How to use JDBC API to call Stored procedures?

JDBC - Interview Questions

Stored procedures are a set of SQL queries that are compiled in the database and will be executed from JDBC API. For executing Stored procedures in the database, JDBC CallableStatement can be used. The syntax for initializing a CallableStatement is:

CallableStatement cs = con.prepareCall("{call insertEmployee(?,?,?,?,?)}");
stmt.setInt(1, id);
stmt.setString(2, name);
stmt.setString(3, role);
stmt.setString(4, address);
stmt.setString(5, salary);
//registering the OUT parameter before calling the stored procedure
cs.registerOutParameter(5, java.sql.Types.VARCHAR);
            
cs.executeUpdate();

We must register the OUT parameters before executing the CallableStatement.