Learn to work with key value pairs in Java using Pair classes e.g. javafx.util.Pair, ImmutablePair, MmutablePair (common langs) and io.vavr.Tuple2 class. Read More : Tuples in Java 1. Why we need pairs? A pair provide a convenient way of associating a simple key to value. In Java, maps are used to store key-value pairs. Maps …
A tuple is an immutable wrapper object that holds different pieces of information. Learn to create tuples using a custom Java class and Javatuple library.
Learn to implement a priority queue in Python using the queue.PriorityQueue class, heapq and bisect modules with examples.
This tutorial gives an example of implementing a Stack data structure using an Array. The stack offers to put new objects on the stack (push) and to get objects from the stack (pop). A stack returns the object according to last-in-first-out (LIFO). Please note that JDK provides a default java …
We may need to design our own custom list implementation for a very specific requirement or simply as a coding question in a Java interview.
HowToDoInJava provides tutorials and how-to guides on Java and related technologies.
It also shares the best practices, algorithms & solutions and frequently asked interview questions.