static boolean agregarElementoColeccion( int posCol ){
        try{
            if( cols[ posCol ] instanceof ColeccionChar )
                cols[ cont ].agregar( lea.next().charAt(0) );
            else if( cols[ posCol ] instanceof ColeccionDouble )
                cols[ cont ].agregar( lea.nextDouble() );
            else if( cols[ posCol ] instanceof ColeccionEntera )
                cols[ cont ].agregar( lea.nextInt() );
            else
                cols[ cont ].agregar( lea.next() );
            cont++;
            return true;
            
        }
        catch(ArrayIndexOutOfBoundsException a){
            System.out.println("Posicion Incorrecta");
        }
        catch(Exception e){
            System.out.println("Error: " + e.getMessage());
        }
        
        return false;
    }