Whenever we declare a class we need to provide its access level so that JVM can know whether inheritance or instantiation can happen in the program and what is the scope of the class. For this we use access modifiers and these can be used with class, methods and variables etc.. Private access modifier restricts the method or variable access to the class only; that means the method or variable can be accessed within the same class only. Protected access modifier allows access to the class and any subclass of that class, including classes in other packages. Final access ... Read More

PHP (Hypertext Preprocessor): PHP (Hypertext Preprocessor) is a widely-used open-source server-side scripting language that is specifically designed for web development. It was originally created by Rasmus Lerdorf in 1994 and has since evolved into a powerful language used by millions of developers worldwide. PHP is primarily used to develop dynamic web pages and web applications. It allows developers to embed PHP code within HTML, making it easy to mix server-side logic with the presentation layer. PHP scripts are executed on the server, and the resulting HTML is sent to the client's browser. How to Read any Request Header ... Read More

Python is a very commonly used program used for different purposes like Web Development, Data Science, Machine learning and also to perform different processes with automation. While working on any field of application we have to work on one common thing called string. So in this article we are going to learn how to remove unwanted characters from string. Replacement In this method we simply specify the unwanted element and then that element is removed and an empty place is present in the string. We can understand it in a more better way through the following example Example def unwanted_string_words(data, ... Read More

Python is a very widely used platform for the purpose of web development, Data Science, Machine Learning and also to perform different processes with automation. We can store our data in python in different data types such as List, Dictionary, Data Sets. The data and information in python dictionary can be edited and changed as per our choice The below article will provide information on different methods to remove duplicate dictionaries in a list. The option of directly selecting the duplicate dictionaries is not available and thus we will have to use different methods and features of python to remove ... Read More

A software design pattern that is frequently used in Java programming to maximize the utilization of objects is called the Object Pool Design Pattern. The pattern controls how items are created and destroyed in a pool. The management of object production and destruction is done using the Object Pool Design Pattern. The concept behind the pattern is to accumulate reusable objects rather than making new ones each time one is required. For circumstances when the cost of producing new objects is significant, such as in network connections, database connections, or costly objects, Java programmers frequently employ the Object Pool Design ... Read More

Dictionary is a very commonly used feature of python which is used to store data within it as per user need. Another typical procedure involves editing or manipulating this data. To become a productive and quick programmer, you have to figure out how to get rid of a dictionary from a list of dictionaries. There are many techniques for removing a dictionary from the list of dictionaries, which are going to be covered in this article. Different Methods to Remove Dictionary from List of Dictionaries Loop Method We will specify the dictionary which is to be removed from the list ... Read More

In order to ensure that requests are properly handled, developers often use filters to prepare, and post-process them. These objects can perform all sorts of useful operations such as input validation, conversion, logging, compression, encryption, and decryption. What's particularly great about servlet filters is how easy they are to manipulate: as pluggable entities defined by the web.xml file, removing or adjusting filters is as simple as deleting an entry from the code base. This streamlined process means lower costs for maintenance. Usage of Filter The validation of data becomes critical when it holds inherent importance in business operations. It ... Read More

Python is widely used software which has many different purposes of use and a huge variety of feature to perform different tasks. One such useful feature of python is the list feature which help to collect and store different data but many−a−times the user face an issue in removing the sublists which are already present in another sublist. So, in this article we are going to learn how to remove the different sublist that are already present in other sublist. To understand the problem clearly let’s take an example where we have to remove the sublists whose data already exists ... Read More

Let's start by talking about the need for migration. Accordingly, from January 2019, enterprises will have to buy commercial licenses (i.e, from Oracle) to obtain software upgrades, as oracle declared in the year 2018. maintain oracle java, update to the most recent patch level, and pay the membership fees. You may get a sense of the price by knowing that each server core needs to be licensed, and each core costs US $25 per month. Additionally, even if there is only one Java Server in the cluster, the license price would apply to all "cores" of the server if it ... Read More

Regex stands for Regular Expression. A pattern may be defined using regex as an API to search or modify the Text. It is frequently employed to specify string constraints, including passwords, and email validation. Once you understand this term, you might use regex to evaluate your regular expressions. Java Regex provides three classes and one interface in java.util.regex package namely, MatchResult Interface, Matcher class, Pattern class, PatternSyntaxException class. The Java regex feature is offered via the matcher and pattern classes. Meta Characters in Java Regex Meta Characters in Java Regex works as a short code for common matching patterns. ... Read More