Salesforce Marketing Cloud Software Developer Mock Interview
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Question 3 of 19
Based on your experience, what's the best way to find a node that begins with two single link lists?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
You will find that interviewers like to ask candidates about the various methods they use to find nodes and link lists. Don't be surprised if this question comes up a couple times during an interview with Salesforce but is asked in a different way. To get a broader understanding of linked lists, here's an overview: A linked list is easiest explained as a linear data structure with the collection of multiple nodes, where each element stores its own data and a pointer to the location of the next element. The last link is essentially a linked list that points to null, which indicates it's at the end of a chain. An element on the other hand in a linked list that is called a node. The first of nodes is called the head, and the last of nodes is called the tail. An interviewer will likely dig into questions about linear data structure, and which nodes contains a value and pointer.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"The best example I can give is to list the most important properties of a class Linked List. This highlights how they are used and why they are used.
A Linked List maintains an insertion order of the elements.
Implements Queue and Deque interfaces. These can also be used as a Queue, Deque or Stack.
A Linked List can contain all the elements, including but not limited to duplicates and null.
A Java Linked List Class library is not synchronized, which means in a multi-threaded environment it must be synchronized concurrently for modifications to the linked list externally.
A Linked List Class doesn't implement a Random Access interface, so elements can be accessed in sequential order.
I can use a List Iterator to iterate elements of the list
I can use a collections synchronized List (new Linked List) to get a synchronized linked list."
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