Java Articles - Page 142 of 745

In this article, we will learn to implement Bubble Sort using recursion in Java. Our goal is to understand how recursion can be applied to the Bubble Sort algorithm to achieve the same sorting effect as its iterative counterpart. Problem Statement Write a Java program to sort an array of integers using the recursive approach of Bubble Sort. Input my_arr[] = {45, 67, 89, 31, 63, 0, 21, 12} Output The array after implementing bubble sort is[0, 12, 21, 31, 45, 63, 67, 89] Bubble Sort Algorithm Bubble sort algorithm is a simple sorting algorithm to sort elements. ... Read More

In this article, we will learn to calculate the area of a Tetrahedron using Java. A tetrahedron is a type of polyhedron that consists of four triangular faces. What is a tetrahedron? A tetrahedron is a three-dimensional polyhedron with four triangular faces, six edges, and four vertices. If all its faces are equilateral triangles, it is called a regular tetrahedron. The surface area of a regular tetrahedron can be calculated using the formula − 𝐴 = sqrt{3} . s^2 Where A is the surface area, where s is the length of a side of the tetrahedron. Calculating the Area of ... Read More

An array is a linear data structure that is used to store a group of elements with similar datatypes. It stores data in a sequential manner. Once we create an array we can't change its size i.e. it can store a fixed number of elements. The array comes with a vast application and use case. Also, we can perform numerous operations on arrays. This article will help you to understand the basics of arrays and also, we will make java programs to perform right and left rotation operations on arrays. Java Program for Array Rotation First, let's understand the term ... Read More

In this article, we will learn how to print a sequence of numbers in Java, ranging from 0 to 15. To do this, we'll use recursion rather than using loops like for loop or while loop. Recursion is a programming technique where a method calls itself to perform a sub-operation as necessary. Problem Statement Write a Java program to print Number series without using any loop Output The numbers without using a loop have been printed below0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, Java program to print number series without using ... Read More

Following is the Java program for largest K digit number divisible by X −Example Live Demoimport java.io.*; import java.lang.*; public class Demo{    public static int largest_k(int val_1, int val_2){       int i = 10;       int MAX = (int)Math.pow(i, val_2) - 1;       return (MAX - (MAX % val_1));    }    public static void main(String[] args){       int val_1 = 25;       int val_2 = 2;       System.out.println("The largest 2 digit number divisible by 25 is ");       System.out.println((int)largest_k(val_1, val_2));    } }OutputThe largest 2 ... Read More

In this program, we find the length of the longest increasing subsequence (LIS) in an integer array using Java programming language. An increasing subsequence is a sequence of numbers where each number is greater than the previous one. The program uses a dynamic programming approach to compute the longest increasing subsequence efficiently. This technique involves building a solution using previously computed results. Problem Statement Write a Java program to get the length of the longest increasing subsequence − Input 10, 22, 9, 33, 21, 50, 41, 60 Output The length of the longest increasing subsequence is 5 Steps get ... Read More

Following is the Java program for Longest Common Subsequence −Example Live Demopublic class Demo{    int subseq(char[] a, char[] b, int a_len, int b_len){       int my_arr[][] = new int[a_len + 1][b_len + 1];       for (int i = 0; i

Following is the Java program to print Triangle pattern −Example Live Demoimport java.util.*; public class Demo{    public static void main(String[] args){       Scanner my_scan = new Scanner(System.in);       System.out.println("Enter the number of rows which needs to be printed");       int my_row = my_scan.nextInt();       for (int i = 1; i = i; j--){             System.out.print(" ");          }          for (int j = 1; j

Following is the Java program to print integer between Strings −Example Live Demopublic class Demo{    public static void main(String[] args){       System.out.println("The equals symbol is present between two integer values ");       System.out.println(45+5 + "=" +(56+11));       System.out.println(45+5 + " equals symbol " +(56+11));    } }OutputThe equals symbol is present between two integer values 50=67 50 equals symbol 67A class named Demo contains the main function that prints integer values between two strings.

Following is the code to rename multiple files using Java −Exampleimport java.io.File; import java.io.IOException; public class Demo{    public static void main(String[] argv) throws IOException{       String path_to_folder = "path\to\folder\where\multiple\files\are\present";       File my_folder = new File(path_to_folder);       File[] array_file = my_folder.listFiles();       for (int i = 0; i < array_file.length; i++){          if (array_file[i].isFile()){             File my_file = new File(path_to_folder + "\" + array_file[i].getName());             String long_file_name = array_file[i].getName();             String[] my_token = long_file_name.split("\s"); ... Read More