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Questions - nodes

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

how to pass parameter from one page function to another page class function in Javascript / Node js

I want to pass parameter from my app.js page to another page User.js which contain class function but all I am getting is undefined value. I am trying to pass selected choice from the inqurier but its...
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Aakash

javascript

node.js

nodes

Votes: 0

Answers: 1

Latest Answer

You are trying to call a normal function like a static function. You first need to make a class instance! const { Command } = require("@oclif/command"); const inquirer = require("inquir...
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SoulKa

Why are all of the nodes that I add to different lists ends up in one list?

I have two classes, RectNode and RectList. The assignment is to create a list of rectangles (with another class called RectangleA). When I use the tester it seems like all of the nodes are added to th...
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Michael_fr

java

list

nodes

Votes: 0

Answers: 1

Latest Answer

your _head variable is a static property of the RectList class . static members have the same value in all occurrences of the class. so when you do rL1.addRect(r1); rL2 also get r1 as it's head. then ...
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Daniel

How to find a parent node using recursion

I have an class like this: public class Entity { public Entity() { ChildEntities = new List<Entity>(); } public int Name { get; set; } public string ParentNode { get; set; } ...
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Mr_Happy

c#

sorting

tree

nodes

Votes: 0

Answers: 1

Latest Answer

Your implementation is ok except you should be returning in your second if : if (entity.ChildEntities.Count != 0) { var parent = findParent(entity); // <- here if(parent != null){ return...
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Eldar

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