Input test

input.java

package dev.jbang.util;

import java.io.*;

public class input {
	public static void main(String... args) throws IOException {
        Reader r;
        if (args.length == 0 || args[0].equals("-")) {
            r = new InputStreamReader(System.in);
        } else {
            r = new FileReader(new File(args[0]));
        }
		BufferedReader br = new BufferedReader(r);
		System.out.println("main() called.");
		String input;
		do {
			System.out.println("Please type something: ");
			try {
				// wait until we have data to complete a readLine()
				while (!br.ready()) {
					Thread.sleep(200);
				}
				input = br.readLine();
			} catch (InterruptedException e) {
				System.out.println("main() cancelled");
				return;
			}
		} while ("".equals(input));
		System.out.println("Thank You for providing input: " + input);
	}
}