JDBC method in java class

Hi All,
I have to write JDBC method for the below query in the oracle database
select col1,col2 from tablex where col3="methodvariable"

where java method xyz(methodvariable) and this mehtod should return col1 and col2 values

and assign to another variable x & y in Java class

The databse schema for the tablex is
col1 varchar2
col2 varchar2
col3 varchar 2
col4 varchar3
thanks in advance

nrao

What have you done so far? You should be familiar with Processing SQL Statements with JDBC