I'm getting a bad operand types for operator <. first String. second string.
I get want the error means, so I'm assuming that I can't use this operator to sort my array of objects. Is there some other way for me to sort this array out. I need to sort the array by the Artist name.
Here's my new code
line 86 is the error
I get want the error means, so I'm assuming that I can't use this operator to sort my array of objects. Is there some other way for me to sort this array out. I need to sort the array by the Artist name.
Here's my new code
Code:
public class Product
{
//DECLARE VARIABLES
private String number; //Item Number of product( used String as item
// numbers sometimes contain alphabet characters)
private String name; //Name of the product
private int units; //How many of the product are in stock
private double price; //How much one item costs
private double value; //How much the stock is worth
//CONSTRUCTOR
public Product( String productName, String itemNumber,
int instockUnits, double costPerUnit, double costOfStock )
{
name = productName;
number = itemNumber;
units = instockUnits;
price = costPerUnit;
value = 0.00;
}
//METHODS OF THE CLASS
//Set the item number
public void setNumber( String itemNumber )
{
number = itemNumber;
}
//End set item number
//Get item number
public String getNumber()
{
return number;
}
//End get item number
//Set name
public void setName( String productName )
{
name = productName;
}
//End set name
//Get name
public String getName()
{
return name;
}
//End get name
//set units
public void setUnits( int instockUnits )
{
units = instockUnits;
}
//end set units
//Get units
public int getUnits()
{
return units;
}
//End get units
//Set price
public void setPrice( double costPerUnit )
{
price = costPerUnit;
}
//End set price
//Get price
public double getPrice()
{
return price;
}
//End get price
//Set Value
public double value( double price, int units )
{
return value = price * units;
}
//end set value
//String output of Product
public String toString()
{
return "Product " + number + " Type " + name + ". Cost..." + price + ". Units..." + units + ". Value..." + (price * units);
}
}
Code:
public class CD extends Product
{
//Declare variable not inherited
private String artist; //name of band or artist
private final double restockFee = .05; //5% restocking fee
//Constructor
public CD( String productName, String itemNumber, int instockUnits, double costPerUnit, double costOfStock, String artistName )
{
super( productName, itemNumber, instockUnits, costPerUnit, costOfStock );
artist = artistName;
}
//METHODS NOT INHERITED
//Set artist name
public void setArtist( String artistName )
{
artist = artistName;
}
//End set artist name
//Get artist name
public String getArtist()
{
return artist;
}
//End get artist name
//calculate new price with restocking fee
public double price()
{
return ( super.getPrice() + ( super.getPrice() * restockFee ) );
}
//Set Value
public double value()
{
return ( price() * super.getUnits() );
}
//end set value
//String output of Product
public String toString()
{
return String.format( "%s %s %s\n%s...%.2f\n\n", "Artist", getArtist(), super.toString(), "Value with Restocking Fee...", ( price() * super.getUnits() ) );
}
}
Code:
import java.util.Scanner; //allows user input
import java.util.Arrays; //allows us to add to the array
import java.util.Comparator;
public class InventoryDisplay
{
//Main Method
public static void main( String args[] )
{
//Create a product
CD myCD = new CD( "0000", "Type", 0, 0.00, 0.00, "Band" );
//Create a Scanner
Scanner input = new Scanner( System.in );
double total = 0.00;
//Greeting
System.out.print( "Welcome to Inventory Control\n" );
System.out.print(
"This program displays inventory stock and value\n\n" );
//Get the length of the array
System.out.printf( "%s%s",
"Before we begin,",
"how many CDs do you want to inventory? " );
int count = input.nextInt();
System.out.printf( "%s%s", "Thank you.",
" Please fill in CD information.\n\n" );
//Create an array
CD inventory[] = new CD[ count ];
//Using inventory.length as a counter, loop input and output
for ( int counter = 0; counter < inventory.length; counter++ )
{
String theName = "CD"; //Product Type is already determined as CD, so no input required
myCD.setName( theName );
System.out.print( "What is the product number of the CD? ");
String theNumber = input.next();
myCD.setNumber( theNumber );
System.out.println();
System.out.print( "How many of this CD is in stock? ");
int theUnits = input.nextInt();
myCD.setUnits( theUnits );
System.out.println();
System.out.print( "How much does this CD cost? ");
double thePrice = input.nextDouble();
myCD.setPrice( thePrice );
System.out.println();
System.out.print( "Who is the artist of the CD? ");
String theArtist = input.next();
myCD.setArtist( theArtist );
System.out.println();
//Fills the array with the user input
inventory[ counter ] = new CD( theName, theNumber, theUnits, thePrice, myCD.value( myCD.getPrice(), myCD.getUnits() ), theArtist );
//Totals the value of all the items
/*This snippet of code taken Dream.In.Code
http://www.dreamincode.net/forums/topic/251302-loop-not-incrementing-my-variable/page__p__1460738__fromsearch__1&#entry1460738
ChrisKellyDev
Retrieved October 15th 2011*/
total += inventory[counter].value();
}
System.out.println( "The restocking fee is 5%\n" );
for ( int a = 0; a <= inventory.length; a++ )
{
for ( int b = 1; b <= inventory.length; b++ )
{
if ( inventory[a].getArtist() < inventory[b].getArtist() )
{
CD swapCD = new CD( "0000", "Type", 0, 0.00, 0.00, "Band" );
swapCD = inventory[a];
inventory[a] = inventory[b];
inventory[b] = swapCD;
}
}
}
System.out.println(Arrays.toString( inventory ) );
System.out.printf( "The total value of the inventory is %.2f\n\n", total );
//Closing
System.out.print( "Thank you for using Inventory Control" );
}
}
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