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95 posts

Java Program to Compute the Sum of Numbers in a List Using Recursion

Last Updated: 23 April 2023

ArrayList is a part of the Collection framework and is present in java.util package. It provides us with dynamic arrays in Java. Though, it may be slower than standard arr...read more

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Java-Collections

Java Program to Combine Two List by Alternatively Taking Elements

Last Updated: 08 August 2022

A list is an ordered sequence of elements stored together to form a collection. A list can contain duplicate as well as null entries. A list allows us to perform index-bas...read more

article_image

Java-Collections

Iterate through List in Java

Last Updated: 03 June 2024

Lists in Java allow us to maintain an ordered collection of objects. Duplicate elements as well as null elements can also be stored in a List in Java. The List interface i...read more

Java-Collections

Java Program to Check Whether an Element Occurs in a List

Last Updated: 07 January 2021

The List Interface in Java represents an ordered collection or sequence. This Interface helps us control where to insert elements and also access elements through an integ...read more

Technical Scripter

Technical Scripter 2020

Java-Collections

Java Program to Reverse a List

Last Updated: 12 September 2022

Reversing a list means after reversing the list, the first element should be swapped with the last element, the second element should be swapped with the second last eleme...read more

Technical Scripter

Technical Scripter 2020

Java-Collections

Java Program to Concatenate Two List

Last Updated: 19 January 2021

Concatenating two lists means merging two lists into a single list.Consider the given lists:LIST 1LIST 2LIST AFTER CONCATENATIONThere are several methods to perform concat...read more

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Java-Collections

Difference Between List and Set in Java

Last Updated: 29 April 2022

The List interface allows storing the ordered collection. It is a child interface of Collection. It is an ordered collection of objects in which duplicate values are allow...read more

Technical Scripter

Difference Between

Technical Scripter 2020

Java-Collections

Iterate List in Java using Loops

Last Updated: 21 June 2021

In this article, we are going to see how to iterate through a List. In Java, a List is an interface of the Collection framework. List can be of various types such as Array...read more

Java-Collections

How to Test Java List Interface Methods using Mockito?

Last Updated: 02 February 2022

Mockito is an open-source testing framework used for unit testing of Java applications. It plays a vital role in developing testable applications. Mockito is used to mock ...read more

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When to use Array over a List?

Last Updated: 11 March 2024

Array: Array is a linear data structure that is the collection of similar data types. Arrays are static data structures with fixed sizes. Arrays are stored in the contig...read more

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Data Structures

Interview-Questions

Conversion of a List to a Queue in Java

Last Updated: 25 January 2024

In this article, We will learn about how to convert a List to a Queue in Java using various methods.PrerequisiteQueue Interface in JavaList Interface in JavaMethods to Con...read more

Java-Collections

How to Convert a LinkedHashSet into an Array and List in Java?

Last Updated: 15 February 2024

In Java, LinkedHashSet is a predefined class of Java that extends the HashSet and it implements the Set interface. It can be used to implement the doubly linked list of th...read more

java-LinkedHashSet

How to Convert a PriorityQueue into an Array, List, and Set in Java?

Last Updated: 16 February 2024

In Java, PriorityQueue is an implementation of the Queue interface. It means high-priority elements can be saved first compared to lower-priority elements in the queue, an...read more

java-priority-queue

Get Values with Unique Elements from a List in Java

Last Updated: 03 April 2024

In Java, we can write programs to get values with unique elements using loops, conditional statements, and string manipulation. The basic idea is to go through a set of nu...read more

How to Convert List of Lists to HashSet in Java?

Last Updated: 26 February 2024

In Java, Collections like lists, and sets play a crucial role in converting and manipulating the data efficiently. The Conversion of a List of Lists into a HashSet is main...read more