How to code optimistic and pessimistic locking from java code

Question

I know what optimistic and pessimistic locking is, but when you write a java code how do you do it? Suppose I am using Oracle with Java, do I have any methods in JDBC that w

Answer 1

Suppose I am using Oracle with Java, do I have any methods in JDBC that will help me do that?

This Oracle paper should provide you with some tips on how to do this.

There are no specific JDBC methods. Rather, you achieve optimistic locking by the way that you design your SQL queries / updates and where you put the transaction boundaries.