Understanding Linked Lists
Introduction:
Arrays in Java can be tedious to work with because they require a set amount of memory to be allocated on creation and they do not allow for easy removal or insertion of elements. A linked list is a simple solution to the shortcomings of arrays. In this assignment, you will be creating the LinkedSimpleCollection and the LinkedSimpleIterator classes which implement the SimpleCollection and SimpleIterator interfaces, respectively. By completing this assignment, you will learn how a linked collection works and about its benefits and shortcomings.
Part 1: Nodes
In order to build the LinkedSimpleCollection class, you will first need to create the Node class. Each Node contains an element and a pointer to another Node. Nodes, when combined, form the structure of a linked list. The element of a Node can be of any type, so the Node class must be generic. The Node class has no methods, but the constructor of the Node class should take two arguments: the element of a generic type and a pointer to another Node which we will call next. By creating Nodes with a pointer to another Node, you are setting up the basis for a LinkedSimpleCollection.
You can test the Node class with the following DrJava interactions:
> Node n1 = new Node(“Foo”,null)
> n1.element
“Foo”
> n1.next
null
> Node n2 = new Node(“Bar”,n1)
> n2.element
“Bar”
> n2.next.element
“Foo”
Part 2: Creating a Linked List
Keeping track of manually linked Nodes can be difficult, so we need a class that will link these Nodes automatically. In this part of the assignment you will create the LinkedSimpleCollection class. This class has a constructor and must satisfy its contract to the SimpleCollec...
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... the LinkedSimpleCollection class. This can be done by creating a new LinkedSimpleIterator in the iterator method of LinkedSimpleCollection and passing this to the constructor.
You can test the LinkedSimpleIterator class with the following DrJava interactions:
> LinkedSimpleCollection c = new LinkedSimpleCollection ()
> c.add(“Four”)
True
> c.add(“Three”)
True
> c.add(“Two”)
True
> c.add(“One”)
True
> SimpleIterator Iterc= c.iterator()
> Iterc.hasNext()
True
> Iterc.next()
“One”
> Iterc.next()
“Two”
> Iterc.hasNext()
True
> Iterc.remove()
> Iterc.next()
“Four”
> Iterc.hasNext()
False
You can now step through a linked list, but notice that after stepping through the list it is impossible to move backwards without creating a new iterator of the same list. This flaw is one of the shortcomings of one-way linked lists.
After my assigned nightly reading, the biggest idea about the book Chains by Laurie Halse Anderson, was what does the scar symbolize? I thought the scar meant power, because it shows how Isabel is strong. “This is my country mark.”(286), said by Isabel. This quote is showing how Isabel finds out that this scar makes her strong and how she was her fathers daughter. What I’m trying to say is the scar changes from showing pain, now the scar makes her stronger. When Isabel was looking at the mirror she said, “This mark stands for Isabel.”(286) This made Isabel believe that the scar wasn’t bad, but it was a good thing. She has to go through pain to find freedom, and to be shown that she has hope.
Chains, by Laurie Halse Anderson, is about a girl named Isabel and her younger sister Ruth who are both slaves during the revolutionary war. When their former owner Miss Mary Finch passes away her will she states to free both Isabel and Ruth, and they are ready to claim their freedom. Sadly the lawyer, who wrote the will, Mr. Cornell, left for Boston before the blockade and took his papers with him. Since they have no proof in being free, Miss Finche’s awful nephew sells the two to the Lockton family. Mr. and Mrs. Lockton are two cruel loyalist that they are sold to in New York. Mr. and Mrs. Lockton have zero sympathy for Patriots, and even less for Isabel and Ruth. Once in New York, Isabel meets Curzon, a slave working with the Patriots while he’s leading her to the water pump. While on their way back, Curzon suggests a deal to Isabel. If she spies on the Locktons and gives that information to the Patriots, then he can guarantee hers and Ruth’s freedom. Hesitant about this deal at first, Isabel tells Curzon “no” to protect Ruth’s safety. But after a series of events, she decides to change her mind and spy on the Locktons for the rebellion which is what this book is all about.
...he search involves repeatedly taking the first node off the queue, finding that node’s successors, and putting them on the end of the queue. This continues until either the first node on the queue is the goal or target state, or the queue is empty. If the first node is the target state the algorithm will signal success (e.g. return TRUE). Otherwise the search fails. What is nice about about this algorithm is that by simply replacing the queue with a stack the same algorithm now performs a depth first search. Having a stack allows the algorithm to ‘backtrack’ to previous nodes and then select new routes from that node. Simply searching for a target on this basis is called a ‘blind search’. Using additional information that might aid the algorithm to more intelligently find the target is called a ‘heuristic search’ an example of which is the A* tree search algorithm.
In the final chapter of The Impossible Knife of Memory, the main character of the book, Hayley begins it off talking about being in a fairytale. If this was her fairytale, this chapter would be her happily ever after. Before this chapter of the book, her life had been disorganized frequently because of her father’s disorder. Her father, Andy Kincain, a war veteran, has PTSD. Also known as Post Traumatic Stress Disorder; this disorder is caused by seeing or experiencing a very intense, and terrifying event. In Andy’s case, the war was what caused his condition.
http://www.uxl.com/item/item/item/i 31-38. Gale Virtual Reference Library. Web. The Web. The Web.
ASDA's Hierarchial Structure A hierarchical structure has many levels. Each level is controlled by one person. A hierarchical company tends to be a very big company just like ASDA is. In a hierarchical company, instructions are generally passed down from one person to another until it gets to the bottom.
In this experiment we replicated a study done by Bransford and Johnson (1972). They conducted research on memory using schemas. All human beings possess categorical rules or scripts that they use to interpret the world. New information is processed according to how it fits into these rules, called schemas. Bransford and Johnson did research on memory for text passages that had been well comprehended or poorly comprehended. Their major finding was that memory was superior for passages that were made easy to comprehend. For our experiment we used two different groups of students. We gave them different titles and read them a passage with the intentions of finding out how many ideas they were able to recall. Since our first experiment found no significant difference, we conducted a second experiment except this time we gave the title either before or after the passage was read. We found no significant difference between the title types, but we did find a significant difference between before and after. We also found a significant title type x presentation interaction. We then performed a third experiment involving showing objects before and after the passage was read. There we did encountersome significant findings. The importance and lack of findings is discussed and we also discuss suggestions for future studies, and how to improve our results.
What is a suggestion to resolve any one of its design related problem of Connection-Oriented and
This article is about LINQ (Language Integrated Query) which is one of the most entertaining concept and feature in .NET programming. LINQ makes the querying of data a unique programming concept in .NET. Querying of data can be taken from XML (LINQ to XML), database (LINQ enabled ADO.NET, LINQ to SQL, LINQ to Dataset, LINQ to Entities) and Object (LINQ to Objects).
8. Network the compute nodes all together. The head node sends the tasks to the other compute nodes .Use a private internal network to connect all the nodes in the cluster.
These basic rules allow user defined as well as built-in data types to define information which allows the schema to be extensible just as XML itself. (N/A, 2001). With these basic structural boundaries in the Schema benefits noted are; (N/A,2001)
Explain in around 600 words, citing any literature you have consulted, what is meant by these terms in relation of object-oriented software design, and explain how they relate to the design you developed in your group.
1. B. F. Cooper and H. Garcia-Molina. “Self-supervising peer-to-peer search networks”. Technical re- port, Computer Science Dept., Stanford University, 2003.
Today, it is so clear to see many significant changes in the education around the world because of computer. Almost all schools and universities have become involved with computer’s system to provide an appropriate environment for students to study or prepare for classes. For example, Oklahoma State University provides a crucial program called Desire to Learn (D2L) which is an online website made for teachers to post assignments, grades, and other notes related to the courses. And this program is so helpful because it gives students a nice chance to study from home, participate on announced events, or even avoid students from getting in trouble such as receiving email when weather conditions are not good to attend classes. Moreover, in the past students and researchers used to face difficulties to get information and data related to subject. However, nowadays computer makes it easier because of the gigantic data and information that computer has. Computer has a revolutionary influence in enhancing our education.
The Bibliographic Chain is a process whereby information proceeds through an individual’s imagination/mind to its final resting place which may be in the format of an encyclopaedia summary [1]. The Bibliographic Chain contains eleven progressive links which consists of: knowledge within human resources; information created by institutions; documents that are currently being worked on; unpublished studies and findings; periodicals; reports and monographs; services (indexing and abstracting); bibliographic lists and essays/reports; yearly reviews and prolific reports, books and encyclopaedic summaries [5].