🎓 Top 15 Udemy Courses (80-90% Discount): My Udemy Courses - Ramesh Fadatare — All my Udemy courses are real-time and project oriented courses.
▶️ Subscribe to My YouTube Channel (178K+ subscribers): Java Guides on YouTube
▶️ For AI, ChatGPT, Web, Tech, and Generative AI, subscribe to another channel: Ramesh Fadatare on YouTube
1. Introduction
In many scenarios, there's a need to modify the content of a list by removing certain elements. In this guide, we'll walk through how to remove an element from a list in Kotlin.
2. Program Overview
Our program will carry out the following steps:
1. Initialize a list of numbers.
2. Remove an element from this list.
3. Display the original list and the modified list for comparison.
3. Code Program
fun main() {
// Step 1: Initialize a list of numbers
val listOfNumbers = mutableListOf(1, 2, 3, 4, 5)
// Step 2: Remove an element from this list. Let's remove the number 3.
listOfNumbers.remove(3)
// Step 3: Display the original list and the modified list
println("Original List: [1, 2, 3, 4, 5]")
println("List After Removal: $listOfNumbers")
}
Output:
Original List: [1, 2, 3, 4, 5] List After Removal: [1, 2, 4, 5]
4. Step By Step Explanation
1. Initializing a List: We start by initializing a mutable list named listOfNumbers with a set of integer values. Note that it's necessary for the list to be mutable, as immutable lists (listOf) can't be modified after their creation.
2. Removing an Element:
- We use the remove() function provided by Kotlin's MutableList type. The remove() function takes the actual element value as its parameter, not the index. In our program, the number 3 is removed.
3. Displaying Results:
- The original list and the modified list post-removal are then displayed. Notice the absence of the number 3 in the modified list.It's essential to be acquainted with such operations, as modifying lists is a routine task in many applications.
Kotlin's standard library provides intuitive and efficient methods to handle such modifications.
My Top and Bestseller Udemy Courses. The sale is going on with a 70 - 80% discount. The discount coupon has been added to each course below:
Build REST APIs with Spring Boot 4, Spring Security 7, and JWT
![[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25](https://img-c.udemycdn.com/course/750x422/6852721_b512_2.jpg "[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25")
[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25
ChatGPT + Generative AI + Prompt Engineering for Beginners
Spring 7 and Spring Boot 4 for Beginners (Includes 8 Projects)
Available in Udemy for Business
Building Real-Time REST APIs with Spring Boot - Blog App
Available in Udemy for Business
Building Microservices with Spring Boot and Spring Cloud
Available in Udemy for Business
Java Full-Stack Developer Course with Spring Boot and React JS
Available in Udemy for Business
Build 5 Spring Boot Projects with Java: Line-by-Line Coding
Testing Spring Boot Application with JUnit and Mockito
Available in Udemy for Business
Spring Boot Thymeleaf Real-Time Web Application - Blog App
Available in Udemy for Business
Master Spring Data JPA with Hibernate
Available in Udemy for Business
Spring Boot + Apache Kafka Course - The Practical Guide
Available in Udemy for Business
Comments
Post a Comment
Leave Comment