🎓 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

In this tutorial, we will write a Program to implement the Bubble Sort algorithm in Kotlin programming language.

Bubble Sort Algorithm is one of the simplest sorting algorithms. The bubble sort repeatedly compares adjacent values and swaps them, if needed, to perform the sort. The larger values in the set will, therefore, bubble up to the end of the collection.

Bubble Sort Algorithm in Kotlin

Let's write the Kotlin program to implement the Bubble sort algorithm to sort elements in ascending order as well as in descending order:

import java.util.*

fun <E: Comparable<E>> Array<E>.sort() {
    val len = size
    for (i in 0 until (len - 1)) {
        for (j in 0 until (len - i - 1)) {
            if (this[j].compareTo(this[j + 1]) > 0) {
                val temp = this[j]
                this[j] = this[j + 1]
                this[j + 1] = temp
            }
        }
    }
}

fun <E: Comparable<E>> Array<E>.descending() {
    val len = size
    for (i in 0 until (len - 1)) {
        for (j in 0 until (len - i - 1)) {
            if (this[j].compareTo(this[j + 1]) < 0) {
                val temp = this[j]
                this[j] = this[j + 1]
                this[j + 1] = temp
            }
        }
    }
}

fun main(args: Array<String>) {
    val nums = arrayOf(2, 12, 89, 23, 76, 43, 12)
    nums.sort()
    println(Arrays.toString(nums))
    nums.descending()
    println(Arrays.toString(nums))
}

Output:

[2, 12, 12, 23, 43, 76, 89]
[89, 76, 43, 23, 12, 12, 2]

This method sorts the elements in ascending order:

fun <E: Comparable<E>> Array<E>.sort() {
    val len = size
    for (i in 0 until (len - 1)) {
        for (j in 0 until (len - i - 1)) {
            if (this[j].compareTo(this[j + 1]) > 0) {
                val temp = this[j]
                this[j] = this[j + 1]
                this[j + 1] = temp
            }
        }
    }
}

This method sorts the elements in descending order:

fun <E: Comparable<E>> Array<E>.descending() {
    val len = size
    for (i in 0 until (len - 1)) {
        for (j in 0 until (len - i - 1)) {
            if (this[j].compareTo(this[j + 1]) < 0) {
                val temp = this[j]
                this[j] = this[j + 1]
                this[j + 1] = temp
            }
        }
    }
}

Related Data Structures and Algorithms in Kotlin

Bubble Sort Algorithm in Kotlin
Heap Sort Algorithm in Kotlin
Insertion Sort Algorithm in Kotlin
Merge Sort Algorithm in Kotlin
Quick Sort Algorithm in Kotlin
Selection Sort Algorithm in Kotlin
Stack Data Structure Implementation in Kotlin
Queue Data Structure Implementation in Kotlin
Deque Implementation in Kotlin
Singly Linked List Implementation in Kotlin
Doubly Linked List Implementation in Kotlin
Circular Linked List Implementation in Kotlin

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:

Spring Boot + RabbitMQ Course - The Practical Guide

Java Guides

Search This Blog