Java jGrasp
Classes and Objects
1) Constructors and getters and setters Description: This is the first video of a Java series geared toward junior developers. I will start by introducing jGrasp, the development environment used to write Java programs. 2) Employee Description: This video continues our discussion of classes and objects. We start by adding more functionality to the Employee class. 3) Comparing Classes and Objects Description: We first continue the functionality in the Manager class. Then we move into implementing interfaces. An interface is a collection of abstract methods. The job of the class is to implement those methods.
Components
4) JList Swing Description: In this video I start my discussion on Swing components, specifically we will be talking about JList. We will create a ListFrame and build a list and a label within it. The list will contain numbers that represent the font (from 6 to 18). The list will be added to the North portion of the frame and the label will be added to the center portion. 5) JTable Swing Description: In this video, I am going to discuss how to create a simple JTable. It is simple because the data displayed within the table is static. We start by creating a JTable, adding the JTable to a JScrollPane, and finally adding the JScrollPane to the frame.
Tables
6) DynamicTable Description: In this video I extend the discussion on tables by creating a table the inherits the functionalities of the AbstractTableModel. The table slots will be filled using the formula Math.pow(r,c) where r is the row and c is the column.
JTree
7) JEditorPane Description: In this video we will build a JTree. The frame is composed of two sections: left (BorderLayout.WEST) and center (BorderLayout.CENTER). The left section contains a tree of categories (news, sports, and technology). The user will be able to expend and collapse the tree. 8) Hashtable Description: We continue our JTree discussion in this video. In part 1 we stopped at building the tree. Here we add the Hashtable that contains the tree names and the URLs as key/value pairs. we built a JEditorPane that displays the web sites. Finally, we added the actions associated with the leaf nodes.
Serialization
9) ArrayList Description: Description: In this video we continue our discussion on overloading/overriding by creating classes for employees and managers. Then we move into serialization. We need a way to write objects into a permament store. However, it is very tedious to write the objects one field at a time. 10) writeObject Description: Here we finish the application by providing a complete menu driven application that prompts the user for options. Based on the user's selection, we trigger methods that save the ArrayList to a file using writeObject in the ObjectOutputStream class, and retrieve the data from the file using readObject in the ObjectInputStream class and display the result on the screen.
