How to create Connection interface object because it is
Interface , Interface is not instansiated?
Answer Posted / anand
We can not create object to any interface but we can create a reference variable to interface. Connection is an interface released by SUN micro system.Once interface released anybody in this world can provide implementation,provide implementation means writing down the code for all the methods of that inteface. As we know that Connection is an interface relased by sun micro system and Oracle corporation provide implementation class to that inteface and this class is called "Connetion class".We can create the reference variable to Connection interface and this reference variable hold the object of class which provide the implementation to Connection class.
DriverManager is also an interface and this interface contains a static method getConnection(), this method returns the object of a class which provide implementation of Connection interface.
| Is This Answer Correct ? | 0 Yes | 7 No |
Post New Answer View All Answers
What is java soft framework?
How we store procedure in oralce for callable statements in jdbc
Why do we need jdbc api?
How can we retrieve data from the resultset?
What are the different types of resultset?
What is the difference between jdbc and jndi?
Why is jdbc used?
What are the differences between setmaxrows(int) and setfetchsize(int)?
What is jdbc stand for?
How can I use the JDBC API to access a desktop database like Microsoft Access over the network?
What do you mean by jdbc batch processing and what are the advantages of using jdbc batch processing?
What is JDBC Statement?
Can I enable requests to a jdbc connection pool for a database connection to wait until a connection is available?
What is preparedstatement in jdbc?
What are the main steps in java to make JDBC connectivity?