Lab 19

Create classes CatRecord, DogRecord and BirdRecord that inherit from (extend) the

PetRecord class located on Canvas.

Add an integer variable numFeathers to BirdRecord, and a Boolean variable

hasLongHair to CatRecord and DogRecord. Create appropriate setter and getter

methods for each.

Also, create constructors that can set all of the values for a cat, dog or bird by

setting the values specific to that animal and also using super to call the constructor

for PetRecord.

Lab 20

Modify the PetRecord class by adding a print() method to it that prints all of the

information on a given pet (that is common to all types of pets).

Override this print function in CatRecord, DogRecord, and BirdRecord to print all of

the information for a cat, dog, or bird, including the information specific to that

species your new print function should use the super keyword to call the

PetRecord print function, then print the additional information.

PetRecord:

PetRecord.java /** Class for basic pet records: name, age, and weight. */ public class PetRecord { private String name; private int age;//in years private double weight;//in pounds

public String toString( ) { return ("Name: " + name + " Age: " + age + " years" + " Weight: " + weight + " pounds"); }

public PetRecord(String initialName, int initialAge, double initialWeight) { name = initialName; if ((initialAge < 0) || (initialWeight < 0)) { System.out.println("Error: Negative age or weight."); System.exit(0); } else { age = initialAge; weight = initialWeight; } }

public void set(String newName, int newAge, double newWeight) { name = newName; if ((newAge < 0) || (newWeight < 0)) { System.out.println("Error: Negative age or weight."); System.exit(0); } else { age = newAge; weight = newWeight; } }

public PetRecord(String initialName) { name = initialName; age = 0; weight = 0; }

public void setName(String newName) { name = newName; }

public PetRecord(int initialAge) { name = "No name yet."; weight = 0; if (initialAge < 0) { System.out.println("Error: Negative age."); System.exit(0); } else age = initialAge; }

public void setAge(int newAge) { if (newAge < 0) { System.out.println("Error: Negative age."); System.exit(0); } else age = newAge; }

public PetRecord(double initialWeight) { name = "No name yet"; age = 0; if (initialWeight < 0) { System.out.println("Error: Negative weight."); System.exit(0); } else weight = initialWeight; }

public void setWeight(double newWeight) { if (newWeight < 0) { System.out.println("Error: Negative weight."); System.exit(0); } else weight = newWeight; }

public PetRecord( ) { name = "No name yet."; age = 0; weight = 0; }

public String getName( ) { return name; }

public int getAge( ) { return age; }

public double getWeight( ) { return weight; } }