feat: bring back Randomizer

src/main/java/com/lapisberry/utils/Randomizer.java

@@ -0,0 +1,21 @@
+package com.lapisberry.utils;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+/**
+ * The {@code Randomizer} class
+ * <p>
+ * This class provides static methods for randomizing things.
+ * <p>
+ * Like shuffling an {@code ArrayList} or getting a random integer.
+ */
+public final class Randomizer {
+    public static int getRandomInt(int bound) {
+        return (int) (Math.random() * bound);
+    }
+
+    public static void shuffleArrayList(ArrayList<?> list) {
+        Collections.shuffle(list);
+    }
+}