Assignment01Driver.java

import java.util.ArrayList;
import java.util.InputMismatchException;
import java.util.Scanner;


    public class Assignment01Driver {
        Scanner input = new Scanner(System.in);

        public static void main(String[] args) {
            new Assignment01Driver();
        }

        // This will act as our program switchboard
        public Assignment01Driver() {
            String[] cargohold = new String[10];
            System.out.println("Welcome to the BlackStar Cargo Hold interface.");
            System.out.println("Please select a number from the options below");
            System.out.println("");

            while (true) {
                // Give the user a list of their options
                System.out.println("1: Add an item to the cargo hold.");
                System.out.println("2: Remove an item from the cargo hold.");
                System.out.println("3: Sort the contents of the cargo hold.");
                System.out.println("4: Search for an item.");
                System.out.println("5: Display the items in the cargo hold.");
                System.out.println("0: Exit the BlackStar Cargo Hold interface.");
                try{
                // Get the user input
                int userChoice = input.nextInt();
                input.nextLine();

                switch (userChoice) {
                    case 1:
                        addItem(cargohold);
                        break;
                    case 2:
                        removeItem(cargohold);
                        break;
                    case 3:
                        sortItems(cargohold);
                        break;
                    case 4:
                        searchItems(cargohold);
                        break;
                    case 5:
                        displayItems(cargohold);
                        break;
                    case 0:
                        System.out.println("Thank you for using the BlackStar Cargo Hold interface. See you again soon!");
                        System.exit(0);
                    default:
                        System.err.println("Please select a valid option");
                        continue;
                }
                }catch (InputMismatchException e){
                    System.out.println("Please select an option 1-5 or 0 to exit the program");
                    input.nextLine();
                    }

            }
            }


        // TODO: Add an item that is specified by the user
        private void addItem(String cargohold[]) {
            System.out.print("Enter the name of the item: ");
            String item = input.nextLine();
            int index = -1;
            for(int i=0; i<cargohold.length;i++){
                if (cargohold[i]==(null)){
                    index = i;
                    break;
                }
            }
            if(index!=cargohold.length&&index != -1){
                cargohold[index]=item;
                System.out.println("You have added " + cargohold[index] + "\n");
                System.out.println("Press Enter to continue");
                input.nextLine();
            }else{
                System.out.println("No more items can be stored");
                System.out.println("Press Enter to continue");
                input.nextLine();
            }




        }

        // TODO: Remove an item that is specified by the user
        // removeItem() to remove an item from the array
        private void removeItem(String cargohold[]) {
            String item;
            int index = 0;
            // prompt the user for the item name to remove
            System.out.println("Enter item you would like to remove: ");
            item = input.nextLine();
            // search for the item
            for (int i = 0; i < cargohold.length; i++) {
                if (!cargohold[i].equals(null)) {
                    if (cargohold[i].equalsIgnoreCase(item)) {
                        index = i;
                        break;
                    }
                }
            }
            // if index is 0 display an error message
            if (index == -1) {
                System.out.println("Sorry, your item is not found in the list.\n");
                System.out.println("Press Enter to continue");
                input.nextLine();
            }else {

                // if item is found
                for (int i = index; i < cargohold.length - 1; i++) {
                    cargohold[i] = cargohold[i];
                    System.out.println("You have removed " + item + " from the hold\n");
                    break;
                }
                System.out.println("Press Enter to continue");
                input.nextLine();
            }
            // TODO: Sort the items in the cargo hold (No need to display them here) - Use Selection or Insertion sorts
            // NOTE: Special care is needed when dealing with strings! research the compareTo() method with strings
        }
            private void sortItems(String cargohold[]) {
            String sorting;
            for (int i = 0; i < cargohold.length; i++) {
                for (int j = i + 1; j < cargohold.length; j++) {
                    if (cargohold[i] != null && cargohold[j] != null && cargohold[i].compareTo(cargohold[j]) > 0) {
                        sorting = cargohold[i];
                        cargohold[i] = cargohold[j];
                        cargohold[j] = sorting;
                    }
                }

        }
            System.out.println("Sort complete\nPress Enter to continue");
            input.nextLine();
        }

        // TODO: Search for a user specified item
        private void searchItems(String cargohold[]) {
            System.out.print("What Item would you like to search? ");
            boolean found = false;
            int counter = 0;
            String choice = input.nextLine();
            for (int i = 0; i < cargohold.length; i++) {
                if (cargohold[i] != null && cargohold[i].equals(choice)) {
                    counter++;
                    found = true;
                }
            }
            if (found) {
                System.out.print(choice + " - " + counter + "\n");
            }
            if (!found) {
                System.out.print("Item " + choice + " not found\n");
            }
            System.out.print("Press any key to continue");
            input.nextLine();

        }
            // TODO: Display only the unique items along with a count of any duplicates
            private void displayItems(String cargohold[]) {
                ArrayList replicatedData = new ArrayList();
                for (int i = 0; i < cargohold.length; i++) {
                    boolean found = false;
                    for(int k=0;k<replicatedData.size();k++){
                        if(replicatedData.get(k).equals(cargohold[i])){
                            found = true;
                        }
                    }
                    if(!found){
                        replicatedData.add(cargohold[i]);
                        int count = 0;
                        for(int j=0;j<cargohold.length;j++){
                            if(cargohold[i].equals(cargohold[j])){
                                count++;
                            }
                        }
                        System.out.print(cargohold[i] + "-"+count+"\n");
                    }
                }
            }
        }