Test for the access to DB2

package kcwdb2test;

import com.ibm.as400.access.AS400JDBCConnectionPoolDataSource;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class KcwDB2TestDev {
   
    public static void main(String[] args) {

            Connection dbConnection = null;
            String cipher="AES";
            String cipherdomain="INTRANET";
            String host="1.2.3.4";
            String dblibrary="WWWDLIB";

            String login="not-encoded";
            String user="kcw";
            String password="12345678";
            
     try {
      AS400JDBCConnectionPoolDataSource datasource = new AS400JDBCConnectionPoolDataSource(host, user, password);
      datasource.setLibraries(dblibrary);
         dbConnection = datasource.getConnection();
                
                // Sample 1
                String query = "SELECT DMNDMCDEC,USRFINAMC,USRLANAMC,USREMPIDN,USRUSIDNN FROM ASWDLIB.WWUSR10 where DMNDMCDEC='INTRANET'";
                Statement statement = dbConnection.createStatement();
                ResultSet resultSet = statement.executeQuery(query);
                
                while(resultSet.next()) {
                    System.out.println(
                        resultSet.getString(1) + " " +
                        resultSet.getString(2) + " " +
                        resultSet.getString(3) + " " +
                        resultSet.getInt(4) + " " +
                        resultSet.getInt(5));
                }
                statement.close();

                // Sample 2
                PreparedStatement statement2 = dbConnection.prepareStatement(
                        "SELECT DMNDMCDEC,USRFINAMC,USRLANAMC,USREMPIDN,USRUSIDNN FROM ASWDLIB.WWUSR10 where DMNDMCDEC=?"
                        );
                statement2.setString(1, "INTRANET");
                ResultSet resultSet2 = statement2.executeQuery();
                while(resultSet2.next()) {
                    System.out.println(
                        resultSet2.getString(1) + " " +
                        resultSet2.getString(2) + " " +
                        resultSet2.getString(3) + " " +
                        resultSet2.getInt(4) + " " +
                        resultSet2.getInt(5));
                }
                statement2.close();

                
                dbConnection.close();

     } catch (SQLException sqle) {
                sqle.printStackTrace();
     }
            
    }
}