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Object Oriented Programming Articles
Page 41 of 588
Java Program for Cocktail Sort
In this article, we will learn to perform cocktail sorting in Java. Cocktail Sort, also known as Bidirectional Bubble Sort, is a variation of the standard Bubble Sort algorithm. What is Cocktail Sort? Cocktail Sort works in contrast to bubble sort, wherein elements are iterated from left to right, and the largest element is first brought to its correct position, and so on. In cocktail sort, elements are iterated over in both directions (left and right) in an alternating fashion. Cocktail Sort Working Following are the steps to perform cocktail sort in Java − Traverse ...
Read MoreHow to set a String as a key for an object - JavaScript?
In JavaScript, it is common to use a string as a key for an object, especially when you want to dynamically create or change the properties of the object. Objects are fundamental data structures that allow you to store collections of data in key-value pairs. You can use strings as keys directly. It is a simple and straightforward method. This article will guide you how to use a string as a key for an object. Setting a String as a Key for an Object You can set a strings as a key for an object using bracket notation. The ...
Read MoreHow to find specific words in an array with JavaScript?
Finding specific words in an array is a common task in JavaScript, especially when you need to filter data, search through lists, or analyze text. An array is a simple and fundamental data structure in JavaScript that stores multiple values of the same data type. JavaScript has several built-in methods, like includes(), filter(), and find(), that help you search for specific words easily. This article will explain these methods with examples. Finding Specific Words in an Array Finding specific words in an array can be done in the following ways: Using includes() method Using filter() method Using find() ...
Read MoreHow to autofill a field in JavaScript same as another?
Automatically filling in a field in JavaScript is a common need in web forms, where one field copies the value from another. This feature eliminates the need to write the same information in one or more fields. This is useful in real-life scenarios, such as filling in the forms where the user has entered the permanent address and has to add a temporary address. If both the addresses are the same, using the autofilling feature, he can automatically copy the permanent address into the temporary address. This article explains how to create autofill features in JavaScript. Core Concept: Copying ...
Read MoreHow to add, access JavaScript object methods?
Adding and accessing object methods are common tasks in JavaScript. JavaScript objects are collections of properties and methods, and the JavaScript methods are functions associated with objects. JavaScript provides various features and ways to add and access object methods. In this article, we will understand how to add or access object methods in JavaScript. Understanding JavaScript Object Methods JavaScript methods are functions associated with objects. They allow objects to perform actions, which is important for creating dynamic and interactive programs. Methods in objects are functions that work with the object's properties. This helps make programming more organized and efficient. ...
Read MoreHow to create an array of Object in Java
In this article, we will learn to create an array of objects in Java. An array of Object classes can be created that can accept any type of object. During the operation on such an array, instanceof operator can be used. Different Approaches The following are the two different approaches to creating an array of objects in Java − Using an Object[] Array Using a Class-Specific Object Array Using an Object[] Array Java provides a built-in Object class, which is the superclass of all classes. This means an array ...
Read MoreJavaScript RegExp return values between various square brackets? How to get value brackets?
Extracting values between various square brackets can be done using JavaScript regular expressions. The regular expressions in JavaScript are useful for extracting values enclosed within different types of brackets, such as square brackets ([ ]), curly brackets ({ }), and parentheses "( )". In this article, we'll look at how to use JavaScript's RegExp to find and get content that is inside square brackets easily. Understanding JavaScript RegExp Regular expressions (RegExp) are patterns used to match and manipulate strings in JavaScript. JavaScript RegExp helps you find and get text that is inside specific brackets by using patterns. The ...
Read MoreCall a function with onclick() – JavaScript?
The onclick event is a useful feature for calling a function in JavaScript. The onclick event allows you to execute a function when a user interacts with an element, such as clicking a button. This article will guide you on how to use the onclick event to call a JavaScript function. What is Onclick Event? The onclick event is triggered when a user clicks on an HTML element. It is commonly used to execute a JavaScript function or a block of code in response to a mouse click on an HTML element, such as a button, link, or any ...
Read MoreJavaScript checking if all the elements are same in an array
In this article, we will learn to check if all the elements are the same in an array in JavaScript. Finding all elements of an array to be the same is a frequent problem in JavaScript, usually needed for data validation, game logic, and algorithm building. Problem Statement We are required to write a JavaScript function that takes in an array of literals. The function should find whether or not all the values in the array are the same. If they are the same, the function should return true, or false otherwise. For Example Input const arr2 = [1, 1, ...
Read MoreJava DatabaseMetaData getURL() method with example
In this article, we will learn about the DatabaseMetaData getURL() method in Java. The DatabaseMetaData interface provides useful methods to obtain details about the database and the JDBC driver. One such method is getURL(), which returns the URL of the JDBC driver being used. What is the getURL() Method? The getURL() method in Java's DatabaseMetaData interface is used to retrieve the URL of the database to which the current connection is established. Syntax String dbUrl = metaData.getURL(); This method retrieves the URL of the underlying Database Management System and returns it in the form of a String variable. ...
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