import java.sql.*;

public class Crash {

	public static void main(String args[]) throws Exception {
		Class.forName("org.postgresql.Driver");
		Connection conn = DriverManager.getConnection("jdbc:postgresql://localhost:5844/jurka?loglevel=2","jurka","");
		conn.setAutoCommit(false);

		PreparedStatement pstmt = conn.prepareStatement("SELECT ? ; SELECT SELECT ? ");
		pstmt.setInt(1, 1);
		pstmt.setInt(2, 2);
		pstmt.execute();
	}
}