The document contains Java methods to manipulate a linked list, including inserting a node at a specific position and deleting the last node. It provides code snippets for each method, including details on how to traverse the list to find positions and manage node links. Additionally, it includes a method for inserting a node at the beginning of the list.

1. (In java)
Create a method to delete a node at a particular position in the linked list AND
Create a method to insert a node at the tail/end of a linked list.
I have these methods that should be manipulated to achieve the methods above:
- Method for inserting a node at a particular position:
public listnodes insertAtPosition(listnodes head,int data,int position){
listnodes newnode=new listnodes(data,null);//create the newnode
listnodes previous=head;
int count=1;
while(count<=position-1) {//reach to a particular position count<position(nodeadded before)
previous=previous.link; /*if the condition in while is true that means not the
position where ypu want to add the node so go to next position*/
count++;
}
//when the condition is false, position is found
listnodes current=previous.link;
newnode.link=current;
previous.link=newnode;
return head;
}
- Method to delete the last node in a linked list:
public listnodes deletelast(listnodes head){
listnodes cur=head;
listnodes previouscur=head;
while(cur.link!=null){//traverse till the last node
previouscur=cur;
cur=cur.link;
}
previouscur.link=null;//disconnect the last node
return cur;
}
- Method to insert a node at the beginning of a linked list:

2. public listnodes insertnode(int data,listnodes head){
//create a new node to be added in the beginning of the linked list
listnodes newnode=new listnodes(data,null);
//link the new node to the head node
newnode.link=head;
//make the new node as the front node
head=newnode;
return head;
}