In Java, an association (Figure E) translates to an instance scope variable as in the example code in the Java section of Figure E. Additional adornments can also be attached to an association.

In our third installment on UML we'll show you how to use sequence diagrams as a tool in your application development and an understanding of object interaction.

If modeling projects aren't available, check that you have the Ultimate version. Create a new UML Class Diagram and drag classes, interfaces and enumerations from the toolbox, as shown in Figure 1. To ...