Here are some advantages and disadvantages of using an ArrayList in Kotlin:ĭynamic resizing: Unlike arrays, ArrayList can resize dynamically, which means you can add or remove elements from the list as needed.įlexible storage: ArrayList can store objects of any type, making it useful for storing collections of heterogeneous data.Įasy manipulation: ArrayList provides a variety of methods for adding, removing, and manipulating elements in the list, making it easy to work with.

ISRO CS Syllabus for Scientist/Engineer Exam.

ISRO CS Original Papers and Official Keys.

GATE CS Original Papers and Official Keys.DevOps Engineering - Planning to Production.Python Backend Development with Django(Live).Android App Development with Kotlin(Live).Full Stack Development with React & Node JS(Live).Java Programming - Beginner to Advanced.Data Structure & Algorithm-Self Paced(C++/JAVA).Data Structure & Algorithm Classes (Live).The method below demonstrates how to use the firstOrNull() method. If no element matches the given predicate function, then null is returned. This method returns the first element from the list that satisfies the provided the predicate.

This method takes a predicate function as an argument.

Syntax to get the first element that matches the predicate fun List.firstOrNull( Returns the first element if the ArrayList is not empty. Syntax to get the first element // to get first element If no element matches the provided predicate function, then null is returned. To get the first element of the ArrayList that satisfies the provided predicate function Predicate is a Functional interface, which takes one argument and returns either true or false based on the condition defined.If the ArrayList is empty, then null is returned. To get the first element of the ArrayList.

The firstOrNull() method can be used in two ways.

Kotlin list find