p;
public boolean getPre()
{
return pre;
}
public void setPre(boolean pre)
{
this.pre=pre;
}
public boolean getNext()
{
return next;
}
public void setNext(boolean next)
{
this.next=next;
}
public boolean getLast()
{
return last;
}
public void setLast(boolean last)
{
this.last=last;
}
}