Persistence is one of the greatest challenges for building applications. There are many options for building persistence layers. Data Access Objects (DAO) is a popular design pattern for building the ...

The classpath now has access to the driver ... using the JDBC Connection and Statement objects. Listing 5. Querying the database with JDBC import java.sql.Connection; import java.sql.DriverManager ...

In Java, encapsulation basically translates to this simple guideline: “Don’t access your object’s data directly; use its methods.” That is an elementary idea, but it eases our lives as ...