Sorting Algorithms in Java2 min read

In this post, we will learn about the Sorting algorithms in java. There are various sorting algorithm in java that you can implement. we have cover the major algorithms that are mostly used and asked.

Sorting Algorithms

Sorting algorithms can be defined as a process of arranging the array elements in a way that they are either in ascending order or descending order. The most-used orders are numerical order and lexicographical order.

For example:
Consider the array: int Arr[10] = { 10, 4, 5, 2, 20, 35, 34, 17, 9, 14)
Now this array if sorted in descending order will look like as given below:
int Arr[10] = { 2, 4, 5, 9, 10, 14, 17, 20, 34, 35}


Sorting in Java

There are various sorting algorithms in java which of some important are listed and are explained one by one. These various sorting techniques in java are also frequently asked in java interview questions.

The list of types of sorting in java includes the following:

These are indexes of top sorting algorithms in java with examples, click on the solution to understand each of the algorithms.

1. Bubble Sort

Bubble sorting is the simplest sorting algorithm that works by comparing two adjacent elements in an array and swapping them if found in the wrong order.
Explanation with Example.

2. Selection Sort

The selection sort is a simple sorting algorithm which is an in-place comparison-based algorithm. It has two parts where the left end has a sorted part and the right end has an unsorted part.
Explanation with Example.

3. Heap Sort

Heap is a tree in heap sorting that possesses some specific properties whose value should be greater than or equal to that of the children node.
Explanation with Example.

4. Insertion Sort

Insertion sort is a simple sorting algorithm that sorts the elements in an array by comparing the values at index with all its prior elements. This process takes more time so it is only used for small data set.
Explanation with Example

5. Quick Sort

Quick sort algorithm is a way of rearranging the elements in an array in ascending or descending order. Quicksort is another Divide and Conquer algorithm.
Explanation with Example.

6. Merge Sort

Merge Sort is another sorting algorithm that follows a Divide and Conquer algorithm approach to sort the elements in an array in ascending or descending order.
Explanation with Example.

7. Shell Sort

Shell sort is an in-place comparison-based sorting algorithm and variation of Insertion sort. It is a better version of Insertion sort in comparison-based. It can compare the elements far apart whereas Insertion compares adjacent elements.
Explanation with Example

8. Counting Sort

Counting Sort Algorithm is an integer-based algorithm, non-comparison, and linear sorting algorithm. The counting sort algorithm sorts the elements in an array in a specific range. It is based on keys between the specific range.
Explanation with Example.


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