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Questions - singly-linked-list

Why my Circular Singly Linked List Java code not working? It says that Node is null can't put data on it

For the meantime, I'm trying to figure out the basics of how Circular Singly Linked List works. In this case, I'm creating a program in which, user can input from 1 to 3, the number of linked nodes. H...
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fahis23

java

nodes

singly-linked-list

circular-list

Votes: 0

Answers: 1

Latest Answer

The error is on this line: head.data=num;num++; It is quite clear that head was never assigned a node reference. It is still null. In fact, you did create a node and assigned it to newnode, but then ...
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trincot

Dynamic array inside a linked list in C

I'm writing this post after hours of madness and thinking. Probably this is the most stupid exercise you are gonna read today but for me, after hours of exercise, is not like that. Going back to the q...
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DottorBooom

c

linked-list

dynamic-memory-allocation

singly-linked-list

dynamic-arrays

Votes: 0

Answers: 1

Latest Answer

The function init shall allocate an object of the type elementOfList ListOfElements init(int n) { ListOfElements new = malloc( sizeof( *new ) ); if ( new != NULL ) { new->a...
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Vlad from Moscow

C linked list incompatible pointer type

struct list_node { int value; struct list_node *next; }; struct linked_list { int size; struct list_node *head; }; void print_linked_list(struct linked_list *list){ struct linked...
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Enezx

c

pointers

struct

linked-list

singly-linked-list

Votes: 0

Answers: 2

Latest Answer

current is a struct linked_list*, but current->head->next is a struct list_node*. struct linked_list and struct list_node are two different unrelatd structures in spite of their similarity. You ...
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Jabberwocky

make a for loop for linked list class

i want to iterate over my custom class linked list, could anyone help me for that, i couldn't find it straightforward in web. the problem is when i want to iterate over linked list its give me an erro...
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amirhossein

python

for-loop

data-structures

linked-list

singly-linked-list

Votes: 0

Answers: 1

Latest Answer

First of all: your code doesn't work: add is missing the self parameter. It should be declared as add(self, value). To make your class instance iterable, define __iter__, and use a loop much like you ...
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trincot

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