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A client-server bank program, which uses JDBC

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A client-server bank program, which uses JDBC to persist data in a database. This example illustrates the following.
* JDBC usage
* Using an integration layer for database access in a layered architecture
* The Database Access Object (DAO) pattern
* The Data Transfer Object (DTO) pattern
* Race condition problems when multiple clients update server state
* JDBC usage
* Using an integration layer for database access in a layered architecture
* The Database Access Object (DAO) pattern
* The Data Transfer Object (DTO) pattern
* Race condition problems when multiple clients update server state