This code was done to allow a user to input, edit, search, delete and print a report of all the products in the company. Is there any way to improve my code?
public class Admin
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
String menuTask, exit;
Scanner sc = new Scanner(System.in); // Allows user input
Products product = new Products(); // Creates the Products class
System.out.println("BRIGHT FUTURE TECHNOLOGIES APPLICATION");
System.out.println("***************************************");
System.out.println("Enter (1) to launch menu or any other key to exit: ");
exit = sc.next();
if (exit.equals("1") == false) {
product.ExitApplication(); // Exits the application
}
do {
menuTask = product.DisplayMenu(); // Displays the menu
switch (menuTask) {
case "1":
exit = product.CaptureProduct(); // Allows user to capture a product
break;
case "2":
exit = product.SearchProduct(); // Allows user to search for a product
break;
case "3":
exit = product.UpdateProduct(); // Allows user to update the product data
break;
case "4":
exit = product.DeleteProduct(); // Allows user to delete a product
break;
case "5":
exit = product.DisplayReport(); // Displays all the products and its data
break;
case "6":
product.ExitApplication(); // Exits the application
break;
default:
System.out.println("Thats not a valid key"); // Displays if the user enters an invalid key
}
} while (exit.equals("1")); // Loops executes at least once and will continue until the user wants to exit
}
}
Products.java
public class Products {
Scanner sc = new Scanner(System.in);
ReportData data = new ReportData();
public String SearchProduct() {
int locationOfProduct;
System.out.println("Please enter the product code to search: ");
locationOfProduct = data.getLocationOfProduct(sc.next());
System.out.println("***************************************");
if (locationOfProduct != -1) {
System.out.println("***************************************");
System.out.println("PRODUCT SEARCH RESULTS");
System.out.println("***************************************");
data.toString(locationOfProduct);
} else {
System.out.println("The product cannot be located. Invalid product key");
}
System.out.println("Enter (1) to launch the menu or any other key to exit");
return sc.next();
}
public void SaveProduct(String prodName, String prodCat, String prodCode, String prodSup, String prodWar, int prodLevel, double prodPrice) {
data.setProductName(prodName);
switch (prodCat) {
case "1":
data.setProductCat("Desktop Computer");
break;
case "2":
data.setProductCat("Laptop");
break;
case "3":
data.setProductCat("Tablet");
break;
case "4":
data.setProductCat("Printer");
break;
case "5":
data.setProductCat("Gaming Console");
break;
}
data.setProductCode(prodCode);
data.setProductSup(prodSup);
data.setProductWar(prodWar);
data.setProductLevel(prodLevel);
data.setProductPrice(prodPrice);
}
public String UpdateProduct() {
String update, war;
int locationOfProduct;
System.out.println("Please enter the product code to update: ");
locationOfProduct = data.getLocationOfProduct(sc.next());
System.out.println("***************************************");
if (locationOfProduct != -1) {
System.out.println("Update the warranty? (y) Yes, (n) No ");
update = sc.next();
if (update.equals("y")) {
System.out.printf("Indicate the new warrenty for %s. Enter (1) for 6 months or any other key for 2 years ", data.getProductName().get(locationOfProduct));
if (sc.next().equals("1")) {
war = "6 Months";
} else {
war = "2 years";
}
data.getProductWar().set(locationOfProduct, war);
System.out.println("Update the product price? (y) Yes, (n) No ");
update = sc.next();
if (update.equals("y")) {
System.out.printf("Enter the new price for %s ", data.getProductName().get(locationOfProduct));
data.getProductPrice().set(locationOfProduct, sc.nextDouble());
}
System.out.println("Update the stock level? (y) Yes, (n) No ");
update = sc.next();
if (update.equals("y")) {
System.out.printf("Enter the new stock level for %s ", data.getProductName().get(locationOfProduct));
data.getProductLevel().set(locationOfProduct, sc.nextInt());
}
}
} else {
System.out.println("The product cannot be located. Invalid product key");
}
System.out.println("Product details have been saved successfully");
System.out.println("Enter (1) to launch the menu or any other key to exit");
return sc.next();
}
public String DeleteProduct() {
int locationOfProduct;
System.out.println("Please enter the product code to delete: ");
System.out.println("***************************************");
locationOfProduct = data.getLocationOfProduct(sc.next());
if (locationOfProduct != -1) {
data.getProductCat().remove(locationOfProduct);
data.getProductCode().remove(locationOfProduct);
data.getProductLevel().remove(locationOfProduct);
data.getProductName().remove(locationOfProduct);
data.getProductPrice().remove(locationOfProduct);
data.getProductSup().remove(locationOfProduct);
data.getProductWar().remove(locationOfProduct);
} else {
System.out.println("The product cannot be located. Invalid product key");
}
System.out.println("Enter (1) to launch the menu or any other key to exit");
return sc.next();
}
public String DisplayMenu() {
System.out.println("Please select one of the following menu items: ");
System.out.println("(1) Capture a new product. \n" + "(2) Search for a product. \n" + "(3) Update a product. \n" + "(4) Delete a product. \n" + "(5) Print report. \n" + "(6) Exit application. ");
return sc.next();
}
public String CaptureProduct() {
String name, cat, sup, war;
int level;
double price;
System.out.println("CAPTURE A NEW PRODUCT");
System.out.println("*********************");
System.out.println("Enter the product code: ");
String code = sc.nextLine();
System.out.println("Enter the product name: ");
name = sc.nextLine();
System.out.print("Select the product Category:\n" + "Desktop Computer - 1\n" + "Laptop - 2\n" + "Tablet - 3\n" + "Printer - 4\n" + "Gaming Console - 5 \nProduct Category >> ");
cat = sc.nextLine();
System.out.println("Indicate the product warrenty. Enter (1) for 6 months or any other key for 2 years");
if (sc.next().equals("1")) {
war = "6 Months";
} else {
war = "2 years";
}
System.out.printf("Enter the price for %s: ", name);
price = sc.nextDouble();
System.out.printf("Enter the stock level for %s: ", name);
level = sc.nextInt();
System.out.printf("Enter the supplier for %s: ", name);
sup = sc.next();
SaveProduct(name, cat, code, sup, war, level, price); // Saves the details of the product
System.out.println("Product details have been saved successfully");
System.out.println("Enter (1) to launch the menu or any other key to exit");
return sc.next();
}
public void ExitApplication() {
System.exit(0);
}
public String DisplayReport() {
double totalPrice = 0, itemPrice;
int count;
System.out.println("PRODUCT REPORT");
System.out.println("=====================================================");
count = data.getProductCat().size();
for (int i = 0; i < count; i++) {
System.out.printf("PRODUCT %s\n", i + 1);
System.out.println("-----------------------------------------------------");
data.toString(i);
System.out.println("-----------------------------------------------------");
itemPrice = Integer.parseInt(data.getProductSup().get(i)) * data.getProductPrice().get(i);
totalPrice = totalPrice + itemPrice ;
}
System.out.println("=====================================================");
System.out.printf("TOTAL PRODUCT COUNT: \t%s\n", count);
System.out.printf("TOTAL PRODUCT VALUE: \tR %s\n", totalPrice);
System.out.printf("AVERAGE PRODUCT VALUE: \tR %s\n", totalPrice / count);
System.out.println("=====================================================");
System.out.println("Enter (1) to launch the menu or any other key to exit");
return sc.next();
}
}
ReportData.java
public class ReportData {
ArrayList<String> productName = new ArrayList<>();
ArrayList<String> productCat = new ArrayList<>();
ArrayList<String> productCode = new ArrayList<>();
ArrayList<String> productSup = new ArrayList<>();
ArrayList<String> productWar = new ArrayList<>();
ArrayList<Integer> productLevel = new ArrayList<>();
ArrayList<Double> productPrice = new ArrayList<>();
public void setProductName(String productName) {
this.productName.add(productName);
}
public void setProductCat(String productCat) {
this.productCat.add(productCat);
}
public void setProductCode(String productCode) {
this.productCode.add(productCode);
}
public void setProductSup(String productSup) {
this.productSup.add(productSup);
}
public void setProductWar(String productWar) {
this.productWar.add(productWar);
}
public void setProductLevel(int productLevel) {
this.productLevel.add(productLevel);
}
public void setProductPrice(double productPrice) {
this.productPrice.add(productPrice);
}
public ArrayList<String> getProductName() {
return productName;
}
public ArrayList<String> getProductCat() {
return productCat;
}
public ArrayList<String> getProductCode() {
return productCode;
}
public ArrayList<String> getProductSup() {
return productSup;
}
public ArrayList<String> getProductWar() {
return productWar;
}
public ArrayList<Integer> getProductLevel() {
return productLevel;
}
public ArrayList<Double> getProductPrice() {
return productPrice;
}
public int getLocationOfProduct(String prodCode) {
return getProductCode().indexOf(prodCode); // Gets the location of the product in the array
}
public void toString(int locationOfProduct){
System.out.printf("PRODUCT CODE:\t\t%s\n", getProductCode().get(locationOfProduct));
System.out.printf("PRODUCT NAME:\t\t%s\n", getProductName().get(locationOfProduct));
System.out.printf("PRODUCT WARRANTY:\t%s\n", getProductWar().get(locationOfProduct));
System.out.printf("PRODUCT CATEGORY:\t%s\n", getProductCat().get(locationOfProduct));
System.out.printf("PRODUCT PRICE:\t\tR%s\n", getProductPrice().get(locationOfProduct));
System.out.printf("PRODUCT STOCK LEVEL:\t%s\n", getProductLevel().get(locationOfProduct));
System.out.printf("PRODUCT SUPPLIER:\t%s\n", getProductSup().get(locationOfProduct));
}
}
