Lógica com Avancar e Recuar ((Resolvido))

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package javaapplication2;

import java.util.ArrayList;
import javax.swing.JComponent;
import javax.swing.JTextField;

/**
 *
 * @author Rodrigo-PC
 */
public class AvancarRecuar {

    ArrayList<JComponent> listaComp = new ArrayList<JComponent>();

    public ArrayList<JComponent> getListaComp() {
        return listaComp;
    }

    public void setListaComp(ArrayList<JComponent> listaComp) {
        this.listaComp = listaComp;
    }

    public void Avancar(JComponent componente) {
        int posicao = listaComp.indexOf(componente);
        for (int i = posicao + 1; i < listaComp.size(); i++) {
            if (listaComp.get(i).isEnabled()) {
                if (listaComp.get(i) instanceof JTextField) {
                    if (((JTextField) listaComp.get(i)).isEditable()) {
                        listaComp.get(i).requestFocusInWindow();
                        break;
                    }
                }
            }
        }
    }

    public void Recuar(JComponent componente) {
        int posicao = listaComp.indexOf(componente);
        for (int i = posicao - 1; i >= 0; i--) {
            System.out.println(i);
            if (listaComp.get(i).isEnabled()) {
                if (listaComp.get(i) instanceof JTextField) {
                    if (((JTextField) listaComp.get(i)).isEditable()) {
                        listaComp.get(i).requestFocusInWindow();
                        break;
                    }
                }
            }
        }
    }

}