ConsoleHelper.java

import java.io.Console;

public class ConsoleHelper {
    static Console console = System.console();
    public static int askQuestion(String question, String... answers) {
        System.out.println(question);
        for (int i = 0; i < answers.length; i++) {
            System.out.println("\t "+(i+1)+". "+answers[i]);
        }
        while(true) {
            System.out.print("Answer: ");
            String ans = console.readLine();
            int ansInt = -1;
            if(ans.length() > 0 && ans.matches("^[0-9]+$")) {
                ansInt = Integer.parseInt(ans);
                if(ansInt > 0 && ansInt <= answers.length)
                    return ansInt-1;
            }
        }
    }
    public static String askOpenQuestion(String question, String regexp) {
        System.out.println(question);
        while(true) {
            System.out.print("Answer: ");
            String ans = console.readLine();
            if(ans.length() > 0 && ans.matches(regexp)) {
               return ans;
            }
        }
    }
}