Add asciinema to README, edit App and Cli, add Even

Author: Antojkv

app/src/main/java/hexlet/code/App.java

@@ -1,9 +1,30 @@
 package hexlet.code;
 
+import java.util.Scanner;
 
 public class App {
     public static void main(String[] args) {
-        System.out.println("Welcome to the Brain Games!");
-        Cli.greetUser();
+        System.out.println("Please enter the game number and press Enter.");
+
+        Scanner scanner = new Scanner(System.in);
+        System.out.println("1 - Greet");
+        System.out.println("2 - Even");
+        System.out.println("0 - Exit");
+        String digit = scanner.next();
+        System.out.println("Your choice: " + digit);
+
+        if (digit.equals("1")) {
+            System.out.println("Welcome to the Brain Games!");
+            Cli.greetUser();
+        } else if (digit.equals("0")) {
+            System.out.println("Goodbye!");
+        } else if (digit.equals("2")) {
+            System.out.println("Welcome to the Brain Games!");
+            String userName = Cli.greetUser();
+            Even.generateNumber(userName);
+        } else {
+            System.out.println("Invalid choice");
+        }
+        scanner.close();
     }
 }

app/src/main/java/hexlet/code/Cli.java

@@ -2,12 +2,12 @@
 import java.util.Scanner;
 
 public class Cli {
-    public static void greetUser() {
+    public static String greetUser() {
         Scanner scanner = new Scanner(System.in);
         System.out.print("May i have your name? ");
         String userName = scanner.next();
         System.out.println("Hello, " + userName + "!");
+        return userName;
 
-        scanner.close();
     }
 }

app/src/main/java/hexlet/code/Even.java

@@ -0,0 +1,33 @@
+package hexlet.code;
+import java.util.Scanner;
+
+public class Even {
+    public static boolean generateNumber(String userName) {
+        Scanner scanner = new Scanner(System.in);
+        System.out.println("Answer 'yes' if the number is even, otherwise answer 'no'");
+        int correctAnswerCount = 0;
+        final int rounds = 3;
+        while (correctAnswerCount <= rounds) {
+            int random = (int) (Math.random() * 100);
+            System.out.println("Question: " + random);
+            String answer = scanner.next();
+            System.out.println("Your answer: " + answer);
+            boolean isCorrect = random % 2 == 0 ? answer.equals("yes") : answer.equals("no");
+            if (isCorrect) {
+                correctAnswerCount++;
+                System.out.println("Correct!");
+                if (correctAnswerCount == rounds) {
+                    System.out.println("Congratulations, " + userName + "!");
+                    return true;
+                }
+            } else {
+                String correctAnswer = random % 2 == 0 ? "'yes'" : "'no'";
+                System.out.println("'" + answer + "' is wrong answer ;(. Correct answer was " + correctAnswer
+                        + ".\nLet's try again, " + userName + "!");
+                return false;
+            }
+        }
+        return true;
+    }
+}
+