While singly-linked lists have many uses, they also present some restrictions. For one thing, singly-linked lists restrict node traversal to a single direction: you can’t traverse a singly-linked list ...

In this example, Employee is a self-referential class because its next field has type Employee. This field is an example of a link field because it can store a reference to another object of its class ...

A frequently asked question in a Java interview is: How to implement a Java HashMap? Java job seekers must fully grok this important concept if they want to ace the interview. The HashMap tutorial ...