     
   
  



源码下载：http://file.javaxxz.com/2014/10/31/235804187.zip