Web scraping is the process by which we extract data from the websites. If you are a programmer then you can write complete code to scrape data as per your needs. Different programming languages like Python or JavaScript can be used along with their libraries i.e., selenium and puppeteer to scrape information from the websites. …
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Unicode and ASCII are now the two-character encoding systems that are most extensively used worldwide. We can process, share and store text in any language through unicode encoding, as opposed to ASCII, which is used to represent text in computers as symbols, characters, and numbers. What is ASCII? American Standard Code for Information Interchange is …
What is new? New is a keyword in c++ and it is a type of memory allocator which is responsible for allocating memory in a dynamic way. The heap memory is allocated by this operator and it shares the beginning address of the memory assigned to a certain variable. The working of the new keyword …
The base class pointer can point to both base class & derived class objects. Although, it cannot change the values present in the derived class. Let us see some code examples for the explanation. Code: Output: Code Explanation: In the above code, we have created a class named as Base_Class_Details. Now we created 2 variables …
Vector comes under STL. It can be termed as a dynamic array i.e, we can add or remove elements in vectors even in runtime. This flexibility with values is not possible in the arrays. Vectors aren’t ordered in increasing or decreasing order, although they can be easily accessed by iterators. There are different ways through …
Dynamic initialization states that we are initializing the objects at the runtime. Since we use constructors to initialize everything, here we are going to use dynamic constructors. Here is an example of dynamic initialization: Output: This dynamic initialization can help us to create different constructors having the same function name but different parameters. If you …
We can pass objects as arguments in member or non member functions. They can be passed either by value or reference. Pass by value creates another copy of the particular object which is deleted after the function is ended. Pass by reference means that we are passing the same object as a reference so if …
It is an open source library in java built for logging error messages in applications including networks, cloud computing services. This library has been used in many java programs designed for server as well as client applications. What is Log4Shell in Log4j? Log4Shell is a vulnerability that affects the core function of log4j. This allows …
