Java Lab 3

Java Lab 3 Classes and methods Due Nov. 14

Written design document

Include in the document:

Dog class

constructor(s) and their arguments
class methods(s) including each method's purpose, return type (if any ) and parameters
private instance variables

driver class (UseDog)

basic set up
a test plan which shows that you are testing all methods in the Dog (both constructors) as well as all accessors and modifiers for three Dog objects

Class program:

Allows creation of Dog object by specifiying the sound a dog makes as well as its breed
Allows creation of a default dog with supplied breed and sound
Has methods to return the Dog's breed , age and bark sound.
Allows behaviors bark, barkLoud and BarkSoft. Each of these displays the dog's sound in the output window in different ways. bark shows the sound as it was specified originally, barkLoud displays it in all capitals and barkSoft displays it in all lowercase letters.

Note that the String class has two interesting methods... stringObject.toUpperCase() which returns an all uppercase version of the original String object without changing it; and stringObject.toLowerCase()

Supply a method that sets the dog's age; one that returns the dog age; and one that returns the dog age in human years (7 times dog years.)

Sample usage:

    Dog myDog = new Dog ("Lab","Woof");
    System.out.println(myDog.barkLoud());
    System.out.println(myDog.barkSoft());
    myDog.setAge(5);
    System.out.print(myDog.giveBreed()+" says " + myDog.givBark());
    System.out.println(" and in human years would be "+myDog.giveAge7());

This would print :
WOOF
woof
Lab says Woof and in human years would be 35.

Program to use Dog class at minimum must

create 3 dog objects
each dog has a different sound -- make them up (e.g. Yipyip, Bowwow, etc.)
each dog is a different breed (e.g. beagle, pit bull and terrier)
have them talk to each other in different ways (loud, soft, regular)
have them tell their ages in human years.

Upload a word document containing

Design document as described above
Dog.java code
UseDog.Java code
.Printouts showing at least three runs testing all methods with reasonable data

Grading Form

Java Lab3 Dog class	Possible	Actual
Design completed	10
Dog class
class constructor(s) described	10
Prologue indicating programmer, purpose, class and date, all methods and variables documented as to purpose	5
private instance variable described	5
UseDog (Driver Program)
Prologue indicating programmer, purpose, class and date	5
sufficient documentation that code works according to a test plan	5
output is neat	10
compiles correctly and all answers correct	45
all variables identified in code as to purpose and neat meaningful code and comments	5
GRADE:	100