I can not figure out how to add to my array. The invntory class and dvdrate subclass is not to change. So within my InventoryProgram2 I am told to copy a temp array with the addition of an element to the actual array using the add button. This is so I can browse through the array using the first, last,next,and previous buttons.
// Inventory subclass
// rating feature
public class dvdrate extends Inventory
{
private String dvdRating;
private double fee;
public dvdrate(String ProductName, String Item, int Units, double Price, String dvdRating)
{
super(ProductName, Item, Units, Price);
this.dvdRating = dvdRating;
}
public void setdvdRating (String dvdRating)
{
this.dvdRating = dvdRating;
}
public String getdvdRating()
{
return dvdRating;
}
public void setfee (double fee)
{
this.fee = fee;
}
public double getfee()
{
return getPrice()*0.05;
}
public static double TotalInventoryValue(dvdrate[] dvds)
{
double TotalInventoryValue=0;
for (int a=0;a < dvds.length;a++)
{
TotalInventoryValue += dvds[a].getInventoryValue();
}
return TotalInventoryValue;
}
public double getInventoryValue()
{
double InventoryValue = 0;
InventoryValue = getUnits()*getPrice();
return InventoryValue + (InventoryValue*0.05);
}
}//end class//week 5 inventory.java
//inventory class that contains item number, name of product, number of units, and price per unit.
public class Inventory
{
private String ProductName;
private String Item;
private int Units;
private double Price;
private double InventoryValue;
private double TotalInventoryValue;
private int a;
// Inventory constructor
public Inventory()
{
this(null,null,0,0);
}// end Inventroy constructor
public Inventory(String ProductName, String Item, int Units, double Price)
{
setInventory1(ProductName, Item, Units, Price);
}
public String toString()
{
return String.format("%s,%s,%s,%s,",this.ProductName, this.Item, this.Units, this.Price);
}
public void setInventory1( String ProductName, String Item, int Units, double Price)
{
setProductName(ProductName);
setItem(Item);
setUnits(Units);
setPrice(Price);
}
//set productName
public void setProductName(String ProductName)
{
this.ProductName = ProductName;
}//end set ProductName
//retrieve productName
public String getProductName()
{
return this.ProductName;
}//end getProductName
//set Item
public void setItem(String Item)
{
this.Item = Item;
}// end setItem
//retrieve Item
public String getItem()
{
return this.Item;
}// end getItem
//set Units
public void setUnits( int Units)
{
this.Units = Units;
}//set Units
//retrieve Units
public int getUnits()
{
return this.Units;
}//end get Units
//set Price
public void setPrice(double Price)
{
this.Price = Price;
}// end setPrice
//retrieve Price
public double getPrice()
{
return this.Price;
}//end getPrice
public double getInventoryValue()
{
InventoryValue = Units*Price;
return this.InventoryValue;
}
public static double TotalInventoryValue(Inventory[] dvds)
{
double TotalInventoryValue=0;
for (int a=0;a < dvds.length;a++)
{
TotalInventoryValue += dvds[a].InventoryValue;
}
return TotalInventoryValue;
}
public static Inventory[]SortInventory(Inventory[] dvds)
{
Inventory tmp;
for (int a=0;a<dvds.length;a++)
{
for(int b=a+1;b<dvds.length;b++)
{
String s1 =dvds[a].getProductName();
String s2 =dvds[b].getProductName();
if(s1.compareTo(s2)>0)
{
tmp = dvds[a];
dvds[a] = dvds[b];
dvds[b] = tmp;
}
}
}
return dvds;
}
}//end class// inventory test program
//Invetory object and call
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import java.io.RandomAccessFile;
import java.io.IOException;
public class InventoryProgram2 extends JFrame
{
private JPanel buttonJPanel;
private JPanel buttonJPanel2;
private JPanel labels;
private JPanel results;
private JButton First;
private JButton Previous;
private JButton Next;
private JButton Last;
private JButton Loadfile;
private JButton Add;
private JButton Modify;
private JButton Delete;
private JButton Search;
private JButton Save;
private JLabel logolabel;
private JLabel labela[];
private JTextField Item;
private JTextField ProductName;
private JTextField Rating;
private JTextField Units;
private JTextField Price;
private JTextField Fee;
private JTextField InventoryValue;
private JTextField TotalValue;
private JTextField Index;
private int a;
public InventoryProgram2()
{
super( "Inventory of DVD Movies" );
labela = new JLabel[9];
labels = new JPanel();
labels.setLayout(new GridLayout(9,1,2,2));
for (int b = 0; b < labela.length;b++)
{
labela[0] = new JLabel("<html><font size=+1> Index</html>");
labela[1] = new JLabel("<html><font size=+1> ItemID</html>");
labela[2] = new JLabel("<html><font size=+1> Name</html>");
labela[3] = new JLabel("<html><font size=+1> Rating</html>");
labela[4] = new JLabel("<html><font size=+1> # in Stock</html>");
labela[5] = new JLabel("<html><font size=+1> Price</html>");
labela[6] = new JLabel("<html><font size=+1> Restocking Fee (5%)</html>");
labela[7] = new JLabel("<html><font size=+1> Inventory Value with fee</html>");
labela[8] = new JLabel("<html><font size=+1> Total Value with fee(for all the items)</html>");
labels.add(labela[b]);
}
add(labels, BorderLayout.WEST);
results = new JPanel();
results.setLayout(new GridLayout(9,1,2,2));
Index = new JTextField(23);
Index .setEditable(false);
results.add(Index );
Item = new JTextField(23);
Item.setEditable(false);
results.add(Item);
ProductName = new JTextField();
ProductName.setEditable(false);
results.add(ProductName);
Rating = new JTextField();
Rating.setEditable(false);
results.add(Rating);
Units = new JTextField();
Units.setEditable(false);
results.add(Units);
Price = new JTextField();
Price.setEditable(false);
results.add(Price);
Fee = new JTextField();
Fee.setEditable(false);
results.add(Fee);
InventoryValue = new JTextField();
InventoryValue.setEditable(false);
results.add(InventoryValue);
TotalValue = new JTextField();
TotalValue.setEditable(false);
results.add(TotalValue);
buttonJPanel = new JPanel();
Icon logo = new ImageIcon(getClass().getResource("DSC00228.gif"));
logolabel = new JLabel(logo);
buttonJPanel.add( logolabel);
First = new JButton("First");
buttonJPanel.add(First);
Previous = new JButton("Previous");
buttonJPanel.add(Previous);
Next = new JButton("Next");
buttonJPanel.add(Next);
Last = new JButton("Last");
buttonJPanel.add(Last);
ButtonHandler handler = new ButtonHandler();
First.addActionListener(handler);
Previous.addActionListener(handler);
Next.addActionListener(handler);
Last.addActionListener(handler);
buttonJPanel2 = new JPanel();
Loadfile = new JButton("Load file");
buttonJPanel2.add(Loadfile);
Add = new JButton("Add");
buttonJPanel2.add(Add);
Modify = new JButton("Modify");
buttonJPanel2.add(Modify);
Delete = new JButton("Delete");
buttonJPanel2.add(Delete);
Search = new JButton("Search");
buttonJPanel2.add(Search);
Save = new JButton("Save");
buttonJPanel2.add(Save);
Loadfile.addActionListener(handler);
Add.addActionListener(handler);
Modify.addActionListener(handler);
Delete.addActionListener(handler);
Search.addActionListener(handler);
Save.addActionListener(handler);
add(results, BorderLayout.EAST);
add( buttonJPanel, BorderLayout.SOUTH );
add(buttonJPanel2, BorderLayout.NORTH);
dvds[0] = new dvdrate("Superman","111",11,12.99,"PG");
dvds[1] = new dvdrate("Batman Returns","222",9,11.99,"PG 13");
dvds[2] = new dvdrate("Madagascar","333",10,10.99,"G");
dvds[3] = new dvdrate("Cars","444",15,13.99,"G");
}//end public constructor
dvdrate[] dvds= new dvdrate[4];
private class ButtonHandler implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
Inventory.SortInventory(dvds);
event.getActionCommand();
if (event.getActionCommand() == "Next")
{
a++;
if ( a >= dvds.length)
{
a = 0;
}
}
if (event.getActionCommand() == "Previous")
{
a--;
if ( a <0)
{
a =dvds.length;
a--;
}
}
if (event.getActionCommand()== "Last")
{
a = dvds.length-1;
}
if (event.getActionCommand()== "First")
{
a = 0;
}
if ( event.getActionCommand()=="Add")
{
a = dvds.length;
Index.setText(String.valueOf(a));
ProductName.setEditable(true);
ProductName.setText("");
Item.setEditable(true);
Item.setText("");
Rating.setEditable(true);
Rating.setText("");
Units.setEditable(true);
Units.setText(String.valueOf(0));
Price.setEditable(true);
Price.setText(String.format("$0.00"));
Add.setText("Click to Add");
}
if ( event.getActionCommand()=="Click to Add")
{
ProductName.setEditable(false);
Item.setEditable(false);
Rating.setEditable(false);
Units.setEditable(false);
Price.setEditable(false);
Add.setText("Add");
}
if (event.getActionCommand()=="Modify")
{
Modify.setText("Click to Modify!");
ProductName.setEditable(true);
Item.setEditable(true);
Rating.setEditable(true);
Units.setEditable(true);
Price.setEditable(true);
}
if (event.getActionCommand()=="Click to Modify!")
{
ProductName.setEditable(false);
Item.setEditable(false);
Rating.setEditable(false);
Units.setEditable(false);
Price.setEditable(false);
Modify.setText("Modify");
}
if (event.getActionCommand()=="Search")
{
ProductName.setEditable(true);
Search.setText("GO");
}
if (event.getActionCommand()=="GO")
{
ProductName.setEditable(false);
Search.setText("Search");
}
Index.setText(String.valueOf(a));
Item.setText( dvds[a].getItem());
ProductName.setText(dvds[a].getProductName());
Rating.setText(dvds[a].getdvdRating());
Units.setText(String.valueOf(dvds[a].getUnits()));
Price.setText(String.format("$%.2f",dvds[a].getPrice()));
Fee.setText(String.format("$%.2f",dvds[a].getfee()));
InventoryValue.setText(String.format("$%.2f",dvds[a].getInventoryValue()));
TotalValue.setText(String.format("$%.2f",dvdrate.TotalInventoryValue(dvds)));
}
}
public static void main( String args[])
{
//main method begins
InventoryProgram2 b = new InventoryProgram2(); // create LabelFrame
b.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
b.setSize(600,380); // set frame size
b.setVisible( true );
}//end method main
}//end Class InventoryProgram