Java

OOP GUIDE / WORK

SHOESTORE & SHOE CLASSES SOLUTIONS

TASK – PART 1 – SETUP

No solutions required.

TASK – PART 2 – IMPLEMENT COMPARABLE

Below are my new versions of the Shoe and ShoeStore classes.

public class Shoe implements Comparable

{

private String brand;

private int size;

private String colour;

//Creates a random shoe

public Shoe()

{

String[] brands = {"Nike", "Adidas", "Puma", "Reebok", "New Balance"};

String[] colours = {"Blue", "Pink", "Yellow", "Teal", "White", "Black"};

brand = brands[(int)(Math.random() * brands.length)];

colour = colours[(int)(Math.random() * colours.length)];

size = (int)(Math.random()*8) + 6; //6-13

}

public String toString()

{

return brand + ", " + colour + ", Size: " + size;

}

public String getBrand()

{

return brand;

}

public int getSize()

{

return size;

}

public String getColour()

{

return colour;

}

@Override

public int compareTo(Object o)

{

Shoe other = (Shoe)o;

if (!this.brand.equals(other.brand))

return this.brand.compareTo(other.brand);

else //same brands, so sort by shoe size

{

return ((Integer)this.size).compareTo(other.size); //clever

}

}

}

import java.util.Arrays;

public class ShoeStore

{

private Shoe[] inv;

public ShoeStore(int amount)

{

inv = new Shoe[amount];

for (int i=0; i<inv.length; i++)

{

inv[i] = new Shoe();

}

Arrays.sort(inv); //sort using compareTo

}

public void displayInventory()

{

for (int i=0; i<inv.length; i++)

{

System.out.println(inv[i]);

}

}

}

TASK – PART 3 – TESTING

No solutions required.