ConsoleHelper.java

package com.codegym.task.task30.task3008;

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

public class ConsoleHelper {

    private static BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));


    public static void writeMessage(String message) {

        System.out.println(message);

    }


    public static String readString() {

        while (true) {

            try {

                String data = reader.readLine();

                if (data != null) {
                    return data;
                }

            } catch (IOException e) {

                writeMessage("An error occurred while trying to enter text. Try again.");

            }
        }

    }

    public static int readInt() {


        while (true) {
            try {

                return Integer.parseInt(readString().trim());

            } catch (NumberFormatException e) {

                writeMessage("An error while trying to enter a number. Try again.");

            }

        }
    }

}