CSE564 Lecture 15

Software Design
Review II
(202110)

Transcript

1. jgs CSE 564 Software Design Lecture 15: Midterm Review Dr. Javier Gonzalez-Sanchez javiergs@asu.edu javiergs.engineering.asu.edu | javiergs.com PERALTA 230U Office Hours: By appointment
2. jgs Previously …
3. jgs 564 00010000 Scenario CompanionHelper CompanionTroll Companion CompanionTrollHelper
4. jgs 564 00010000 Decorator
5. jgs 564 00010000 Main
6. jgs 564 00010000 Companion public interface Companion { public void doSomething(); }
7. jgs 564 00010000 BasicCompanion public class BasicCompanion implements Companion { @Override public void doSomething() { System.out.print("Hello Student, "); } }
8. jgs 564 00010000 CompanionDecorator public class CompanionDecorator implements Companion { protected Companion c; public void add(Companion c){ this.c = c; } @Override public void doSomething() { this.c.doSomething(); } }
9. jgs 564 00010000 HelperCompanion public class HelperCompanion extends CompanionDecorator { @Override public void doSomething(){ super.doSomething(); System.out.print(" I am here to help you. "); } }
10. jgs 564 00010000 AffectiveCompanion public class AffectiveCompanion extends CompanionDecorator { @Override public void doSomething(){ super.doSomething(); System.out.print(" I am here to cheer you."); } }
11. jgs Test Yourselves GUI Application
12. jgs 564 00010000 Decorator
13. jgs 564 00010000 GUI
14. jgs 564 00010000 Main import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.*; public class Main extends JFrame implements ActionListener { CompanionPanel companionPanel = new CompanionPanel (); JButton b1 = new JButton("standard"); JButton b2 = new JButton("help"); JButton b3 = new JButton("affect"); JButton b4 = new JButton("helper+affect"); public Main() { setLayout(new BorderLayout(3,2)); add (companionPanel, BorderLayout.CENTER); JPanel control = new JPanel(new GridLayout(1,4)); control.add (b1); b1.addActionListener(this); control.add (b2); b2.addActionListener(this); control.add (b3); b3.addActionListener(this); control.add (b4); b4.addActionListener(this); add (control, BorderLayout.SOUTH); }
15. jgs @Override public void actionPerformed(ActionEvent e) { if (e.getSource()==b1) { BasicCompanion basic = new BasicCompanion(); panel.setCompanion(basic); panel.showYourself(); } else if (e.getSource()==b2) { BasicCompanion basic = new BasicCompanion(); HelperCompanion helper = new HelperCompanion(); helper.add(basic); panel.setCompanion(helper); panel.showYourself(); } else if (e.getSource()==b3) { BasicCompanion basic = new BasicCompanion(); AffectiveCompanion h = new AffectiveCompanion(); h.add(basic); panel.setCompanion(h); panel.showYourself(); } else if (e.getSource()==b4) { HelperCompanion helper2 = new HelperCompanion(); AffectiveCompanion affective = new AffectiveCompanion(); BasicCompanion basic2 = new BasicCompanion(); helper2.add(affective); affective.add(basic2); panel.setCompanion(helper2);panel.showYourself(); } } public static void main(String[] args) { JFrame main = new Main(); main.setSize(500,500); main.setVisible(true); main.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } }
16. jgs 564 00010000 CompanionPanel import java.awt.GridLayout; import javax.swing.JLayeredPane; public class CompanionPanel extends JLayeredPane{ public Companion brain; public void setCompanion(Companion x) { brain = x; } public void showYourself() { removeAll(); setLayout(new GridLayout(1,1)); brain.doSomething(this); revalidate(); } }
17. jgs 564 00010000 Companion import javax.swing.JComponent; public interface Companion { public void doSomething(JComponent panel); }
18. jgs 564 00010000 BasicCompanion import javax.swing.ImageIcon; import javax.swing.JComponent; import javax.swing.JLabel; public class BasicCompanion implements Companion { @Override public void doSomething(JComponent panel) { ImageIcon face = new ImageIcon("src/face.png"); JLabel label = new JLabel(); label.setIcon(face); label.setHorizontalTextPosition(JLabel.CENTER); label.setVerticalTextPosition(JLabel.BOTTOM); label.setText("Hello Student, "); panel.add(label); } }
19. jgs 564 00010000 CompanionDecorator import javax.swing.JComponent; public class CompanionDecorator implements Companion { protected Companion c; public void add(Companion c){ this.c=c; } @Override public void doSomething(JComponent panel) { this.c.doSomething(panel); } }
20. jgs 564 00010000 AffectiveCompanion import javax.swing.ImageIcon; import javax.swing.JComponent; import javax.swing.JLabel; public class AffectiveCompanion extends CompanionDecorator { @Override public void doSomething(JComponent panel){ super.doSomething(panel); ImageIcon face = new ImageIcon("src/cheer.png"); JLabel label = new JLabel(); label.setIcon(face); label.setHorizontalTextPosition(JLabel.CENTER); label.setVerticalTextPosition(JLabel.BOTTOM); label.setText("I am here to cheer you."); panel.add(label); } }
21. jgs 564 00010000 HelperCompanion import javax.swing.ImageIcon; import javax.swing.JComponent; import javax.swing.JLabel; public class HelperCompanion extends CompanionDecorator { @Override public void doSomething(JComponent panel){ super.doSomething(panel); ImageIcon face = new ImageIcon("src/bubble.png"); JLabel label = new JLabel(); label.setIcon(face); label.setHorizontalTextPosition(JLabel.CENTER); label.setVerticalTextPosition(JLabel.BOTTOM); label.setText("I am here to help you."); panel.add(label); } }
22. jgs Midterm Review GUI Application
23. jgs The following slides shows some examples related to some topics This is NOT a comprehensive list of topics Topics in the exam can be found Weeks 1 to 9 (Lectures 1 to 16)
24. jgs 564 00010000 Topics 1. Program Development by Stepwise Refinement, N. Wirth. 1971 2. On the Criteria To Be Used in Decomposing Systems into Modules, D.L. Parnas. 1972 3. A Laboratory For Teaching Object-Oriented Thinking, K. Beck. 1989 4. Programming in the Large vs Programming in the Small, F. DeRemer et al. 1975 5. Design Patterns: Abstraction and Reuse of Object-Oriented Design, E. Gamma et al. 1993
25. jgs 564 00010000 1. Stepwise Refinement • Niklaus Wirth. § Modularity § Function § Function-driven development § Decomposition § What criteria to use in dividing the system into modules? § Task § Steps § Quality attributes § Software Design is …
26. jgs 564 00010000 2. Decomposing Systems into Modules § Module § What criteria to use in dividing the system into modules? § Information Hiding § Data Structure § What is the difference of Function vs Module? § What is the difference of Task vs Responsibility? § Software Design is …
27. jgs 564 00010000 3. Programming in the large § High-cohesion and loose-coupling § Software Design is … § Programming versus Structuring § Development: Many small programs(modules) written by different people. § Architecture: Structuring a large collection of modules to form a "system" § Composition § Decomposition § Accessibility (public, private) § Hierarchy
28. jgs 564 00010000 4. Teaching Object-Oriented Thinking § Designs as an abstract level as having processes, data flows, and data stores, regardless of implementation language or operating environment. § Procedure, Function Method, Module, Unit, System § Class, Object § Task, Responsibility, Collaborator § Encapsulation / Accessibility § Hierarchical Relationships § Composition / Decomposition § Levels § Linking
29. jgs 564 00010000 4. Teaching Object-Oriented Thinking Association Directed Association Reflexive Association Multiplicity Aggregation Composition Generalization Realization
30. jgs 564 00010000 5. Design Patterns § Solutions to software design problems you find again and again in real-world application development. § Reusable designs and interactions between objects. § Behavior, Creation, Structure
31. jgs 564 00010000 5. Design Patterns
32. jgs 564 00010000 From the Assignments § Programming with Java § Clean Code (basics) § GUI in Java (Swing / AWT) § Patterns in Java Libraries / Frameworks
33. jgs Test Yourselves Connecting all
34. jgs 564 00010000 Assignment 03
35. jgs 564 00010000 Assignment 03 - UI Main JFrame *Listener PlotPanel JButton Run
36. jgs 564 00010000 Assignment 03 – Observer Pattern Main Observable PlotPanel Run Source Observer
37. jgs 564 00010000 Assignment 03 – Decorator Pattern Main PlotPanel Observer Drawable SimplePlot DecoratedPlot MarkedPlot BarPlot
38. jgs 564 00010000 Assignment 03 – Decorator Pattern BarPlot MarkedPlot SimplePlot MarkedPlot SimplePlot SimplePlot
39. jgs 564 00010000 Assignment 03 – Singleton Pattern PlotPanel Run << Singleton >> Evaluator
40. jgs 564 00010000 Assignment 03
41. jgs 564 00010000 Questions
42. jgs CSE 564 Software Design Javier Gonzalez-Sanchez, Ph.D. javiergs@asu.edu Fall 2021 Copyright. These slides can only be used as study material for the class CSE564 at ASU. They cannot be distributed or used for another purpose.