Programming Articles - Page 33 of 2501

In this article we will be creating the multi tabbed Notebook Graphical user interface with the help of Python GTK + 3. So we will be creating a window which will look like a notebook. Understanding the Problem The problem at hand is to create a notebook using Python GTK + 3. If the GTK + 3 package is not installed on your system then we can install this package with the help of command ‘pip install pygobject’ or using ‘MSYS2’ packages in windows. So we will create a window and inside the window there will be two tabs or ... Read More

In this article, we are required to perform the move operation using the move function which is a built-in function in wxPython. And ‘wxPython’ is basically a GUI library of Python. What is wxPython? As we know that Python provides many libraries for developers to improve the code and minimize the time to develop an application so wxPython is also one of them. The wxPython is a toolkit for developing a graphical user interface (GUI) in python. With the help of this library the developers can create GUIs with a native look and feel. And the application can be performed ... Read More

In the realm of data science, one of the important aspects that we need to consider is handling large datasets. Handling such vast volumes of data is really a challenge when it comes to memory management and Speed of execution. Vaex is a Python library that is designed specifically to solve such problems. It is particularly useful for Out-of-Core Data Frames that are lazy (like Pandas) because calculations are only performed when it is necessary. It offers good solutions in terms of Big data analysis, manipulation, and visualisation. We will explore the idea of Vaex, its features, and how to ... Read More

Spring is a highly popular framework within the Java EE ecosystem. It is an open-source and lightweight framework that empowers Java developers to build reliable, scalable, and simplified business applications. The primary goal of this framework is to offer you a variety of tools for managing your business items. In contrast to conventional Java frameworks and APIs such as JSP, JDBC and Java Servlet, developing web applications is far simpler. In Spring, objects—primarily those controlled by the Spring IoC Container. It plays a significant role in the application. A Bean is nothing more than an object that a Spring Ioc ... Read More

In Java, a class is a fundamental component of object-oriented programming. It serves as a blueprint or template for defining the structure and behavior of objects. A class contains both data, represented by fields or variables, and behaviors, represented by methods or functions, which manipulate that data. In Java, a custom class is a user-defined class that allows you to create objects with specific properties and behaviors tailored to your application's requirements. It serves as a blueprint or template for creating objects of that class type. Custom classes encapsulate related data and operations into a single entity, promoting code organization, ... Read More

In this problem statement we have to move all the files in the folder with the name of creation and modification date directory with the help of Python. In this task we will use some predefined libraries of Python for smooth processing of relocating the files. Understanding the Problem As we have seen, managing the files as per the date or modification and creation time. So here in this article we will simplify this task by creating the Python script to move the files as per the creation and modification dates by giving the folder name as the modification or ... Read More

Program in Text and XML Format? In Java, a project's properties file is made up of text-based key-value pairs that are commonly stored with the .properties extension. The key-value pair of contents are presented line by line, and they are often created using notepad, Wordpad, etc. Properties files serve as valuable repositories for storing critical and confidential data. In this article, we will explore the process of creating a properties file using a Java program. The Properties class in this (java.util.Properties) package offers multiple utility store methods that facilitate the storage of properties in either Text Format or XML ... Read More

In this article, we will see what are the possibilities available to create thread-safe HashSet instances and see what will be equivalent to ConcurrentHashMap for HashSet. We will also look at the benefits and drawbacks of each approach. Before JDK8 we are not able to create a Thread Safe ConcurrentHashMap because  java.util.concurrent package in JDK8 does not provide a class named ConcurrentHashSet, two new methods were added that are discussed below. ConcurrentHashMap is the Map implementation that allows us to modify the Map while iterating. The ConcurrentHashMap operations are thread-safe. ConcurrentHashMap doesn't allow null for keys and values. Ways to ... Read More

In this article we will learn how to modify equal tuple rows with the help of Python programming. Whenever we talk about data, sometimes we need to modify that data also. So here we will modify equal tuple rows data as per the equality of the records. Understanding the Problem The problem at hand is to modify the given tuple for equal rows using python. So we will be having a list of tuples and our task is to modify as per the condition for the particular tuple row in the given list. Let's see the usage of the following ... Read More

The files are very important documents in our systems. In files we store our important data and moving these files is also an important task to organize the system. So we will learn how to move and also overwrite the files and folders using Python modules. Understanding the Logic for the Problem The problem at hand is that we have to create a code for moving and overwriting the files and folders in Python. For solving this problem we will import os and shutil libraries of Python. So with the help of these libraries we can move and overwrite the ... Read More