Node power=dummyhead.next;
public void remove1(K kay){
remove1(kay,dummyhead,power);
}
public Node remove1(K newkay,Node dummynode,Node power1 ){
if(power1.kay!=newkay){
dummynode.next=remove1(newkay,dummynode.next,power1.next);
}
return power1.next;
}