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Articles on Trending Technologies
Technical articles with clear explanations and examples
Binarization of Digital Images Using Otsu Method in MATLAB
In digital image processing, the process of transforming a color image or a grayscale image into a binary image is referred to as binarization of the image. In a binary image, the image pixels are represented using binary values i.e., 0 and 1, where 0 represents the black pixel and 1 represents the white pixel. Binarization is an efficient technique to simplify the image analysis and it also helps in extracting important characteristics of the image. Process of Binarization of Digital Images The process of binarization of a digital image is based on the use of a threshold value to ...
Read MoreHow To Count Number Of Leap Years Between Two Dates In Excel?
Excel is a powerful tool that is commonly used to manipulate and analyze data, including dates. One common task is to determine the number of leap years between two given dates. Leap years occur every four years, with the exception of years that are divisible by 100 but not by 400. This can make calculating leap years a bit tricky, but fortunately, Excel has built-in functions that can help. In this tutorial, we will walk through the steps of how to count the number of leap years between two dates in Excel, using the functions and formulas available within the ...
Read MoreHow to remove Time from Date TypeScript?
When working with date objects in TypeScript, sometimes it's necessary to extract only the date and remove the time component from it. This can be useful when displaying dates in a user interface or comparing dates. In this tutorial, we will explore several ways to remove time from date in TypeScript. Syntax const dateWithoutTime = date.toLocaleDateString(); const dateWithoutTime = date.toISOString().split('T')[0]; The above is the syntax of two different typescript methods for removing time from date. The first method uses the toLocaleDateString() method. The second method uses this string () method. Example 1: Using the toLocaleDateString() Method const date = ...
Read MoreShow Data Using Text Box in TypeScript
Data representation is crucial in software development, and it is essential to present data in a user-friendly way with the increasing demand for web-based applications. Text boxes are one of the ways to do so. Text boxes provide an easy way to display data to users in a structured and presentable way. This tutorial will provide a comprehensive guide on using text boxes in TypeScript to show data effectively. We will cover what text boxes are, provide syntax and algorithms for working with text boxes, and give multiple examples to illustrate how to use text boxes. What are Text Boxes ...
Read MoreHow to Use Lambda Expression in TypeScript?
Lambda expressions offer a succinct and expressive means of defining functions in TypeScript and are versatile enough to be utilized as class methods, object properties, and callbacks in higher-order functions. This tutorial aims to delve into the syntax of lambda expressions, highlight their advantages over conventional functions, and provide guidance on how to use lambda expressions in TypeScript effectively. What are Lambda Expressions? Lambda expressions, commonly referred to as arrow functions, were first introduced in ECMAScript 6 and have gained widespread usage in contemporary JavaScript and TypeScript code. These expressions provide a succinct syntax for defining functions in both languages. ...
Read MoreHow to Convert Epoch Time to Date in SQL?
Introduction The epoch is the date and time relative to which a computer's clock and timestamp values are determined. Epoch time is commonly used in computer systems to represent a point in time. It is typically represented as a single integer value, which represents the number of seconds that have elapsed since the epoch. In SQL, you can convert an epoch time value to a date by using the to_timestamp() function. This function converts an epoch time value (which is typically stored as a BIGINT or INT data type) to a timestamp with time zone value. The resulting timestamp value ...
Read MoreBasic Concepts of Object Oriented Programming using C++
Object oriented programming is a type of programming which uses objects and classes its functioning. The object oriented programming is based on real world entities like inheritance, polymorphism, data hiding, etc. It aims at binding together data and function work on these data sets into a single entity to restrict their usage.Some basic concepts of object oriented programming are −CLASSOBJECTSENCAPSULATIONPOLYMORPHISMINHERITANCEABSTRACTIONClass − A class is a data-type that has its own members i.e. data members and member functions. It is the blueprint for an object in object oriented programming language. It is the basic building block of object oriented programming in ...
Read MoreHow can we read a JSON file in Java?
The JSON is one of the widely used data-interchange formats and is a lightweight and language independent. The json.simple is a lightweight JSON processing library that can be used to read and write JSON files and it can be used to encode or decode JSON text and fully compliant with JSON specification (RFC4627). In order to read a JSON file, we need to download the json-simple.jar file and set the path to execute it.json fileExampleimport java.io.*; import java.util.*; import org.json.simple.*; import org.json.simple.parser.*; public class JSONReadFromTheFileTest { public static void main(String[] args) { JSONParser parser = new JSONParser(); try { ...
Read MoreWhat are the components of DBMS?
Hardware, Software, Data, Database Access Language, Procedures and Users all together form the components of a DBMS.Let us discuss the components one by one clearly.HardwareThe hardware is the actual computer system used for keeping and accessing the database. The conventional DBMS hardware consists of secondary storage devices such as hard disks. Databases run on the range of machines from micro computers to mainframes.SoftwareSoftware is the actual DBMS between the physical database and the users of the system. All the requests from the user for accessing the database are handled by DBMS.DataIt is an important component of the database management system. ...
Read MoreHow to select last row in MySQL?
To select the last row, we can use ORDER BY clause with desc (descending) property and Limit 1. Let us first create a table and insert some records with the help of INSERT command. The query is as follows. mysql> create table getLastRecord -> ( -> Id int, -> Name varchar(100) -> ); Query OK, 0 rows affected (0.61 sec) After creating the above table, we will insert records with the help of INSERT command. mysql> insert into getLastRecord values(1, 'John'); Query OK, 1 row affected (0.13 sec) ...
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