class IsotopeContainer {

    @Override
    public Object clone() throws CloneNotSupportedException {
        IsotopeContainer isoClone = new IsotopeContainer();
        isoClone.forms.addAll(getFormulas());
        isoClone.setIntensity(getIntensity());
        isoClone.setMass(getMass());
        return isoClone;
    }

    public  IsotopeContainer();
    public  IsotopeContainer(IMolecularFormula formula, double intensity);
    public  IsotopeContainer(double mass, double intensity);
    public  IsotopeContainer(IsotopeContainer container);

}