| There are more than 200 Java packages and 4,000 classes available. The Exercise IV tries to pick a useful one and has students be familiar with how packages work, so when students start working for the industry, they will have an idea of how to pick a Java package and use it to facilitate their works. |
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The electronic and mobile commerce systems are the most widely deployed IT systems in these days, and they are covered in the course CSci457 E/M-Commerce Systems, which may not be offered anymore.
| The red line in the figure shows the percentage of m-commerce in the total retail e-commerce. Almost all business applications require to use databases, so it is very reasonable that the instructor picks the Java Database Connectivity (JDBC) for a detailed study. This exercise is made as simple as possible. The most difficult part may be to be familiar with the APIs and set up the environment. |
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Once one SQL command in a JDBC program works, the rest would be similar and routine.
The following package is therefore picked:
import oracle.jdbc.*; |
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My mother is back on her feet after being sick for two weeks. |