array comparison in java

I was doing a project and needed the following logic ... link and I came across the following situation ... and if it was with 2 different queries how would it look? in my case I have to compare the result of the first select and search in the second the items that correspond to the first one ... to be more specific I have a select with patients that has appointments and I need to seek the care of each patient

Connection

package geradorhtml3;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class Conexao {

    public Connection conFirebird() {

        Connection con = null;
        String driver = "org.firebirdsql.jdbc.FBDriver";
        String user = "SYSDBA";
        String senha = "masterkey";
        String url = "jdbc:firebirdsql://localhost:3050/D:/firebird/meubanco.FDB";

        try {
            Class.forName(driver);
            con = (Connection) DriverManager.getConnection(url, user, senha);
            System.out.println("Conexão realizada com sucesso.");

        } catch (ClassNotFoundException | SQLException ex) {
            System.err.println(ex.getMessage());

        }
        return con;
    }

}

Patient     package geradorhtml3;

import java.sql.Date;

public class Paciente {

       private static String nome;  
       private static String cpf;  
       private static String tel;  
       private static Date dataNasc; 

    public static String getNome() {
        return nome;
    }

    public static void setNome(String aNome) {
        nome = aNome;
    }

    public static String getCpf() {
        return cpf;
    }

    public static void setCpf(String aCpf) {
        cpf = aCpf;
    }

    public static String getTel() {
        return tel;
    }

    public static void setTel(String aTel) {
        tel = aTel;
    }

    public static Date getDataNasc() {
        return dataNasc;
    }

    public static void setDataNasc(Date aDataNasc) {
        dataNasc = aDataNasc;
    }


}

Cycles

package geradorhtml3;

import java.sql.Date;

public class Ciclo {

    private static String id;
    private static String nome;
    private static String cod_paciente;
    private static Date data;

    public static String getId() {
        return id;
    }

    public static void setId(String aId) {
        id = aId;
    }

    public static String getNome() {
        return nome;
    }

    public static void setNome(String aNome) {
        nome = aNome;
    }

    public static String getCod_paciente() {
        return cod_paciente;
    }

    public static void setCod_paciente(String aCod_paciente) {
        cod_paciente = aCod_paciente;
    }

    public static Date getData() {
        return data;
    }

    public static void setData(Date aData) {
        data = aData;
    }



}

Here is my doubt

package geradorhtml3;

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Buscar {

    private static ArrayList c;

    private static ArrayList f;

    public Buscar() {

        try {

            ResultSet[] rs = new ResultSet[2];
            Connection con = new Conexao().conFirebird();
            CallableStatement cs = null;
            //String sql = "SELECT * FROM PACIENTE";            
            //String sql = "SELECT * FROM CICLOS";
            /* 
            Estou tentando juntar esses dois selects os quais tem um relacionamento, 
            porem NÃO pode ser feito no banco, tem q ser feito em codigo a uniao deles
            */

            String sql = "{CALL RETORNA_CLI_FORN()}";

            cs = con.prepareCall(sql);
            rs[0] = cs.executeQuery();

            c = new ArrayList();
            Paciente cl = new Paciente();

            while (rs[0].next()) {

                cl.setNome(rs[0].getString("NOME"));
                cl.setCpf(rs[0].getString("CPF"));
                cl.setTel(rs[0].getString("TEL"));
                cl.setDataNasc(rs[0].getDate("DATA_NASCIMENTO"));
                c.add(cl);

            }

            if (cs.getMoreResults()) {
                rs[1] = cs.getResultSet();
                f = new ArrayList();
                Ciclo fo = new Ciclo();
                while (rs[1].next()) {
                    fo.setNome(rs[1].getString("NOME"));
                    fo.setCod_paciente(rs[1].getString("CNPJ"));
                    f.add(fo);
                }
            }

        } catch (SQLException ex) {
            Logger.getLogger(Paciente.class.getName()).log(Level.SEVERE, null, ex);

        }

    }

    public Iterator retornaPaciente() {
        Iterator i = c.iterator();
        return i;

    }

    public Iterator retornaCiclo() {
        Iterator i = f.iterator();
        return i;
    }

}

MAIN

package geradorhtml3;

import java.util.Iterator;

public class GeradorHtml3 {

    public static void main(String[] args) {

        Buscar c = new Buscar();
        Iterator _ic = null;
        Iterator _if = null;
        Paciente cl = new Paciente();
        Ciclo fo = new Ciclo();
        _ic = c.retornaPaciente();
        _if = c.retornaCiclo();

        while (_ic.hasNext()) {
            cl = (Paciente) _ic.next();
            System.out.println(
                cl.getNome() + " - " + 
                cl.getCpf() + " -" + 
                cl.getTel() + " - " + 
                cl.getDataNasc());
        }

        while (_if.hasNext()) {
            fo = (Ciclo) _if.next();
            System.out.println(fo.getNome() + " - " + fo.getCod_paciente());

        }

    }

}