Merge Sort Java Program; Merge sort (also known as mergesort) is a general-purpose, comparison-based sorting algorithm developed in computer science.
The majority of implementations create a stable Merge sort examples, which means that the order of equal elements in the input and output is the same.
Array and buffered reader are used in the project to accomplish merge sort. The “Divide-and-Conquer” method is used in the merge sort algorithm.
We have included a downloadable zip file at the end of the program so that you may run the following codes.
Example Program:
//Merge Sort Java Program : Sample Code
package mergesortjavaprogram;
import java.util.Scanner;
public class MergeSortJavaProgram {
public static void merge(int a[], int l, int m, int h) {
int i, j, c = l;
int b[] = new int[h + 1];
for (i = l, j = m + 1; i <= m && j <= h; c++) {
if (a[i] <= a[j]) {
b[c] = a[i++];
} else {
b[c] = a[j++];
}
}
while (i <= m) {
b[c++] = a[i++];
}
while (j <= h) {
b[c++] = a[j++];
}
for (i = l; i <= h; i++) {
a[i] = b[i];
}
}
public static void Sort(int a[], int l, int h) {
if (l < h) {
int m = (l + h) / 2;
Sort(a, l, m);
Sort(a, m + 1, h);
merge(a, l, m, h);
}
}
public static void printarray(int a[]) {
for (int i = 0; i < a.length; i++) {
System.out.print(a[i] + " ");
}
}
public static void main(String[] args) {
int n, res, i;
Scanner s = new Scanner(System.in);
System.out.print("Enter number of elements in the array:");
n = s.nextInt();
int a[] = new int[n];
System.out.println("Enter " + n + " elements ");
for (i = 0; i < n; i++) {
a[i] = s.nextInt();
}
System.out.println("elements in array ");
printarray(a);
Sort(a, 0, n - 1);
System.out.println("\nelements after sorting");
printarray(a);
}
}
Output:
//Merge Sort Java Program: Sample Code Output
Enter number of elements in the array:5
Enter 5 elements
4
5
3
2
0
elements in array
4 5 3 2 0
elements after sorting
0 2 3 4 5
What is the importance of the Program of merge sort in Java?
The merge step solves the problem of combining two sorted lists (arrays) into a single large sorted list (array).
The technique keeps track of three pointers: one for each of the two arrays and one for the final sorted array’s current index.
Java is an object-oriented, cross-platform programming language with excellent memory management and security capabilities.
It also supports multithreading, allowing you to write code that performs multiple tasks at once.
As a result, beginners should concentrate on mastering this simple problem project.
What is the use of Merge sort examples?
Like QuickSort, Merge Sort is a Divide and Conquer algorithm.
It divides the input array into two halves, calls itself for the two halves, and then it merges the two sorted halves.
The merge() function is used for merging two halves.
About the Project
The java project below covers all of the necessary and vital elements that can be used for college projects by first-year, second-year, and final-year IT students.
The project is entirely written in Java and built in the Netbeans code editor.
Project Details and Technology
Project Name: | Merge Sort Java Program with Source Code |
Abstract | One of the most efficient sorting algorithms is Merge Sort Java Program. It operates on the divide-and-conquer premise. A list is continuously broken down using merge sort. |
Language/s Used: | Java |
Java version (Recommended): | 8 |
Database: | N/A |
Type: | Desktop Application |
Developer: | sourcecodehero |
Updates: | 0 |
To start executing a Merge Sort Java Program, make sure that you have NetBeans IDE or any platform code editor installed on your computer.
Java program for merge sort: Follow the steps below
Time needed: 3 minutes
- Step 1: Download Source Code
To get started, find the downloaded source code file below and click to start downloading it.
- Step 2: Extract File
Navigate to the file’s location when you’ve finished downloading it and right-click it to extract it.
- Step 3: Run the project
Next, open NetBeans IDE and click open project and choose your download.
- Step 4: Run the project.
Next, right click the project folder and click run.
Download the Source Code below
Summary
For those Web developers interested in learning more about web apps, this system is a fully functional project.
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Inquiries
If you have any questions or comments on the project, please leave a comment below.