Java input and output redirect Code __java

try {
Bufferedinputstream in = new Bufferedinputstream (New FileInputStream ("Input.txt"));
System.setin (in);
BufferedReader br = new BufferedReader (new InputStreamReader (system.in));


PrintStream out = System.out; Save the original output stream
PrintStream ps=new PrintStream ("./output.txt"); Create a file output stream
System.setout (PS); Set to use the new output stream

String s;
while ((s = br.readline ())!=null)
System.out.println (s);


catch (FileNotFoundException e) {
E.printstacktrace ();
catch (IOException e) {
TODO automatically generated catch blocks
E.printstacktrace ();
}
Try{printstream out =
New PrintStream (
New Bufferedoutputstream (
New FileOutputStream ("Test.out"));}
catch (IOException e) {
E.printstacktrace ();
}