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+package transfertcp;%0A%0Aimport java.io.DataOutputStream;%0A%0A/**%0A *%0A * @author JoseCaceres%0A */%0Apublic class ListaUpdate %7B%0A    private nodoUpdate cab, recor, eliminar;%0A    %0A    public ListaUpdate() %7B%0A        this.cab = null;%0A    %7D%0A    %0A    public void add(nodoUpdate dato) %7B%0A        if(cab == null)%0A            cab = dato;%0A        else %7B%0A            recor = cab;%0A            while(true) %7B%0A                if(recor.getSuc() != null)%0A                    recor = recor.getSuc();%0A                else%0A                    break;%0A            %7D%0A            recor.setSuc(dato);%0A        %7D%0A    %7D%0A    %0A    public nodoUpdate getCab() %7B%0A        return cab;%0A    %7D%0A    %0A    public void ejecutar(DataOutputStream salida) %7B%0A        cab.actualizar(salida);%0A        eliminar = cab;%0A        cab = cab.getSuc();%0A        eliminar = null;%0A    %7D%0A%7D%0A%0A

Create ListaUpdate.java