Help with programming in Java?
Modify the dog class to include a new instance variable weight (double) and the Cat class to include a new instance variable coatColor (string). Add the corresponding accessors and mutators for the new instance variables. Modify excercise 4 by inputting additional information appropriate for the type. First you input name and type as before. If the type is cat, than input its coat color. If the type is dog thn input its weight. After the input is complete output the name, type and coat color for the cats and the name, type and weight for the dogs.

Excercis 4
Write a program that creates an Array List of pets. An item in the list either a Dog or a cat. For each pet, enter its name and type ('c' for cat and "d' for dog). Stop the input when the string STOP is enterend for the name. After input is complete, output the name and type for each pet in the list.

List of pets

fluffy cat Abyssinian
garfield cat Somali
tailand cat Siamese

Rover dog german sheppard
Sarah dog collie
Rex dog Pitbull


Please advice me on how I can create the program on a step by step basis or the solution would be even better. i am using Netbeans IDE.