Java: How to get input from System.console()

Question

I am trying to use Console class to get input from user but a null object is returned when I call System.console(). Do I have to change anything before using Sy

Answer 1

The following takes athspk's answer and makes it into one that loops continually until the user types "exit". I've also written a followup answer where I've taken this code and made it testable.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class LoopingConsoleInputExample {

   public static final String EXIT_COMMAND = "exit";

   public static void main(final String[] args) throws IOException {
      BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      System.out.println("Enter some text, or '" + EXIT_COMMAND + "' to quit");

      while (true) {

         System.out.print("> ");
         String input = br.readLine();
         System.out.println(input);

         if (input.length() == EXIT_COMMAND.length() && input.toLowerCase().equals(EXIT_COMMAND)) {
            System.out.println("Exiting.");
            return;
         }

         System.out.println("...response goes here...");
      }
   }
}

Example output:

Enter some text, or 'exit' to quit
> one
one
...response goes here...
> two
two
...response goes here...
> three
three
...response goes here...
> exit
exit
Exiting.