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

import java.lang.Comparable;
 
public class Compactdisk implements Comparable
{// begin class
 
	//InventoryCD class has 5 fields
	private String name; //  Name of cd
	private float price; // price of cd
	private int itemno; // item number of cd
	private int nstock; // how many units in stock	
	private int i; // cd counter for array
	private float value; // value for single cd inventory
 
 
	//Compact disk class constructor
	public Compactdisk()
 
		// 4 fields need to be set up
		{ 
		name = "";
		price = 0;
		itemno = 0;
		nstock = 0;
		i = 0;
		value = 0;
		}
 
		// set values
	   public void setName(String diskName)
	   {
	   name = diskName;
	   }
		public void setPrice(float cdPrice)
	   {
	   price = cdPrice;
	   }
		public void setItemno(int cdItemno)
	   {
	   itemno = cdItemno;
	   }
		 public void setNstock(int cdStock)
	   {
	   nstock = cdStock;
	   }
		public void setValue(float cdValue)
		{
		value = cdValue;
		}
		public void seti(int Count)
		{
		i = Count;
		}
 
 
	   // return values
		public String getName()
		{	
		return (name);
		}
		public float getPrice()
		{	
		return (price);
		}
		public int getItemno()
		{	
		return (itemno);
		}
		public int getNstock()
		{	
		return (nstock);
		}
		public int compareTo(Object in)
	   {
	   return ((Comparable)name.toLowerCase()).compareTo((Comparable)((Compactdisk)in).getName().toLowerCase());
	   }
 
		// returns indivudual inventory value for a disk
	   public float getValue()
	   {
	   return(price * nstock);
	   }
 
 
 
 
 
}// end class

import java.util.*;

public class CdwArtist extends Compactdisk
{
 
 public String artist; // artist performing on cd
 public int restock; // restocking percentage

  
 // Artist constructor
  public CdwArtist()
 {
 artist = "";
 restock = .05
 }
 
 public CdwArtist(String in)
 {
 artist=in;
 }
 
 // get value
 public void setArtist(String in)
 {
 artist=in;
 }
 public void setRestock(float cdRestock)
 {
 restock = cdRestock;
 }
  
 // return value
 public String getArtist()
 {
 return (artist);
 }
	
 // returns indivudual inventory value for a disk
	   public float getValue()
	   {
	   return((price * nstock)* restock);
	   }	
	
} //End Class

public class Animal{
   int legs;
   bool tail;
   public Animal(int legs, bool tail){
         this.legs = legs;
         this.tail = tail;
   }
   public void noise(){
      System.out.println("GROWL!");
   }
}

public class Dog extends Animal{
   public void noise(){
      System.out.println("WOOF"!);
   }
}

 public String artist; // artist performing on cd
 public float restock; // restocking percentage
 
 
 // Artist constructor
  public CdwArtist()
 {
 artist = "";
 restock = .05;
 }
 
 public CdwArtist(String in)
 {
 artist=in;
 }
 
 // get value
 public void setArtist(String in)
 {
 artist=in;
 }
 public void setRestock(float cdRestock)
 {
 restock = cdRestock;
 }
 
 // return value
 public String getArtist()
 {
 return (artist);
 }
 
 // returns indivudual inventory value for a disk
	   public float getValue()
	   {
	   return((price * nstock)* restock);
	   }	
 
} //End Class