how to connect database with a java program

Answer 1

It's called jdbc(java database connector) driver. Download the jar file and put it on library, you are all ok to play with database in java. Also some orm(object relational model) tools are found like hibernate for manipulating database(For me seems more easier.). Now it's your choice.

Answer 2

Easiest way is to use a JDBC connection driver. In case you need assistance in writing the connection statements, leave a message in the comments section.