import java.util.ArrayList; public class Catalog { private ArrayList<CatalogItem
ID: 3733935 • Letter: I
Question
import java.util.ArrayList;
public class Catalog {
private ArrayList<CatalogItem> catalogItems;
public static int count;
public Catalog() {
catalogItems = new ArrayList<CatalogItem>();
count = 0;
}
public void add (CatalogItem catalogItem) {
if (count < 100) {
catalogItems.add(catalogItem);
count++;
} else {
System.out.println("No more capacity to add catalog item");
}
}
public void add (int itemID, String description, double priceValue) {
if (count < 100) {
CatalogItem catalogItem = new CatalogItem(itemID, description, priceValue);
catalogItems.add(catalogItem);
count++;
} else {
System.out.println("No more capacity to add catalog item");
}
}
public void update (int itemID, String description) {
for (int i=0;i<count;i++) {
CatalogItem catalogItem = catalogItems.get(i);
if (catalogItem.getItemId() == itemID) {
catalogItem.setDescription(description);
break;
}
}
}
public void update (int itemID, double priceValue) {
for (int i=0;i<count;i++) {
CatalogItem catalogItem = catalogItems.get(i);
if (catalogItem.getItemId() == itemID) {
catalogItem.setPriceValue(priceValue);
break;
}
}
}
public void priceIncrease(double percentageAmount ) {
for (int i=0;i<count;i++) {
CatalogItem catalogItem = catalogItems.get(i);
double newPriceValue = (catalogItem.getPriceValue() * percentageAmount) + catalogItem.getPriceValue();
catalogItem.setPriceValue(newPriceValue);
}
}
public CatalogItem getCatalogItem (int itemID) {
for (int i=0;i<count;i++) {
CatalogItem catalogItem = catalogItems.get(i);
if (catalogItem.getItemId() == itemID) {
return catalogItem;
}
}
return null;
}
public void display() {
if (count > 0) {
System.out.println(" The Catalog consists of "+count+" items.");
for (int i=0;i<count;i++) {
CatalogItem catalogItem = catalogItems.get(i);
System.out.println(catalogItem);
}
} else {
System.out.println(" The Catalog consists of 0 items.");
}
}
@Override
public String toString() {
String output = " The Catalog consists of "+count+" items. ";
for (int i=0;i<count;i++) {
CatalogItem catalogItem = catalogItems.get(i);
output = output + catalogItem + " ";
}
return output;
}
}
***********************************
public class CatalogItem {
private int itemID;
private String description;
private double priceValue;
public CatalogItem() {
this.itemID = 0;
this.description = "";
this.priceValue = 0;
}
public CatalogItem(int itemID, String description, double priceValue) {
this.itemID = itemID;
this.description = description;
this.priceValue = priceValue;
}
public CatalogItem(CatalogItem catalogItem) {
this.itemID = catalogItem.itemID;
this.description = catalogItem.description;
this.priceValue = catalogItem.priceValue;
}
public int getItemId() {
return itemID;
}
public String getDescription() {
return description;
}
public double getPriceValue() {
return priceValue;
}
public void setDescription(String description) {
this.description = description;
}
public void setPriceValue(double priceValue) {
this.priceValue = priceValue;
}
@Override
public String toString() {
return "Item: " + itemID + ", " + description + ". Price: $" + String.format("%.2f", priceValue);
}
}
can you put javadocs doumentation
and see if there are any == methods that can be replaced with .equals methods ?
thank you
Explanation / Answer
import java.util.ArrayList; public class Catalog { private ArrayList catalogItems; public static int count; public Catalog() { catalogItems = new ArrayList(); count = 0; } /** * * @param catalogItem (catalog item to add to catalog) * Adds given catalogItem to the catalog */ public void add (CatalogItem catalogItem) { if (count < 100) { catalogItems.add(catalogItem); count++; } else { System.out.println("No more capacity to add catalog item"); } } /** * * @param itemID (id of catalog item) * @param description (description of catalog item) * @param priceValue (price of catalog item) * Adds a new catalog item with id, description and price */ public void add (int itemID, String description, double priceValue) { if (count < 100) { CatalogItem catalogItem = new CatalogItem(itemID, description, priceValue); catalogItems.add(catalogItem); count++; } else { System.out.println("No more capacity to add catalog item"); } } /** * * @param itemID (id of catalog item) * @param description (new description of catalog item) * Updates description of given catalog item */ public void update (int itemID, String description) { for (int i=0;iRelated Questions
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