I am in my final weeks of my first Java Class. I have the next part of my program due over the weekend and I am stuck. The assignment is as follows:
Modify the Inventory Program to use a GUI. The GUI should display the information one product at a time, including the item number, the name of the product, the number of units in stock, the price of each unit, and the value of the inventory of that product. In addition, the GUI should display the value of the entire inventory, the additional attribute, and the restocking fee.
I have my code written and it compiles and opens a window, but I can not figure out how to call the information that needs to be displayed. The information that needs to be displayed is what is gets displayed in a command window using System.out.println. Any help would be greatly appreciated.
import java.util.Arrays;
import java.awt.Dimension;
import java.awt.FlowLayout;
import javax.swing.JLabel;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JPanel;
class Inventory3 extends JFrame // declares public class inventory
{
public static void main(String args[]) // starts the program
{
ExtendDVD[] ExtendDVD = new ExtendDVD[3]; //creates instance of ExtendDVD
ExtendDVD[0] = new ExtendDVD(1, "Knocked Up", 2, 17.99, "129 Min");// declares a new item number, dvd title, quantity, and price
ExtendDVD[1] = new ExtendDVD(2, "Napolean Dynamite", 4, 14.99, "82 Min");
ExtendDVD[2] = new ExtendDVD(3, "Happy Gilmore", 6, 9.99, "92 Min");
Inventory3 x = new Inventory3();// declare second instance of inventory to sort
x.SortDVD(ExtendDVD);
for(int i = 0; i < 3; i++)// loop to call array list and set dvd = i
{
System.out.println();
System.out.println("The item number is " + ExtendDVD[i].getItemNumber()); // print item number
System.out.println("Product Title is " + ExtendDVD[i].getDvdTitle()); //print dvd title
System.out.println("The number of units in stock is " + ExtendDVD[i].getOnHand()); //print on hand quantity
System.out.println("The price of each DVD is $" + ExtendDVD[i].getDvdCost()); //print cost
System.out.println("The value of this Item is $" + ExtendDVD[i].value()); // print value of all on hand
System.out.println("The Duration of the Movie is " + ExtendDVD[i].getTime());//print duration of movie
System.out.printf( "The Restocking fee is $%.2f\n " , ExtendDVD[i].fee());// print restocking fee
}
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame = new JFrame("Inventory Info");
frame.setLayout(new FlowLayout());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String text = "getItemNumber";
JTextArea textAreal = new JTextArea(text, 5, 10);
textAreal.setPreferredSize(new Dimension(500, 500));
JScrollPane scrollPane = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
textAreal.setLineWrap(true);
frame.add(textAreal);
frame.pack();
frame.setVisible(true);
double total = 0;// initiate total inventory as double
for( int counter = 0; counter < ExtendDVD.length; counter++ )// calculate total inventory
total += ExtendDVD[ counter ].value();
System.out.println();
System.out.println( "The Value of All On Hand Inventory is $" + total );//print the total value of the inventory
}// end main
public void SortDVD(DVD[] theDVD)// method to sort array dvd
{
for (int index = 0; index < theDVD.length - 1; index++)
{
String s1 = theDVD[index].getDvdTitle(); // set title to sort
String s2 = theDVD[index + 1].getDvdTitle();// set title to compare in sort
if (comparewords(s1, s2)) // compares titles to sort
{
DVD temp = theDVD[index];// creates temporary instance of dvd
theDVD[index] = theDVD[index + 1];
theDVD[index + 1] = temp;
index = -1;
}
}
}
private boolean comparewords(String s1, String s2)// creates boolean and compares the two strings
{
boolean islarger = false; //continues to sort until true
for (int index = 0; index < s1.length(); index++) //loop to determine title length
{
if (index < s2.length())
{
if (s1.toLowerCase().charAt(index) > s2.toLowerCase().charAt(index))
{
islarger = true;//sort by longer name
break;
}
if (s1.toLowerCase().charAt(index) < s2.toLowerCase().charAt(index))
{
break;// stop
}
}
else
{
return true;
}
}
return islarger;// return larger moves title higher in the list
}
} // end class Inventory2
class DVD // declares class inventory
{
int itemNumber;// declares item number as in
String dvdTitle;// declares dvd title as string
int onHand; // declares on hand as int
double dvdCost;// declares cost as double
public DVD(int stockNumber, String title, int inStock, double price, String studio) // constructor
{
itemNumber = stockNumber;// intitiates stock number, title, instock, and
// price
dvdTitle = title;
onHand = inStock;
dvdCost = price;
}
// set DVD StockNumber //sets stock number
public void setItemNumber(int stockNumber)
{
itemNumber = stockNumber;
}
public int getItemNumber() // class item number
{
return itemNumber; // returns item number
} // end method get Dvd Item
public void setDvdTitle(String title) // set DVD Title
{
dvdTitle = title;
}
public String getDvdTitle() // gets and returns DVD Title
{
return dvdTitle;
}
public void setOnHand(int inStock) // Set on hand
{
onHand = inStock;
}
public int getOnHand() // gets and returns on hand
{
return onHand;
} //
public void setDvdCost(double price) // sets dvd cost
{
dvdCost = price;
}
public double getDvdCost() // gets and returns DVD cost
{
return dvdCost;
}
public double value() // calculates the value of stock
{
return dvdCost * onHand;
}
public String toString() // sets answer to string and outputs itme number, title, on hand, price, and stock value
{
return String.format("Item Number=%3d DVD Title=%-10s On Hand=%d Price=%.2f value=%.2f",
itemNumber, dvdTitle, onHand, dvdCost, value());
}
} // end class DVD
public class ExtendDVD extends DVD //declares class ExtendDVD that extends class DVD
{
private String time = "";//declares string time
ExtendDVD( int item, String name, int units, double price, String length )//constructor for ExtendDVD
{
super( item, name, units, price, length);// Call to Super Class DVD
this.time = length;
}
public String getTime() // call to get and return string time
{
return time;
}
public void setTime( String time )// set time
{
this.time = time;
}
public double fee() //calculate restocking fee
{
return 0.05 * getDvdCost();
}
}