Create A Department Management System in Java Assignment Solution

Instructions

Objective

Write a java assignment program to create department management system.

Requirements and Specifications

Source Code

package crn23004.MOD_03.ClothingDepartmentStore; import java.util.Random; import java.util.Scanner; public class ManagementSystem_EJP3_MainMenu { public static void main(String[] args) { // Initialize all variables needed for the program Scanner scanner = new Scanner(System.in); final double TRANSACTION_TAX = 0.0825f; int menuOption = 0; long customerID = 0; short itemID = 0; byte itemQuantity = 0; double itemPrice = 0; double itemTotalLinePrice = 0; double pricePerTransaction = 0; // Display the introduction System.out.println("Welcome to Maria's Clothing Department Store:"); System.out.println("We have various elegant clothes with affordable price."); System.out.println("Today is the last day of the discount of our new arrival products."); System.out.println("Our staff is friendly and helpful."); System.out.println("==================================================="); // Display user option System.out.println("0. Ch_4-7 Main Menu"); System.out.println("1. Main Menu"); System.out.println("2. End Program"); System.out.print("Option: "); menuOption = Integer.parseInt(scanner.nextLine()); if (menuOption == 0) { // processing new menu option // showing submenu for new submenu System.out.println("\n==================================================="); System.out.println("Ch_4-7 Main Menu\n"); System.out.println("0. New User Input Values"); System.out.println("1. End Program"); System.out.print("Option: "); // parsing user choice input menuOption = Integer.parseInt(scanner.nextLine()); if (menuOption == 0) { // processing submenu option System.out.println("\n==================================================="); System.out.println("New User Input Values\n"); int loopMem = 0; loopMem = 1; // keep iterating until user wants to quit while (loopMem == 1) { System.out.println("0. Add Members => X"); System.out.println("1. Add Items => X"); System.out.print("Option: "); menuOption = Integer.parseInt(scanner.nextLine()); if (menuOption == 0) { // processing "Add members" suboption Random random = new Random(); System.out.println("\n==================================================="); System.out.println("Add Members"); // asking user for number of users to add System.out.println("How many user to add to the database: "); int numberOfMembers = Integer.parseInt(scanner.nextLine()); int memNum; String database = ""; String personID, firstName, lastName, phone, email, password; // adding entered number of users System.out.println("Number of user adding ...." + numberOfMembers); for (int i = 1; i <= numberOfMembers; i++) { // reading each member attribute // accumulating result string value in database variable memNum = i; database += "memnum = " + memNum; personID = Integer.toString(random.nextInt(5383) + 4599); database += "_personID = " + personID; System.out.println("Enter your Firstname#" + i); firstName = scanner.nextLine(); database += "_firstName = " + firstName; System.out.println("Enter your Lastname#" + i); lastName = scanner.nextLine(); database += "lastName = " + lastName; System.out.println("Enter your Phone#" + i); phone = scanner.nextLine(); database += "_phone = " + phone; System.out.println("Enter your Email#" + i); email = scanner.nextLine(); database += "_email = " + email; System.out.println("Enter your Password#" + i); password = scanner.nextLine(); database += "_password = " + password + System.lineSeparator(); System.out.println("****User Update***"); } // outputting result database string System.out.print(database); } else if (menuOption == 1) { // processing "Add Items" suboption System.out.println("\n==================================================="); System.out.println("Add Items"); // initializing values of items boolean outOfStock = false; boolean addItem = true; long availableQuantity = 10; long qtyCase1 = availableQuantity; long qtyCase2 = availableQuantity; long qtyCase3 = availableQuantity; long qtyCase4 = availableQuantity; long qtyCase5 = availableQuantity; // keep asking for items until user wants while (addItem) { // Create variables of some data type with default value byte lineItem = 0; // Zero-out previous variables customerID = 0; itemID = 0; itemQuantity = 0; itemPrice = 0; itemTotalLinePrice = 0; pricePerTransaction = 0; System.out.println("Shop & Checkout"); // Display items to choose from System.out.println("Select an item, select line 1 - 5 from the menu below:"); System.out.println("Line Item: " + (++lineItem) + ", ID: 100, Name: Shirt, Description: Upper Garment, Available Quantity: " + qtyCase1 + ", Price Per Item: $5.00"); System.out.println("Line Item: " + (++lineItem) + ", ID: 200, Name: Pants, Description: Lower Garment, Available Quantity: " + qtyCase2 + ", Price Per Item: $6.00"); System.out.println("Line Item: " + (++lineItem) + ", ID: 300, Name: Boxers, Description: Male Underwear, Available Quantity: " + qtyCase3 + ", Price Per Item: $2.50"); System.out.println("Line Item: " + (++lineItem) + ", ID: 400, Name: Socks, Description: Foot Garment, Available Quantity: " + qtyCase4 + ", Price Per Item: $1.50"); System.out.println("Line Item: " + (++lineItem) + ", ID: 500, Name: Belt, Description: Waist Garment, Available Quantity: " + qtyCase5 + ", Price Per Item: $1.00"); System.out.print("Line Item Option: "); lineItem = Byte.parseByte(scanner.nextLine()); // Set the quantity and price per item based on selected line item switch (lineItem) { case 1: itemID = 100; availableQuantity = qtyCase1; itemPrice = 5; break; case 2: itemID = 200; availableQuantity = qtyCase2; itemPrice = 6; break; case 3: itemID = 300; availableQuantity = qtyCase3; itemPrice = 2.5f; break; case 4: itemID = 400; availableQuantity = qtyCase4; itemPrice = 1.5f; break; case 5: itemID = 500; availableQuantity = qtyCase5; itemPrice = 1; break; default: lineItem = -1; } System.out.println(); if (lineItem != -1) { // Display the selected item System.out.print(lineItem + " - " + itemID + " - "); switch (lineItem) { case 1: System.out.print("Shirt - Upper Garment"); break; case 2: System.out.print("Pants - Lower Garment"); break; case 3: System.out.print("Boxers - Male Underwear"); break; case 4: System.out.print("Socks - Foot Garment"); break; case 5: System.out.print("Belt - Waist Garment"); break; } System.out.println(" - " + availableQuantity + " - " + itemPrice); // Ask for the customer's ID System.out.print("Enter customer ID: "); customerID = Long.parseLong(scanner.nextLine()); // Ask for the quantity System.out.print("Enter quantity to purchase: "); itemQuantity = Byte.parseByte(scanner.nextLine()); if (itemQuantity > availableQuantity) { // Check if the available quantity is enough System.out.println("Out of stock, transaction cannot be processed!"); System.out.println("\n==================================================="); System.out.println("Thank you for purchasing in Maria's Clothing Department Store."); System.out.println("Have a great day with your new style!"); System.out.println("End of program."); outOfStock = true; break; } else if (itemQuantity > 0 && itemQuantity <= availableQuantity) { // If there's available quantity then process it System.out.println("Item is available for purchase!"); availableQuantity -= itemQuantity; switch (lineItem) { case 1: qtyCase1 -= itemQuantity; break; case 2: qtyCase2 -= itemQuantity; break; case 3: qtyCase3 -= itemQuantity; break; case 4: qtyCase4 -= itemQuantity; break; case 5: qtyCase5 -= itemQuantity; break; } // Display the available quantity left after purchase if (availableQuantity == 0) System.out.println("NOW - out of stock, current # of items left: " + availableQuantity); else System.out.println("Item is available, current # of items left: " + availableQuantity); // Calculate the total itemTotalLinePrice = itemPrice * itemQuantity; System.out.printf("\n%d's transactional balance equals $%.2f.\n", customerID, itemTotalLinePrice); pricePerTransaction = itemTotalLinePrice + (itemTotalLinePrice * TRANSACTION_TAX); System.out.printf("\nCustomer Identification Number: %d\n", customerID); System.out.printf("Transaction payment: $%.2f.\n", pricePerTransaction); } else { System.out.println("Invalid quantity."); } } // asking if user wants add another item System.out.println("Another item to add to cart? \n1 - Yes or \n2 - No"); int selectAnotherItem = Integer.parseInt(scanner.nextLine()); addItem = selectAnotherItem == 1; } if (!outOfStock) { System.out.printf("Amount Due: $%.2f%n", pricePerTransaction); } } System.out.println("1 - Again\n2 - Exit"); loopMem = Integer.parseInt(scanner.nextLine()); } } } else if (menuOption == 1) { // Show an inner menu System.out.println("\n==================================================="); System.out.println("1. Print user info"); System.out.println("2. Shop & Checkout"); System.out.println("3. End Program"); System.out.print("Option: "); menuOption = Integer.parseInt(scanner.nextLine()); if (menuOption == 1) { // Print all variable's values System.out.println("customerID = " + customerID); System.out.println("itemID = " + itemID); System.out.println("itemQuantity = " + itemQuantity); System.out.println("itemPrice = " + itemPrice); System.out.println("itemTotalLinePrice = " + itemTotalLinePrice); System.out.println("pricePerTransaction = " + pricePerTransaction); } else if (menuOption == 2) { // Create variables of some data type with default value byte lineItem = 0; long availableQuantity = 0; // Zero-out previous variables customerID = 0; itemID = 0; itemQuantity = 0; itemPrice = 0; itemTotalLinePrice = 0; pricePerTransaction = 0; // Display more options System.out.println("Select an item, select line 1 - 5 from the menu below:"); System.out.println("Line Item: " + (++lineItem) + ", ID: 100, Name: Shirt, Description: Upper Garment, Available Quantity: 1, Price Per Item: $5.00"); System.out.println("Line Item: " + (++lineItem) + ", ID: 200, Name: Pants, Description: Lower Garment, Available Quantity: 2, Price Per Item: $6.00"); System.out.println("Line Item: " + (++lineItem) + ", ID: 300, Name: Boxers, Description: Male Underwear, Available Quantity: 3, Price Per Item: $2.50"); System.out.println("Line Item: " + (++lineItem) + ", ID: 400, Name: Socks, Description: Foot Garment, Available Quantity: 4, Price Per Item: $1.50"); System.out.println("Line Item: " + (++lineItem) + ", ID: 500, Name: Belt, Description: Waist Garment, Available Quantity: 5, Price Per Item: $1.00"); System.out.print("Line Item Option: "); lineItem = Byte.parseByte(scanner.nextLine()); // Set the quantity and price per item based on selected line item switch (lineItem) { case 1: itemID = 100; availableQuantity = 1; itemPrice = 5; break; case 2: itemID = 200; availableQuantity = 2; itemPrice = 6; break; case 3: itemID = 300; availableQuantity = 3; itemPrice = 2.5f; break; case 4: itemID = 400; availableQuantity = 4; itemPrice = 1.5f; break; case 5: itemID = 500; availableQuantity = 5; itemPrice = 1; break; default: lineItem = -1; } System.out.println(); if (lineItem != -1) { // Display the selected item System.out.print(lineItem + " - " + itemID + " - "); switch (lineItem) { case 1: System.out.print("Shirt - Upper Garment"); break; case 2: System.out.print("Pants - Lower Garment"); break; case 3: System.out.print("Boxers - Male Underwear"); break; case 4: System.out.print("Socks - Foot Garment"); break; case 5: System.out.print("Belt - Waist Garment"); break; } System.out.println(" - " + availableQuantity + " - " + itemPrice); // Ask for the customer's ID System.out.print("Enter customer ID: "); customerID = Long.parseLong(scanner.nextLine()); // Ask for the quantity System.out.print("Enter quantity to purchase: "); itemQuantity = Byte.parseByte(scanner.nextLine()); if (itemQuantity > availableQuantity) { // Check if the available quantity is enough System.out.println("Out of stock, transactoin cannot be processed!"); System.out.println("\n==================================================="); System.out.println("Thank you for purchasing in Maria's Clothing Department Store."); System.out.println("Have a great day with your new style!"); System.out.println("End of program."); } else if (itemQuantity > 0 && itemQuantity <= availableQuantity) { // If there's available quantity then process it System.out.println("Item is available for purchase!"); availableQuantity -= itemQuantity; // Display the available quantity left after purchase if (availableQuantity == 0) System.out.println("NOW - out of stock, current # of items left: " + availableQuantity); else System.out.println("Item is available, current # of items left: " + availableQuantity); // Calculate the total itemTotalLinePrice = itemPrice * itemQuantity; System.out.printf("\n%d's transactional balance equals $%.2f.\n", customerID, itemTotalLinePrice); pricePerTransaction = itemTotalLinePrice + (itemTotalLinePrice * TRANSACTION_TAX); System.out.printf("\nCustomer Identification Number: %d\n", customerID); System.out.printf("Transaction payment: $%.2f.\n", pricePerTransaction); } else { System.out.println("Invalid quantity."); } } } else if (menuOption != 3) { System.out.println("Invalid option."); } } else if (menuOption != 2) { System.out.println("Invalid option."); } // Exit with a message System.out.println("\n==================================================="); System.out.println("Thank you for purchasing in Maria's Clothing Department Store."); System.out.println("Have a great day with your new style!"); System.out.println("Program Shutdown."); System.out.println("\n==================================================="); } }