private void desactivarOpcion(int dato)
    {
        if(Integer.parseInt(this.jButton9.getText()) == dato)
            this.jButton9.setBackground(Color.GRAY);
        else if(Integer.parseInt(this.jButton11.getText()) == dato)
            this.jButton11.setBackground(Color.GRAY);
        else if(Integer.parseInt(this.jButton15.getText()) == dato)
            this.jButton15.setBackground(Color.GRAY);
        else if(Integer.parseInt(this.jButton7.getText()) == dato)
            this.jButton7.setBackground(Color.GRAY);
        else if(Integer.parseInt(this.jButton12.getText()) == dato)
            this.jButton12.setBackground(Color.GRAY);
        else if(Integer.parseInt(this.jButton13.getText()) == dato)
            this.jButton13.setBackground(Color.GRAY);
        else if(Integer.parseInt(this.jButton10.getText()) == dato)
            this.jButton10.setBackground(Color.GRAY);
        else if(Integer.parseInt(this.jButton8.getText()) == dato)
            this.jButton8.setBackground(Color.GRAY);
        else if(Integer.parseInt(this.jButton14.getText()) == dato)
            this.jButton14.setBackground(Color.GRAY);                
    }