//
// example of use of methods from Input class.
//
// observe notation "Input.methodname" to reference static methods.
//

public class TestFileInput {

        // reads two integers from file named by command-line argument,
        // then reads two more from standard input.

        public static void main(String[] args) {

                if (args.length == 0) {
                        System.out.println("Missing argument.") ;
                        System.exit(-1) ;
                }

                // set up to read from file rather than standard input
                Input.setFile(args[0]) ;

                int i = Input.readInt() ;
                int j = Input.readInt() ;
                System.out.println("Read from file:  " + i + " " + j) ;

                // reset to read from standard input
                Input.setStdin() ;

                System.out.println("Enter two integers");
                i = Input.readInt() ;
                j = Input.readInt() ;

                System.out.println("Read from stdin:  " + i + " " + j) ;
        }
}