fix mistakes with random

Author: Prototype206

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

@@ -1,6 +1,7 @@
 package hexlet.code;
 
 import java.util.Scanner;
+import java.util.Random;
 
 import hexlet.code.games.Calc;
 import hexlet.code.games.Even;
@@ -9,6 +10,7 @@
 import hexlet.code.games.Progression;
 
 public final class Engine {
+	public static final Random random = new Random();
 	private static int scoreCounter = 0;
 	private static int scoreToWin = 3;
 	private static StringBuilder correctAnswer = new StringBuilder();

app/src/main/java/hexlet/code/games/Calc.java

@@ -1,6 +1,6 @@
 package hexlet.code.games;
 
-import java.util.Random;
+import static hexlet.code.Engine.random;
 
 public final class Calc {
 
@@ -14,7 +14,6 @@ public static void startGameCalc() {
 	}
 
 		public static String generateCorrectAnswer() {
-			Random random = new Random();
 			int correctAnswer;
 			int numberOne = random.nextInt(100);
 			int numberTwo = random.nextInt(100);

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

@@ -1,6 +1,6 @@
 package hexlet.code.games;
 
-import java.util.Random;
+import static hexlet.code.Engine.random;
 
 public final class Even {
 
@@ -14,7 +14,6 @@ public static void startGameEven() {
 
 
 	public static String generateCorrectAnswer() {
-		Random random = new Random();
 		StringBuilder correctAnswer = new StringBuilder();
 		final int evenDivisor = 2;
 		final int oddRemainder = 1;

app/src/main/java/hexlet/code/games/GCD.java

@@ -1,6 +1,6 @@
 package hexlet.code.games;
 
-import java.util.Random;
+import static hexlet.code.Engine.random;
 
 public final class GCD {
 
@@ -13,7 +13,6 @@ public static void startGameGCD() {
 	}
 
 	public static String generateCorrectAnswer() {
-		Random random = new Random();
 		int numberA = random.nextInt(100);
 		int numberB = random.nextInt(100);
 		int numberC;

app/src/main/java/hexlet/code/games/Prime.java

@@ -1,6 +1,6 @@
 package hexlet.code.games;
 
-import java.util.Random;
+import static hexlet.code.Engine.random;;
 
 public final class Prime {
 	private Prime() {
@@ -12,7 +12,6 @@ public static void startGamePrime() {
 	}
 
 	public static String generateCorrectAnswer() {
-		Random random = new Random();
 		int number = random.nextInt(100);
 		int maxValue = (int) (Math.ceil(Math.sqrt(number)));
 		final int MIN_VALUE = 3;

app/src/main/java/hexlet/code/games/Progression.java

@@ -1,6 +1,6 @@
 package hexlet.code.games;
 
-import java.util.Random;
+import static hexlet.code.Engine.random;
 
 
 public final class Progression {
@@ -18,7 +18,6 @@ public static void startGameProgression() {
 	}
 
 	public static String generateCorrectAnswer() {
-		Random random = new Random();
 		int maxValue = 20;
 		int minValue = 7;
 		int numberOne = random.nextInt(100);