public SingleSet(AbstractSet child, FSet fSet)
{
this.kid = child;
this.fSet = fSet;
this.groupIndex = fSet.GetGroupIndex();
}
public JointSet(ArrayList children_0, FSet fSet_1)
{
this.children = children_0;
this.fSet = fSet_1;
this.groupIndex = fSet_1.GetGroupIndex();
}