The standard input stream is represented by the InputStream object System.in. For reading a whole line at a time BufferedReader is chained to an InputStreamReader that in turn is chained to System.in. For example: This program read line from a file “students” and displays it on screen.

import java.io.*;

import java.util.*;

public class stud

{

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

{

BufferedReader br= new BufferedReader(new InputStreamReader(newFileInputStream(“students”)));

String s= “”;

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

}

catch (IOException e)

{

System.out.println(e);

}

}