Java Assignment Solution: Building a Comprehensive Rental System Program

Instructions

Objective

Write a java assignment program to create rental system.

Requirements and Specifications

Source Code

import java.util.Scanner; import javax.swing.JOptionPane; /* * Description: a template for the project...it is optional to use thsi exact template and feel free * to design and develop your solution your way as long as you follow the requirements i.e. individual effort, only covered tools and techniques) */ public class PP1_template { public static void main(String[] args) { // Create Scanner //declarations for cabanas and customers: //declare all parallel arrays for cabanas attibutes: number, type, max occupancy, fees per day, availability, das String cabNO[] = new String[5]; char cabType[] = new char[5]; int cabMaxAvail[] = new int[5]; double cabFees[] = new double[5]; boolean cabAvail[] = new boolean[5]; //declares all parallels arrays for customer: id, first, last, cabana rented Number, total balance (days times daily fees) int CustomerID[] = new int[100]; String CustomerFirstName[] = new String[100]; String CustomerLastName[] = new String[100]; int CabanaID[] = new int[100]; double RentalBalance[] = new double[100]; // Initialize all values in CabanaID to -1 for(int i = 0; i < 100; i++) { CabanaID[i] = -1; } //declare all working variables: cabana count, customer count, cabanFountAt, customerFoundAt int customer_count = 0; // count number of customers int cabana_count = 0; int cabanFoundAt = -1; int custFoundAt = -1; //...declare menu option populateCabanas(cabNO, cabType, cabFees, cabMaxAvail, cabAvail);//send references to all arrays for a cabanas int option = 0; while(option != 6) { option = menu(); switch(option) { case 0: // invalid option entered JOptionPane.showMessageDialog(null, "Please enter a valid menu option."); break; case 1: //get customer //increment count for customers customer_count++; // Check that there is space for customers if(customer_count < 100) { getCustomer(CustomerID, CustomerFirstName, CustomerLastName, customer_count-1); } else { JOptionPane.showMessageDialog(null, "You cannot create more customers!"); } break; case 2: //process rental by calling the get rental function cabana_count++; rent(cabNO, cabType, cabMaxAvail, cabFees, cabAvail, CustomerID, CabanaID, RentalBalance, customer_count); break; case 3: //prompt user to enter an ID for a customer String customer_id_str = JOptionPane.showInputDialog("Enter Customer ID"); int customer_id = -1; //validate try { customer_id = Integer.valueOf(customer_id_str); } catch(Exception ex) { JOptionPane.showMessageDialog(null, "Enter a valid Customer ID"); } custFoundAt = searchCustomer(customer_id, CustomerID, customer_count); if(custFoundAt != -1) // customer found { dispCustomer(CustomerID, CustomerFirstName, CustomerLastName, CabanaID, RentalBalance, custFoundAt, cabana_count, cabNO, cabType); } else { JOptionPane.showMessageDialog(null, "No customer found with that id"); } //call the search function for customers (pass the ref of id's and the count //and if found, //call to display this customer at position i.e. custFoundAt pass references of needed arrays break; case 4: //prompt user to enter a number for a cabana //validate //call the search function for cabanas: pass a ref of numbers and the count //and if found,: //call to display this cabana at position i.e. custFoundAt pass references of needed arrays String cabana_id = JOptionPane.showInputDialog("Enter Cabana ID"); cabanFoundAt = searchCabana(cabana_id, cabNO); if(cabanFoundAt != -1) // cabana found { dispCabana(cabNO, cabType, cabFees, cabMaxAvail, cabAvail, cabanFoundAt); } else { JOptionPane.showMessageDialog(null, "No Cabana found with that id"); } break; case 5: //call the search rental: pass all arrays and the count for current customers break; case 6: //end of program...goodbye!@ unless extra credits are to be assigned and be done after the user quit JOptionPane.showMessageDialog(null, "Good bye!"); break; default: //invalid option JOptionPane.showMessageDialog(null, "Please enter a valid menu option."); break; }//end switch(option) }//end while(option != 6) }//end main //------------------------------------------------------------------------ public static void populateCabanas(String[] cabNO, char[] cabType, double cabFees[], int cabMaxAvail[], boolean[] cabAvail) //receive the references for all arrays for cabanas { /* * cabNO[0] = "101"; * cabType[0] = 'D'; * cabFees[0] = 54.95 * cabMaxAvail[0] = 4; * cabAvail[0] = true; * *repeat for all other 4 cabanas populating position 1, 2, 3, 4 * */ cabNO[0] = "101"; cabType[0] = 'D'; cabFees[0] = 54.95; cabMaxAvail[0] = 4; cabAvail[0] = true; cabNO[1] = "102"; cabType[1] = 'R'; cabFees[1] = 25.75; cabMaxAvail[1] = 10; cabAvail[1] = true; cabNO[2] = "103"; cabType[2] = 'R'; cabFees[2] = 39.99; cabMaxAvail[2] = 8; cabAvail[2] = true; cabNO[3] = "104"; cabType[3] = 'D'; cabFees[3] = 95.85; cabMaxAvail[3] = 2; cabAvail[3] = true; cabNO[4] = "105"; cabType[4] = 'R'; cabFees[4] = 40.75; cabMaxAvail[4] = 6; cabAvail[4] = true; }//end populateCabanas public static int menu() { int option = 0; /* * -1-Create a customer -2-Process rental -3-Search Customer -4-Search for Cabana -5-Search for a Rental -6-Quit program */ // Display //validate user selection try { option = Integer.valueOf(JOptionPane.showInputDialog("1) Create a customer\n2) Process rental\n3) Search Customer\n4) Search for Cabana\n5) Search for a Rental\n6) Quit program")); } catch(Exception ex) { // do nothing } //parse return option; }//end menu //---------------------------------------------------------------------------- public static void getCustomer(int CustomerID[], String CustomerFirstName[], String CustomerLastName[], int customer_count) //arguments are reference to all affected array to create a customer...also current customer { String input = " "; //prompts to get the customer ID input = JOptionPane.showInputDialog("Enter Customer ID"); //validate int customer_id = -1; boolean valid_customer = true; try { customer_id = Integer.valueOf(input); if(input.length() != 6) { // id must be 6-digits long valid_customer = false; } } catch(Exception ex) { valid_customer = false; } //store in current location in array custID //prompts to get the customer first name String customer_first = ""; input = JOptionPane.showInputDialog("Enter Customer's First Name"); //validate if(input.length() > 0) { customer_first = input; } else { valid_customer = false; } //store in current location in array custLast //prompts to get the customer last name String customer_last = ""; input = JOptionPane.showInputDialog("Enter Customer's Last Name"); //validate if(input.length() > 0) { customer_last = input; } else { valid_customer = false; } //store in current location in array custLast if(valid_customer) { CustomerID[customer_count] = customer_id; CustomerFirstName[customer_count] = customer_first; CustomerLastName[customer_count] = customer_last; System.out.println("OK"); } //the cabana number for the cabana rented and the balance are determined in the rental process/function //make sure ou code all our validation functions at the end }//end getCustomer //-------------------------------------------------------------------------------- public static int searchCustomer(int customer_id, int CustomerID[], int customer_count) //pass the id of the customer to search for and the arra of id's { //run a loop through the array of id's and if found: for(int i = 0; i < customer_count; i++) { if(CustomerID[i] == customer_id){ return i; } } //return position //after the loop/not found return -1 return -1; }//end searchCustomer //--------------------------------------------------------------------------------- public static int searchCabana(String cabID, String cabNO[]) //pass references of the cabana ..you can do a similar and additional search by type for the purpose of rental { for(int i = 0; i < 5; i++) { if(cabID.compareTo(cabNO[i]) == 0) { return i; } } //run a loop through the array of cabana numbers and if found: //return position //after the loop/not found return -1 return -1; }//end searchCabana //---------------------------------------------------------------------------------- public static void rent(String cabNO[], char cabType[], int cabMaxAvail[], double cabFees[], boolean cabAvail[], int CustomerID[], int CabanaID[], double RentalBalance[], int customer_count) //pass references of all needed arrays and variables { //ask customer for ID int customer_id = Integer.valueOf(JOptionPane.showInputDialog("Enter Customer ID")); //call the search, and if found, int id = searchCustomer(customer_id, CustomerID, customer_count); int cabana_id = -1; if(id != -1) // customer found { //as for the type of the cabana ('D' for Delux or 'R' for regular char cab_type = ' '; while(true) { cab_type = JOptionPane.showInputDialog("Enter type of Cabana").charAt(0); if(cab_type == 'D' || cab_type == 'R') break; } //search the array of Cabanas for the customer type choice and if found for(int i = 0; i < 5; i++) { if(cabType[i] == cab_type) { //check if available and if available/true: if(cabAvail[i]) { cabana_id = i; break; } } } if(cabana_id != -1) // one available { // ask for occupants int occupants = Integer.valueOf(JOptionPane.showInputDialog("Enter number of occupants: ")); if(occupants <= cabMaxAvail[cabana_id]) { // Ask for days int days = Integer.valueOf(JOptionPane.showInputDialog("Enter number of days")); // Reservation is complete so process CabanaID[id] = cabana_id; // calculate balance double balance = cabFees[cabana_id]*days; RentalBalance[id] = balance; JOptionPane.showMessageDialog(null, String.format("Your rental has been processed for a total of $%.2f", balance)); } else { JOptionPane.showMessageDialog(null, "Sorry, the number of occupants exceeds the size of the Cabana"); } } else { JOptionPane.showMessageDialog(null, "There is no Cabana available."); } //ask how many guest and check against the max occupancy and if larger //reject reservation //if customer not found, ask that the customer be registered first (add a customer via the menu //if type not found ask again for the correct type (accepted D or R) //if not available if false then go back //if reservation is complete then: //calculate balance to be: fees times days //update the customer record by copying the Cabana number to the cabana array under customer and //copy the balance to the array balance under customer } else { JOptionPane.showMessageDialog(null, "You must create an account first."); } }//end rent //------------------------------------------------------------------------------------ public static void dispCustomer(int CustomerID[], String CustomerFirstName[], String CustomerLastName[], int CabanaID[], double RentalBalance[], int custFoundAt, int cabana_count, String cabNO[], char cabType[]) //pass the array ref of customer and the position (i.e. custFoundAt) { String result = String.format("ID: %d\nFirst Name: %s\nLast Name: %s\n", CustomerID[custFoundAt], CustomerFirstName[custFoundAt], CustomerLastName[custFoundAt]); // Check if there is a cabana processed for this customer if(CabanaID[custFoundAt] != -1) { int cabana_id = CabanaID[custFoundAt]; result += String.format("\nCabana ID: %s\nCabana Type: %s\nRental Price $%.2f", cabNO[cabana_id], cabType[cabana_id], RentalBalance[custFoundAt]); } else { result += "\nThis Customer has not processed any rent."; } JOptionPane.showMessageDialog(null, result); //display all information about this customer: id, first, last, cabanan rented if rental completed, balance }//end dispCustomer //------------------------------------------------------------------------------------ public static void dispCabana(String[] cabNO, char[] cabType, double cabFees[], int cabMaxAvail[], boolean[] cabAvail, int cabFoundAt) //pass the ref to all arrays of cabana and the position (i.e. cabFoundAt) { String availability = "yes"; if(!cabAvail[cabFoundAt]) { availability = "no"; } //display all information about this cabana: number, type, fees, availability, days JOptionPane.showMessageDialog(null, String.format("Cabana ID: %s\nCabana Type: %s\nDay rental rate: $%.2f\nOccupancy: %d\nAvailable: %s", cabNO[cabFoundAt], cabType[cabFoundAt], cabFees[cabFoundAt], cabMaxAvail[cabFoundAt], availability)); }//end dispCabana //-------------------------------------------------------------------------------------- public static void dispRental(int CustomerID[], String CustomerFirstName[], String CustomerLastName[], int CabanaID[], double RentalBalance[], int cabana_count, String cabNO[], char cabType[], int customer_count) //pass everything { String input = JOptionPane.showInputDialog("Enter Customer ID or Cabana ID"); boolean found = false; try{ int customer_id = Integer.valueOf(input); int custFoundAt = searchCustomer(customer_id, CustomerID, customer_count); if(custFoundAt != -1) { dispCustomer(CustomerID, CustomerFirstName, CustomerLastName, CabanaID, RentalBalance, custFoundAt, cabana_count, cabNO, cabType); found = true; } else // then it is probably a Cabana { int cabanFoundAt = searchCabana(input, cabNO); int cusFoundAt = -1; if(cabanFoundAt != -1) { // search a customer such that has this cabana id for(int i = 0; i < cabana_count; i++) { if(CabanaID[i] == cabanFoundAt){ cusFoundAt = i; break; } } if(cusFoundAt != -1) { dispCustomer(CustomerID, CustomerFirstName, CustomerLastName, CabanaID, RentalBalance, custFoundAt, cabana_count, cabNO, cabType); } else { JOptionPane.showMessageDialog(null, "No Customer or Cabana Found"); } } else { JOptionPane.showMessageDialog(null, "No Customer or Cabana Found"); } } } catch(Exception ex) { JOptionPane.showMessageDialog(null, "No Customer or Cabana Found"); } //ask if search by customer ID or cabana Number //conduct the selected search //if transaction/rental is found and search by cust ID then //display all the info about this customer by calling the dispCustomer and display the related Cabana and balance //if search y cabana number is selected then //call the cabana search function and if found //display everything about the customerr and the cabana. }//end dispRental //---------------------------------------------------------------------------------------- //code all your validations here....i.e. checkCustID, checkName, checkcabanNO, checkGuests, checkDays, ...etc..etc //code an extra search by cabana type where you will be searching for 'D' for Dlux or 'R' for regular //note that D and R are single char so you do not need to use the .equal(0 or similar methods..a normal comparison using '==' is required }//end class PP1