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Python supports a feature known as multiple inheritance, where a class (child class) can inherit attributes and methods from more than one parent class. This allows for a flexible and powerful way to design class hierarchies. To manage this, Python provides the super() function, which facilitates the calling of methods from a parent class without explicitly naming it. Understanding Multiple Inheritance In multiple inheritance, a child class can derive attributes and methods from multiple parent classes. This can be particularly useful in scenarios where you want to compose behavior from different sources. Example In the following example, the Child class ... Read More
In Java Inheritance is a fundamental feature that allows a class to derive properties and behaviors from another class. In Java, not all classes can be subclassed. A final class is a special type of class that cannot be extended. What is a Final Class in Java? In Java, a class is declared final using the final keyword. The final modifier for finalizing the implementations of classes, methods, and variables. When a class is marked as final, it means − It cannot be extended. All its methods remain unchanged in their ... Read More
In Java, local variables are those that have been declared within a method, constructor, and block, and are only accessible within that defined scope. Such local variables are used when there is a need to store temporary data during the execution of a program. What is a Local Variable? Local variables are declared in methods, constructors, or blocks. Local variables are created when the method, constructor, or block is entered and the variable will be destroyed once it exits the method, constructor, or block. A local variable is a variable that is − Declared inside ... Read More
In this article, we will learn the ResultSetMetaData getScale() method in Java. The ResultSetMetaData interface provides metadata about the columns in a ResultSet object. The getScale() method returns the number of digits to the right of the decimal point for a specified column. What is the getScale() method? The getScale() method of the ResultSetMetaData (interface) retrieves the number of digits after the right of the decimal point in the given column. This method accepts an integer value representing the index of a column. and returns an integer value representing the number of digits after the decimal in the specified column. Syntax ... Read More
In this article, we will learn about the DatabaseMetaData getDriverName() method in Java. The DatabaseMetaData interface provides useful methods to obtain details about the database and the JDBC driver. One such method is getDriverName(), which returns the name of the JDBC driver being used. What is getDriverName() in Java? The getDriverName() method belongs to the DatabaseMetaData interface in Java's JDBC API. It retrieves the name of the JDBC driver currently connected to the database. Syntax String driver_name = metaData.getDriverName(); The method returns the following values − Returns a String representing the name of the ... Read More
In this article, we will learn the regex program to display names to be only numbers, letters, and underscores In Java. Validating user input is essential for maintaining data integrity and security in web applications. JavaScript Regex for Name Validation Regular expressions regex is probably more powerful in defining patterns to search for in the text validations. A typical validation is confirming a name consists of only letters (A-Z, a-z), digits (0-9), and underscore (_). To ensure that a name contains only letters we can use the following regex − /^\w+$/ ^: Start of the string ... Read More
Python has become one of the most popular programming languages, renowned for its versatility and extensive libraries. When it comes to automating web tasks, Python offers a powerful tool called Selenium. Selenium allows us to interact with web browsers programmatically, making it an excellent choice for automating tasks like retweeting tweets on platforms like Twitter. By using both Python and Selenium, we can streamline our web browsing experience and effortlessly engage with the content we find interesting. In this tutorial, we will explore the fascinating world of retweeting tweets using Selenium in Python. Throughout the article, we will guide you ... Read More
Python has emerged as one of the most popular programming languages for web scraping, thanks to its rich ecosystem of libraries and tools. Two such powerful libraries are Selenium and Beautiful Soup, which, when combined, provide a robust solution for scraping data from websites. In this tutorial, we will delve into the world of web scraping with Python, specifically focusing on scraping LinkedIn using Selenium and Beautiful Soup. In this article, we will explore the process of automating web interactions using Selenium and parsing HTML content with Beautiful Soup. Together, these tools enable us to scrape data from LinkedIn, the ... Read More
In today's digital era, where text messaging has become an integral part of our lives, dealing with SMS spam has become an ongoing challenge. The relentless influx of unwanted and unsolicited messages disrupts our daily routines and poses risks to our privacy and security. To address this issue, machine learning techniques have proven to be effective tools. Among them, TensorFlow, a widely adopted open−source library for deep learning, offers a robust framework for developing advanced models. In this article, we will explore the realm of SMS spam detection and discover how TensorFlow, in conjunction with the versatile programming language Python, ... Read More
Introduction The distribution of data gives us useful insights into the data while working with any data science or machine learning use case. Data Distribution is how the data is available and its present condition, the information about specific parts of the data, any outliers in the data as well as central tendencies related to the data. To explore the data distribution there popular graphical methods that prove beneficial while working with the data. In this article let us explore these methods. Know more about your data: The Graphical Way Histograms & KDE Density Plots Histograms are the most ... Read More