We can use CallableStatement interface to call a stored 
procedure.Use the following steps.

1. crate the escape syntax like
String sql="{call procname(?,?,?);
2.CallableStatement cst=con.prepareCall(sql);
3.Set the inparameters using setXXX methods like
cst.setInt(1,10);
cst.setString(2,"abc");
4.Register the out parameter
cst.registerOutParameter(1,Types.Float);
5.Submit the statement using
cst.execute();
6. We can get the data from stored procedure using getXXX 
methods

use callableStatment