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In this article, we will learn to mark and reset the current position in a file input stream in Java. Marking the current position in an input stream is a crucial functionality provided by Java’s InputStream class. It enables developers to reset the stream to a previously marked position, facilitating efficient data handling, especially in scenarios like re-reading or backtracking within a file. Key Concepts Following are the key concepts we need to know to mark the current position in this input stream − InputStream Class: The InputStream class is an abstract class that represents ... Read More
The Float wrapper class provides methods to convert a Float object into various numeric primitive data types like short, int, float, and double in Java. This is particularly useful when handling float values and representing them in different numeric forms.This article will show two approaches to convert a Float object to numeric primitive types using the Float class methods. Using Float Wrapper Class Methods In this approach, we use predefined methods of the Float class, such as shortValue(), intValue(), floatValue(), and doubleValue(), to convert a Float object into various primitive types. These methods directly perform the required conversions. ... Read More
In this article, we learn the Connection getTransactionIsolation() method in Java, which allows you to determine a database connection's current transaction isolation level. Transaction isolation levels dictate how transactions interact, particularly regarding data locking during reads or writes. What is the getTransactionIsolation() Method? The getTransactionIsolation() method is part of the Connection Interface in Java. It returns an integer constant representing the current isolation level of the database connection. JDBC provides support for 5 transaction isolation levels through the Connection interface − TRANSACTION_NONE: It is represented by an integer value 0 and does not support transactions. ... Read More
Cloud services like Alibaba Cloud MaxCompute and Amazon Neptune offer powerful capabilities tailored to different needs. While MaxCompute specializes in big data analytics and batch processing, Neptune is optimized for managing highly connected datasets with graph database technology. Understanding their differences can help businesses choose the right solution.What is Alibaba Cloud MaxCompute?Alibaba Cloud MaxCompute is a cloud-based platform designed for processing large-scale datasets. It is ideal for data warehousing, batch processing, and executing complex analytical tasks on structured and semi-structured data. With its SQL-like language, MaxCompute simplifies querying, while its columnar storage ensures high performance for analytical queries.Its key features ... Read More
The words "learned" and "learnt" are both past tenses of the verb "learn, " and but they have the same meaning, how they are used differs by location. In British English and other parts of the world, "learnt" is more common, but "learned" is the preferred form in the US and Canada. The worldwide nature of English can be seen in both variants, which are widely recognized despite the difference.Is it "learned" or "learnt"?The past tense and past participle forms of the verb "learn" are "learned" and "learnt". They can be used equally in both situations, however their usage varies ... Read More
Sometimes while working with objects in JavaScript we want to filter objects based on keys. We can easily do this by using Lodash, a popular JavaScript library that provides several inbuilt functions to achieve this easily. In this article, we are going to discuss how we can Filter Objects by Keys using Lodash. Prerequisite Lodash: Lodash is a popular JavaScript library used to deal with a variety of functions such as arrays, objects, strings, and more. Install Lodash We can install the Lodash library in the project by adding it via CDN or ... Read More
Sometimes, we need to find the beginning and end of the day using MomentJS. This functionality has different real-life applications, such as filtering data within a day’s range, generating daily reports, and scheduling tasks at specific times. In this article, we will discuss how to find the beginning and end of the day using MomentJS. Prerequisite Moment.js: Moment.js is a popular JavaScript library used to deal with dates. This library is used to modify, parse, validate, manipulate, and display dates and times in JavaScript. Install Moment.js We can install the Moment.js library in ... Read More
In this article, we will learn to find three numbers in an array that add up to a given sum value using JavaScript. We are going to write a JavaScript program to find a triplet that sums up a given value. This program will make use of nested loops to iterate over the input array and check for the existence of a triplet with a sum equal to the given value. We'll present two different approaches and analyze their implementations. Sorting and Two-Pointer Technique The first approach uses sorting and the two-pointer technique to solve the problem efficiently. This method ... Read More
In this tutorial, we will discuss two approaches to finding the intersection point of two linked lists in JavaScript. The first approach involves using the loops, and the second approach involves using the difference of nodes technique which works in the linear time. We will be given two linked lists that are not sorted. Note that there is another version of this problem in which we are given a sorted pair of linked lists and have to find the intersection. We have to find the elements after which all the elements in both linked lists are the same. We will ... Read More
In this article, we are going to explore a Javascript program that works with a sorted array containing duplicate elements. The task is to traverse the array using a loop and identify both the index of the last duplicate element and the duplicate number. Introduction to Problem In the given problem we have to find the last duplicate element in a sorted array. Duplicate means the number is present more than one time. Example − Input arr[] = {1, 2, 2, 3, 5, 5, 6, 7} Output Last index: 5 Last duplicate value: 5 From the above given sorted array, ... Read More