- Q What is the relationship between the canvas class and the graphics class?
- Q Define balance sheet ? How balance sheet is useful ?
- Q Compare the similarities and differences among Sockets, DCOM, OLE Enterprise?
- Q Name the command line functions to import and export the DS jobs?
- Q Briefly describe how does electronic mail exchange work. In particular, include Discussion on mail client, mail server, and the specific protocols used.
- Q What are links and symbolic links in UNIX file system?
- Q Explain the difference between baseband and broadband.
- Q By what way would you customize the seralization process? i.e. how the serialization process be controlled ?
- Q What are the chemical substances that compose the plasma membrane?
- Q It often requires more courage to read some books than it does to fight a battle.
- Q Explain : ‘science is a process without a subject’.
Answers
The DataSource class was introduced in the JDBC 2.0 Optional Package as an easier, more generic means of obtaining a Connection. The actual driver providing services is defined to the DataSource outside the application ( Of course, a production quality app can and should provide this information outside the app anyway, usually with properties files or ResourceBundles ). The documentation expresses the view that DataSource will replace the common DriverManager method.
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