diff --git a/Lectures/OLD_SpecViaUMLWithJava/SpecViaUML.pdf b/Lectures/OLD_SpecViaUMLWithJava/SpecViaUML.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..12e4432309b5d737a6e58509bb5de1359b5880e8
Binary files /dev/null and b/Lectures/OLD_SpecViaUMLWithJava/SpecViaUML.pdf differ
diff --git a/Lectures/OLD_SpecViaUMLWithJava/SpecViaUML.tex b/Lectures/OLD_SpecViaUMLWithJava/SpecViaUML.tex
new file mode 100755
index 0000000000000000000000000000000000000000..84416f2e4af03a74f0b065977361e8147bc7b6fe
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/SpecViaUML.tex
@@ -0,0 +1,480 @@
+%\documentclass[t,12pt,numbers,fleqn,handout]{beamer}
+\documentclass[t,12pt,numbers,fleqn]{beamer}
+
+\usepackage{pgfpages}
+\usepackage{hyperref}
+\hypersetup{colorlinks=true,
+ linkcolor=blue,
+ citecolor=blue,
+ filecolor=blue,
+ urlcolor=blue,
+ unicode=false}
+\urlstyle{same}
+
+\usepackage{booktabs}
+\usepackage{multirow}
+\usepackage{listings}
+
+\useoutertheme{split} %so the footline can be seen, without needing pgfpages
+
+% \pgfpagesuselayout{resize to}[letterpaper,border
+% shrink=5mm,landscape] %if this is uncommented, the hyperref links do not work
+
+\mode<presentation>{}
+
+\input{../def-beamer}
+\Draftfalse
+
+\newcommand{\topicTitle}{26 Specification Via UML (Ch.\ 5 and others)}
+\ifDraft
+\newcommand{\topic}{\topicTitle~DRAFT}
+\else
+\newcommand{\topic}{\topicTitle}
+\fi
+
+\input{../titlepage}
+
+\begin{document}
+
+\input{../footline}
+
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{\topic}
+
+\begin{itemize}
+\item Administrative details
+\item Best specification technique?
+\item Designing spec of modules
+\item Interfaces in UML
+\bi
+\item Measurable interface
+\item Multiple inheritance example
+\ei
+\item Generic classes in UML
+\item Use cases with UML
+\item Sequence diagrams in UML
+\end{itemize}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Administrative Details}
+
+\ifDraft
+TBD
+\else
+{
+\begin{itemize}
+
+\item \structure{Who has skimmed the homework problem?}
+\item Some delay likely in grading A2
+\item A3 deadlines
+\begin{itemize}
+\item Part 1 - Specification: due 11:59 pm \structure{Mar 11}
+\item Part 2 - Code: due 11:59 pm Mar 20
+\end{itemize}
+
+\item A4
+\bi
+\item Your own design and specification
+\item Due April 3 at 11:59 pm
+\ei
+
+\item Sources of slides
+\bi
+\item DataSet example based on Cay Horstmann, Big Java, John Wiley \& Sons, 2002
+\item Other UML examples from Stevens, Using UML, 2006
+\item Ghezzi et al 2003
+\ei
+\end{itemize}
+}
+\fi
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Best?}
+
+\bi
+\item \structure{What is the best software development tool?}
+\item \structure{What is the most important software design principle?}
+\item \structure{What is the best specification technique?}
+\ei
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Best Continued}
+
+\bi
+\item \structure{What is the best programming language?}
+\item \structure{What is the best engineering/scientific discipline?}
+\item \structure{What is the best movie? video game?}
+\item \structure{What is the best genre of music?}
+\item \structure{What is the best food?}
+\ei
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Deciding the Best Strategy For a Given Problem}
+
+\bi
+\item What is the approach at your company?
+\item Likely maintenance, so many decisions have likely been made.
+\item What tools/techniques/programming language etc.\ do you know?
+\item What can you afford in terms of cost/time?
+\item What tool is appropriate for the task at hand?
+\item What are the requirements?
+\bi
+\item Verifiability?
+\item Maintainability?
+\item Reusability?
+\item etc.
+\ei
+\item etc.
+\ei
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{UML Diagram of Measurable Interface}
+
+\includegraphics[scale=0.65]{../Figures/UMLDataSetMeasurableInterface.pdf}
+
+\begin{itemize}
+\item Realization arrow should have an outline triangle
+\item UML diagram can also show interface method names
+\item Realization arrow is like weak generalization (inheritance)
+\end{itemize}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{DataSet Without Interface}
+
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/DataSet.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{PointT}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/PointT.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{DataSet for Points}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/DataSetPoint.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Bank Account Class}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/BankAccount.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{DataSet for Bank Accounts}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/DataSetBankAccount.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Measurable Interface}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/Measurable.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Data Set with Measurable Interface}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/DataSetInterface.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{PointT with Measurable Interface}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/PointTInterface.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Bank Account with Measurable Interface}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/BankAccountInterface.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Using DataSet}
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/DataSetTest.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Interface Strategy}
+\begin{itemize}
+\item There are limitations to the Measurable interface
+\begin{itemize}
+\item You can only add a Measurable interface to classes that you control
+\item You can measure an object in only one way
+\end{itemize}
+\item Move responsibility for measuring outside of objects themselves
+\item Have another object carry out the comparison
+\item Introduce a Measurer interface
+\end{itemize}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{UML Diagram of Measurer Interface}
+
+\includegraphics[scale=0.55]{../Figures/UMLDataSetMeasurerInterface.pdf}
+
+\bi
+\item Rectangle is part of Class java.awt
+\item You cannot change it
+\ei
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Measurer Interface}
+
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+\noindent \lstinputlisting{./src/Measurer.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Data Set with New Strategy}
+
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+
+\noindent \lstinputlisting{./src/DataSetStrategy.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Rectangle Measurer}
+
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+
+\noindent \lstinputlisting{./src/RectangleMeasurer.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[allowframebreaks]
+\frametitle{Using Rectangle Measurer}
+
+\lstset{language=java,breaklines=true,showspaces=false,showstringspaces=false,breakatwhitespace=true}
+
+\noindent \lstinputlisting{./src/DataSetStrategyTest.java}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[fragile]
+\frametitle{ {\tt Comparable} Versus {\tt Comparator}}
+
+\begin{itemize}
+\item Comparable similar UML diagram to Measurable
+\item Comparator similar UML diagram to Measurer
+\end{itemize}
+
+\begin{lstlisting}
+public interface Comparable<T>
+{
+ int compareTo(T obj);
+}
+\end{lstlisting}
+
+\begin{lstlisting}
+public interface Comparator<T>
+{
+ public int compare(T obj1, T obj2);
+}
+\end{lstlisting}
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Interface Versus Abstract}
+\begin{itemize}
+\item \structure{What is the difference between an interface and an abstract class?}
+\end{itemize}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+%\frametitle{Differences Between Interface and Abstract}
+\begin{itemize}
+\item Interface
+\bi
+\item Methods are implicitly abstract and public
+\item Methods can have default implementation ( JDK 8)
+\item Cannot have constructors
+\item Variables are final
+\item Can only extend interfaces
+\item Classes can extend multiple instances
+\item Appropriate for unrelated classes
+\ei
+\item Abstract class
+\bi
+\item At least one method is declared as abstract
+\item Some methods can implement a default behaviour
+\item Cannot instantiate them, but can have constructors
+\item Variables are not necessarily final
+\item Can extend other class
+\item Can implement multiple interfaces
+\item Classes can extend only one abstract class
+\item Sharing code between closely related classes
+\ei
+\end{itemize}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{UML Diagram for Generic Classes}
+
+\includegraphics[scale=0.55]{../Figures/UML_class_diagram_template.png}
+
+\href{https://coderanch.com/t/626984/a/5041/UML_class_diagram_template.png}{UML
+ Class Diagram Template}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+%\frametitle{Use Cases}
+
+\includegraphics[scale=0.65]{../Figures/useCaseDiagram.jpg}
+
+\href{http://www.agilemodeling.com/artifacts/useCaseDiagram.htm}{UML
+ 2 Use Case Diagrams: An Agile Introduction}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Use Cases}
+
+\bi
+\item Often used for capturing requirements
+\item From user's (actor's) viewpoint
+\bi
+\item Person
+\item Other system
+\item Hardware
+\item etc. (anything external
+\ei
+\item Each circle is a use case
+\item Lines represent possible interactions
+\item An actor represents a role, individuals can take on different roles
+\ei
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[plain]
+%\frametitle{Use Cases}
+
+\includegraphics[scale=0.45]{../Figures/buying_3.jpg}
+
+\href{http://people.cs.ksu.edu/~reshma/buying_3.JPG}{Sequence Diagram For
+ On-Line Shopping}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Sequence Diagram Question}
+
+\bi
+\item \structure{Is a sequence diagram an operational or a descriptive
+ specification?}
+\item \structure{If objects exchange a message, should there be an association
+ between their classes?}
+\ei
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{Sequence Diagrams}
+
+\bi
+\item Represents a specific use case scenario
+\item How objects interact by exchanging messages
+\item Time progresses in the vertical direction
+\item The vertically oriented boxes show the object's lifeline
+\ei
+
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\end{document}
+
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/BankAccount.java b/Lectures/OLD_SpecViaUMLWithJava/src/BankAccount.java
new file mode 100644
index 0000000000000000000000000000000000000000..9c9b10e6e696bd925d7ae028114f65e8e5ab708f
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/BankAccount.java
@@ -0,0 +1,13 @@
+public class BankAccount
+{
+ private double balance;
+
+ public BankAccount()
+ { balance = 0;}
+ public void deposit(double amount)
+ { balance = balance + amount;}
+ public void withdraw(double amount)
+ { balance = balance - amount;}
+ public double getBalance()
+ { return balance;}
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/BankAccountInterface.java b/Lectures/OLD_SpecViaUMLWithJava/src/BankAccountInterface.java
new file mode 100644
index 0000000000000000000000000000000000000000..4567091b968c6e34d9a3975fa114b6f0d51a7a64
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/BankAccountInterface.java
@@ -0,0 +1,12 @@
+public class BankAccountInterface implements Measurable
+{ private double balance;
+ public BankAccountInterface()
+ { balance = 0;
+ }
+ //..
+ public double getBalance()
+ { return balance;
+ }
+ public double getMeasure()
+ { return balance;}
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/DataSet.java b/Lectures/OLD_SpecViaUMLWithJava/src/DataSet.java
new file mode 100644
index 0000000000000000000000000000000000000000..2aea56d528a0da5b76dc4e5f088bdd71b85174a9
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/DataSet.java
@@ -0,0 +1,27 @@
+public class DataSet
+{
+ private double sum;
+ private double maximum;
+ private int count;
+
+ public DataSet()
+ {
+ sum = 0;
+ count = 0;
+ maximum = 0;
+ }
+ public void add(double x)
+ {
+ sum = sum + x;
+ if (count == 0 || maximum < x) maximum = x;
+ count++;
+ }
+ public double getAverage()
+ {
+ if (count == 0) return 0;
+ else return sum/count;
+ }
+ public double getMaximum()
+ { return maximum;
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/DataSetBankAccount.java b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetBankAccount.java
new file mode 100644
index 0000000000000000000000000000000000000000..2b5e7ed377b59c260282bd6dd0e5a987d47bc297
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetBankAccount.java
@@ -0,0 +1,26 @@
+public class DataSetBankAccount
+{
+ private double sum;
+ private BankAccount maximum;
+ private int count;
+
+ public DataSetBankAccount()
+ {
+ sum = 0;
+ count = 0;
+ maximum = null;
+ }
+ public void add(BankAccount x)
+ {
+ sum = sum + x.getBalance();
+ if (count == 0 || maximum.getBalance() < x.getBalance()) maximum = x;
+ count++;
+ }
+ public double getAverage()
+ { if (count == 0) return 0;
+ else return sum/count;
+ }
+ public BankAccount getMaximum()
+ { return maximum;
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/DataSetInterface.java b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetInterface.java
new file mode 100644
index 0000000000000000000000000000000000000000..7f0a3895fd34f93d326ebbb557d9a90bf610e419
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetInterface.java
@@ -0,0 +1,26 @@
+public class DataSetInterface
+{
+ private double sum;
+ private Measurable* maximum;
+ private int count;
+
+ public DataSetInterface()
+ {
+ sum = 0;
+ count = 0;
+ maximum = null;
+ }
+ public void add(Measurable x)
+ {
+ sum = sum + x.getMeasure();
+ if (count == 0 || maximum.getMeasure() < x.getMeasure()) maximum = x;
+ count++;
+ }
+ public double getAverage()
+ { if (count == 0) return 0;
+ else return sum/count;
+ }
+ public Measurable getMaximum()
+ { return maximum;
+ }
+}
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/DataSetPoint.java b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetPoint.java
new file mode 100644
index 0000000000000000000000000000000000000000..fdfb98bd7975340f1c568f15d31ef50196d85dd4
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetPoint.java
@@ -0,0 +1,25 @@
+public class DataSetPoint
+{
+ private double sum;
+ private PointT maximum;
+ private int count;
+ public DataSetPoint()
+ { sum = 0;
+ count = 0;
+ maximum = null;
+ }
+ public void add(PointT x)
+ {
+ sum = sum + x.distToOrigin();
+ if (count == 0 || maximum.distToOrigin() < x.distToOrigin()) maximum = x;
+ count++;
+ }
+ public double getAverage()
+ { if (count == 0) return 0;
+ else return sum/count;
+ }
+ public PointT getMaximum()
+ {
+ return maximum;
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/DataSetStrategy.java b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetStrategy.java
new file mode 100644
index 0000000000000000000000000000000000000000..bbddd8196b1c9f5fba398c15fde86c4adc142b2e
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetStrategy.java
@@ -0,0 +1,25 @@
+public class DataSetStrategy
+{ private double sum;
+ private Object maximum;
+ private int count;
+ private Measurer measurer;
+ public DataSetStrategy(Measurer aMeasurer)
+ { sum = 0;
+ count = 0;
+ maximum = null;
+ measurer = aMeasurer;
+ }
+ public void add(Object x)
+ {
+ sum = sum + measurer.measure(x);
+ if (count == 0 || measurer.measure(maximum) < measurer.measure(x)) maximum = x;
+ count++;
+ }
+ public double getAverage()
+ { if (count == 0) return 0;
+ else return sum/count;
+ }
+ public Object getMaximum()
+ { return maximum;
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/DataSetStrategyTest.java b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetStrategyTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..2febfa5d261086af5288a4e67f776ddf32c57a36
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetStrategyTest.java
@@ -0,0 +1,23 @@
+import java.awt.Rectangle;
+public class DataSetStrategyTest
+{
+ public static void main(String[] args)
+ {
+ class RectangleMeasurer implements Measurer
+ {
+ public double measure(Object anObject)
+ {
+ Rectangle aRectangle = (Rectangle) anObject;
+ double area = aRectangle.getWidth() * aRectangle.getHeight();
+ return area;
+ }
+ }
+ Measurer m = new RectangleMeasurer();
+ DataSetStrategy data = new DataSetStrategy(m);
+ data.add(new Rectangle(5, 10, 20, 30));
+ data.add(new Rectangle(10, 20, 30, 40));
+ System.out.println("Average area = " + data.getAverage());
+ Rectangle max = (Rectangle) data.getMaximum();
+ System.out.println("Maximum area = " + m.measure(max));
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/DataSetTest.java b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..2963e8dd0cd02d1f9873ceffc0c473b54f98d328
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/DataSetTest.java
@@ -0,0 +1,19 @@
+public class DataSetTest
+{ public static void main(String[] args)
+ { DataSetInterface bankData = new DataSetInterface();
+ bankData.add(new BankAccountInterface());
+ BankAccountInterface b = new BankAccountInterface();
+ b.deposit(134.56);
+ bankData.add(b);
+ System.out.println("Average balance = " + bankData.getAverage());
+ Measurable max = bankData.getMaximum();
+ System.out.println("Highest balance = " + max.getMeasure());
+ DataSetInterface pointData = new DataSetInterface();
+ pointData.add(new PointTInterface(1.0, 1.0));
+ pointData.add(new PointTInterface(2.0, 2.0));
+ pointData.add(new PointTInterface(3.0, 3.0));
+ System.out.println("Average distance to origin = " + pointData.getAverage());
+ max = pointData.getMaximum();
+ System.out.println("Greatest distance to origin = " + max.getMeasure());
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/Measurable.java b/Lectures/OLD_SpecViaUMLWithJava/src/Measurable.java
new file mode 100644
index 0000000000000000000000000000000000000000..fb4b5d41b04585a08b5452c770dbd6de034b5e63
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/Measurable.java
@@ -0,0 +1,4 @@
+public interface Measurable
+{
+ double getMeasure();
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/Measurer.java b/Lectures/OLD_SpecViaUMLWithJava/src/Measurer.java
new file mode 100644
index 0000000000000000000000000000000000000000..720a9e14bfbdd10eced0f123935a4e94cffb114e
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/Measurer.java
@@ -0,0 +1,4 @@
+public interface Measurer
+{
+ double measure(Object anObject);
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/PointT.java b/Lectures/OLD_SpecViaUMLWithJava/src/PointT.java
new file mode 100644
index 0000000000000000000000000000000000000000..d1261c564b675207d1ab3ebf3efaca25ebeba800
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/PointT.java
@@ -0,0 +1,12 @@
+import static java.lang.Math.*;
+public class PointT {
+ private double xc;
+ private double yc;
+ public PointT(double x, double y) {
+ xc = x;
+ yc = y;}
+ // ..
+ public double distToOrigin() {
+ return sqrt(pow(xc,2.0) + pow(yc,2.0));
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/PointTInterface.java b/Lectures/OLD_SpecViaUMLWithJava/src/PointTInterface.java
new file mode 100644
index 0000000000000000000000000000000000000000..af637f83f4b242e51b62167ad198891101b5fac5
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/PointTInterface.java
@@ -0,0 +1,17 @@
+import static java.lang.Math.*;
+public class PointTInterface implements Measurable
+{
+ private double xc;
+ private double yc;
+ public PointTInterface(double x, double y) {
+ xc = x;
+ yc = y;
+ }
+ //..
+ public double distToOrigin() {
+ return sqrt(pow(xc,2.0) + pow(yc,2.0));
+ }
+ public double getMeasure(){
+ return distToOrigin();
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/RectangleMeasurer.java b/Lectures/OLD_SpecViaUMLWithJava/src/RectangleMeasurer.java
new file mode 100644
index 0000000000000000000000000000000000000000..c6e4e5b2748094712abf028b8f9f71bb58f56d28
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/RectangleMeasurer.java
@@ -0,0 +1,10 @@
+import java.awt.Rectangle;
+class RectangleMeasurer implements Measurer
+{
+ public double measure(Object anObject)
+ {
+ Rectangle aRectangle = (Rectangle) anObject;
+ double area = aRectangle.getWidth() * aRectangle.getHeight();
+ return area;
+ }
+}
\ No newline at end of file
diff --git a/Lectures/OLD_SpecViaUMLWithJava/src/TestArraysSortComparable.java b/Lectures/OLD_SpecViaUMLWithJava/src/TestArraysSortComparable.java
new file mode 100644
index 0000000000000000000000000000000000000000..9b3bce3fa5d7439814f19253f6fba5c80a97526f
--- /dev/null
+++ b/Lectures/OLD_SpecViaUMLWithJava/src/TestArraysSortComparable.java
@@ -0,0 +1,26 @@
+import java.util.Arrays;
+public class TestArraysSortComparable
+{ public static void main(String [] args)
+ { PointT[] p = new PointT[6];
+ p[0] = new PointT(0.0, 0.0);
+ p[1] = new PointT(10.0, 30.0);
+ p[2] = new PointT(4.0, 15.0);
+ p[3] = new PointT(41.0, 7.0);
+ p[4] = new PointT(9.0, 70.0);
+ System.out.println("p[0] compared to p[1]: " + p[0].compareTo(p[1]));
+ PrintPath(p, 6);
+ Arrays.sort(p);
+ PrintPath(p, 6);
+ }
+ private static void PrintPath(PointT[] pl, int n)
+ { int i;
+ PointT p;
+ System.out.println();
+ System.out.println("i" + "\t" + "xcoord" + "\t" + "ycoord");
+ for (i = 0; i < n; i++)
+ { p = pl[i];
+ System.out.println(i + "\t" + p.xcoord() + "\t" + p.ycoord());
+ }
+ System.out.println();
+ }
+}
\ No newline at end of file