import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class CdTextFrame extends JFrame
{
	public JTextField cdField1; // JLabel for CdwArtist class
	public JTextField cdField2;
	public JTextField cdField3;
	public JTextField cdField4;
 
	//CdFrame contructor adds Text Fields to JFrame
	public CdTextFrame()
	{
		super("CD Inventory");
		setLayout(new FlowLayout());  // set frame layout
 
		// 1st Field 
		cdField1 = new JTextField("CD Name");
		cdField1.setEditable(false); 
		add(cdField1);
		// 2nd Field
		cdField2 = new JTextField(10);
		cdField2.setToolTipText("Enter CD Name Here");
		add (cdField2);
		// 3rd Field 
		cdField3 = new JTextField("Artist");
		cdField3.setEditable(false); 
		add(cdField3);
		// 4th Field
		cdField4 = new JTextField(10);
		cdField4.setToolTipText("Enter Performing Artist Here");
		add (cdField4);
 
		// register event handlers
		CdFieldHandler handler = new CdFieldHandler();
		cdField2.addActionListener(handler);
		cdField4.addActionListener(handler);
 
		} // end constructor CdFrame
 
		// private inner class for event handling
		private class CdFieldHandler implements ActionListener
		{
			// process text field events method
			public void actionPerformed(ActionEvent event)
			{
			String string = "";   //declare string to display 
 
			// user pressed Enter in JTextField cdField2
			if (event.getSource()==cdField2)
				string = String.format("textField2: %s",
				event.getActionCommand());
 
			// user pressed Enter in JTextField cdField4
			if (event.getSource()==cdField4)
				string = String.format("textField4: %s",
				event.getActionCommand());
 
			// display JTextField content
			JOptionPane.showMessageDialog(null, string);
			} // end process text fields method
		} // end event handling class
} // end clss CdFrame

import javax.swing.JFrame;
 
public class Cdguitext
{
	public static void main(String args[])
	{
	CdTextFrame cdTextFrame = new CdTextFrame(); // create cdframe
	cdTextFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	cdTextFrame.setSize(375,180);
	cdTextFrame.setVisible(true);
	} // end main
} // end class

 
import java.util.*;
 
public class Inventory 
{// begin class Inventory
 
 public static int maxlength = 0;
  public static CdwArtist[] sort(CdwArtist[] cds)
   { 
	Arrays.sort(cds, 0, maxlength); 
	return cds;
	}
 
 public static String toString(CdwArtist[] cds)
  { 
  	String toSend = "\n\n"; 
 
	for(int i = 0; i < maxlength; i ++)
	toSend = toSend + cds[i].getName() + "\n";
	return toSend;
  } 
 
  public static void main(String[] args)
  {//begin method main
 
   // create cd Array 
	CdwArtist[] cds = new CdwArtist[100];
 
 
	float totalValue = 0; 
 
	Scanner input = new Scanner(System.in); // create scanner 
 
	// begin display method 
	System.out.print("Enter up to 99 CD Names or STOP to Exit: "); 
	String nameInput = input.nextLine(); //read cd name 
 
 
	 for(int i = 0; i < cds.length && !nameInput.equalsIgnoreCase("STOP"); i++)
	 {// begin main While
	  cds[i] = new CdwArtist();
	  cds[i].setName(nameInput);
 
	  System.out.print("Enter CD Artist Name: "); // prompt for artist name
	  CdwArtist artist = new CdwArtist(input.nextLine()); 
 
	  System.out.print("Enter Price of this CD: "); // prompt for price
	  cds[i].setPrice(input.nextFloat()); // price input from user. 
	  while (cds[i].getPrice()<= 0) 
	 	{// begin while 
	   	System.out.print("Price Must Be Greater Than Zero. Enter Price: ");
			cds[i].setPrice(input.nextFloat()); // cd price loop from user.
	  	} // End while 
 
	  System.out.print("Enter CD Item Number: "); // prompt for cd item number
	  cds[i].setItemno(input.nextInt()); // cds item number input from user 
 
	  System.out.print("Enter Number of these CDs in Stock: "); // prompt for cd stock 
	  cds[i].setNstock(input.nextInt()); // cds in stock input from user
 
	  System.out.print("\n\nCD "+cds[i].getName()+", Item Number "+cds[i].getItemno()+","); // display name 
	  System.out.printf(" is worth %c%.2f.",'$', + cds[i].getPrice());//
	  System.out.print("\nWe have "+ cds[i].getNstock()+" copies in stock,");
	  System.out.printf(" making our inventory for this cd worth %c%.2f.\n", '$', + cds[i].getValue()); //inventory value 
 
	  if(cds[i].getValue() != -1) totalValue = totalValue + cds[i].getValue();
	  System.out.printf("Combined Inventory for all CDs is Worth %c%.2f.\n\n\n", '$', + totalValue);
 
	  System.out.print("Enter up to 99 CD Names or STOP to Exit: "); 
	  input=new Scanner(System.in); // internal loop prompt 
	  nameInput = input.nextLine(); //name input from user 
 
	  maxlength ++; 
	  } // End main While
 
	   //System.out.println(toString(cds));
		System.out.println(toString(sort(cds))); 
		System.out.print("Ending Program."); 
 
   }// end method main 
} // end class Payroll