public LinkNode()
{
next = null;
}
public LinkNode()
{
data = default(T);
next = null;
}
public LinkNode(T val)
{
data = val;
next = null;
}
public LinkNode(LinkNode <T> p)
{
data = default(T);
next = p;
}
public LinkNode(T val, LinkNode <T> p)
{
data = val;
next = p;
}