Java Program for Pattern
Reading Time: 4 minutesIntroduction: The Java program is designed to print a right-angled triangle made of stars. The number of rows in the triangle is adjustable, allowing users to control the size of the pattern. Algorithm: Class Definition: The program begins with the definition of a class named StarPattern. Main Method: The main method is the entry point […]
Java Program for Armstrong number
Reading Time: 7 minutesIntroduction: The provided Java program is designed to determine whether a given number is an Armstrong number or not. An Armstrong number, also known as a narcissistic number, is a number that is equal to the sum of its own digits each raised to the power of the number of digits in the number. This […]
Fibonacci Java Program
Reading Time: 4 minutesIntroduction : The provided Java program generates the Fibonacci sequence up to a specified number of terms. The Fibonacci sequence is a series of numbers where each number is the sum of the two preceding ones, usually starting with 0 and 1. The user is prompted to input the number of terms they want in […]
Java Program to Reverse a Number
Reading Time: 7 minutesIntroduction: This Java program is designed to reverse the digits of a given integer. It prompts the user to input a number, then uses a simple algorithm to reverse the digits of that number and finally displays the reversed result. Algorithm: Input: The program starts by using the Scanner class to take an integer input […]
Date Java Program
Reading Time: 7 minutesIntroduction: The provided Java program is a simple date validation tool. It prompts the user to input a date in the “dd/mm/yyyy” format, validates the entered date, and then provides feedback on whether the date is valid or not. The validation is done using the SimpleDateFormat class in Java. Algorithm: Import Statements: Import necessary classes […]
Java Program with Constructor
Reading Time: 6 minutesIntroduction: The provided Java program defines a Person class with fields for a person’s name and age. It includes a constructor to initialize these fields and a method to display the person’s information. In the main method, an instance of the Person class is created, and the information is displayed. Algorithm: Class Definition: Define a […]
Java Program with Switch Case
Reading Time: 7 minutesIntroduction: The provided Java program is a simple console-based application that prompts the user to enter a number between 1 and 7. The program then uses a switch case statement to determine the corresponding day of the week based on the user’s input and prints the result. Algorithm: Import the Scanner class to read user […]
Java Program Polymorphism Example
Reading Time: 9 minutesIntroduction: This Java program serves as an example of polymorphism, a fundamental concept in object-oriented programming. Polymorphism allows objects of different types to be treated as objects of a common base type, facilitating flexibility and extensibility in software design. In this example, we have a hierarchy of shapes—Shape, Circle, and Square—to illustrate how polymorphism works. […]
Java Program to Remove Duplicate Elements in an Array
Reading Time: 7 minutesIntroduction: The provided Java program aims to remove duplicate elements from an array using a HashSet. Duplicate elements can be problematic in various scenarios, and having a clean array without duplicates is often necessary. The HashSet data structure is employed to efficiently store unique elements while iterating through the original array. Algorithm: Initialization: Create an […]
Java Program on Array
Reading Time: 8 minutesIntroduction : This Java program, named Array Sum And Average, is designed to calculate the sum and average of elements in an array. It interacts with the user to obtain the size of the array and prompts the user to input the array elements. The program then performs the necessary calculations and displays the sum […]