CSC212 Lab 15 2014

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--D. Thiebaut (talk) 09:43, 27 November 2014 (EST)


This lab introduces the Model-View-Controller (MVC) system for implementing Graphical User Interfaces (GUI). Please review the slides from the MVC lecture notes if necessary.


First Contact

50x50Network.png


  • Create a new project, or add new files to an existing project. You will need to import core.jar from the Processing 2 app into your project, and then add it to the build path.
  • You need to create 3 different classes, one for the controller, one for the viewer, and one for the model.
  • MVC1_controller.java
  • MVC1_viewer.java
  • MVC1_model.java
  • This tutorial contains the code for all three classes. Copy/paste the code into your three classes.


Run the Applet


  • The starting class is the viewer. It's the applet class.
  • Run it. Play with the applet to understand how it works.


Explore the Code


  • Read the code for the model. Notice that it contains the bare definition of a graph, its vertices, and its edges, and not much else. That's what a model should contain.
  • Look at the main public methods. They are few. They mostly allow one to
  • initialize a graph, if we want one already made.
  • add an edge
  • get the dimension of the grid
  • get the adjacency list of a vertex
  • Change the probability100 variable; it controls the probability of creating an edge between a vertex and its neighbors. The lower the value, the less connected the graph is. The closest to 100, the more fully interconnected the vertices get. Run the applet again.