P10TreasureHunt

package Arrays.Exercise;

import java.util.Scanner;

public class P10TreasureHunt {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String[] lootArr = scanner.nextLine().split("\\|");
        String command = scanner.nextLine();

        while (!command.equals("Yohoho!")) {
            String[] commandArr = command.split(" ");
            if (command.contains("Loot")) {
                for (int i = 1; i < commandArr.length; i++) {
                    boolean alreadyContained = false;
                    for (int j = 0; j < lootArr.length; j++) {
                        if (commandArr[i].equals(lootArr[j])) {
                            alreadyContained = true;
                            break;
                        }
                    }
                    if (!alreadyContained) {
                        String newItem = commandArr[i] + " " + String.join(" ", lootArr);
                        lootArr = newItem.split(" ");
                    }
                }

            } else if (command.contains("Drop")) {

                int index = Integer.parseInt(commandArr[1]);
                if (index <= lootArr.length - 1 && index >= 0) {
                    String droppedItem = lootArr[index];
                    for (int j = index; j < lootArr.length - 1; j++) {
                        lootArr[j] = lootArr[j + 1];
                    }
                    lootArr[lootArr.length - 1] = droppedItem;
                } else {
                    command = scanner.nextLine();
                    continue;
                }

            } else if (command.contains("Steal")) {
                int index = Integer.parseInt(commandArr[1]);
                if (index > lootArr.length) {
                    index = lootArr.length;
                }
                String[] stealArr = new String[0];
                for (int i = lootArr.length - 1; i >= lootArr.length - index; i--) {
                    String stolenItem = lootArr[i] + " " + String.join(" ", stealArr);
                    stealArr = stolenItem.split(" ");
                }
                for (int j = 0; j < stealArr.length; j++) {
                    String currentItem = stealArr[j];
                    if (j != stealArr.length - 1) {
                        System.out.print(currentItem + ", ");
                    } else {
                        System.out.print(currentItem);
                    }
                }
                String [] newChest = new String[lootArr.length - stealArr.length];
                for (int i = 0; i < newChest.length; i++) {
                    String leftItem = lootArr[i];
                    newChest[i] = leftItem;

                }
                lootArr = newChest;
            }
            command = scanner.nextLine();
        }
        int totalLength = 0;
        int itemsCount = lootArr.length;

        if (itemsCount == 0) {
            System.out.printf("%nFailed treasure hunt.");
        } else {
            for (int i = 0; i < lootArr.length; i++) {
                String currentItem = lootArr[i];
                int itemLength = currentItem.length();
                totalLength+=itemLength;
            }

            double averageHunt = (totalLength * 1.0) / itemsCount;
            System.out.printf("%nAverage treasure gain: %.2f pirate credits.", averageHunt);
        }
    }
}