1. Abstract Data Types and Java Classes
B.Ramamurthy
11/14/2018
B.Ramamurthy

2. Introduction
Last class we developed a Rectangle interface and an implementation for it.
We will examine some more standard methods to be added to a class.
Also look into creating packages.
Your assignment: Study the Throttle class defined in your text pages 36-56, esp. p.45,46 (design and code)
11/14/2018
B.Ramamurthy

3. Topics of Discussion
Throttle class : specification, implementation and testing.
Packages
Location class
Specialty: equals method and clone method
Examples
11/14/2018
B.Ramamurthy

4. Throttle Throttle int top; int position; //constructor
public Throttle (int size);
// accessor method
public double getFlow();
//predicate method
public boolean isOn();
// service methods
public void shift(int amount);
public void shutOff();
11/14/2018
B.Ramamurthy

5. Location (class)
Location class is illustrates two important features that you should implement in your classes; equals method and clone method.
11/14/2018
B.Ramamurthy

6. Location Location double x; double y;
Location (double xInit, double yInit);
Object clone();
static double distance (Location p1, Location p2);
boolean equals(Object obj);
double getX();
double getY();
static Location midPoint(Location P1, Location p2);
void rotate90();
void shift(double xAmt, double yAmt);
String toString();
11/14/2018
B.Ramamurthy