Introduction Creating a HashMap in Java Accessing Elements in HashMap Iterating Through a HashMap Key Features of HashMap In Java, a `HashMap` is used to store data in key-value pairs. It belongs to the `java.util` package and provides fast access to elements using keys. In this article, we will learn how to create, insert, …
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I explored how to perform basic file handling in Java using FileReader and FileWriter. This article explains both reading and writing operations step-by-step with code examples and output. -Introduction – Writing to a File using FileWriter – Reading from a File using FileReader – Conclusion – Note File handling is an essential part …
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Bubble Sort Quick Sort Merge Sort Sorting Sorting is the process of arranging elements in a particular order — either ascending or descending. It is one of the most common operations performed on arrays in programming. Sorting helps in: Searching faster Understanding data patterns Improving performance of other algorithms Bubble Sort in Java Bubble Sort …
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Recursive Method in Java Recursive Method in Java I have implemented the Binary Search algorithm in both iterative and recursive ways. This post explains the concept of Binary Search with easy-to-understand steps and working Java code examples. The goal is to help beginners learn how Binary Search works and how to implement it practically in …
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Here’s the high-quality tutorial; it’s clear,beginner-friendly, and demonstrates how to find the number of variables in a Python program using a function. How to Find the Number of Variables in a Python Program Using a Function When working on larger Python projects, it’s often useful to analyze your code– for example, to count how many …
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How to Rotate a PDF File Using Python Rotating a PDF file using Python is a straightforward task thanks to libraries like PyPDF2 and PyPDF4.These libraries allow you to manipulate PDF files, such as merging, splitting, and rotating, without requiring external software. This tutorial describes how to rotate individual pages or the entire PDF file …
In this tutorial we will learn that how to handle a user input in flask web app. our goal is to let users submit their name and email through a form. Here when the user submits the form first the app will check if the input are valid -note that fields should not be empty …
In this tutorial we create a basic login form using Flask and Python. The form takes a username and password, checks the input against a hardcoded value, and displays a success or failure message based on whether the login is correct. This is a great starting point for understanding how authentication works in web apps. It …
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Learn how to find and fix missing data in a Pandas DataFrame. Using simple methods like .isnull(), .isna(), fill missing values, or remove them to keep your data clean. Creating a DataFrame by loading csv file We can create DataFrame by loading csv file The given fruits1.csv file has missing values. Kindly observe the missing/NaN …
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Hello Internet, today I am going to teach you how to work with python’s built-in-map and filter Function. When working with lists or other iterable data structures in Python, we often need to perform operations on every item or extract only the items that meet a certain condition. While loops and list comprehensions are popular …
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