Month: August 2023

Java MCQ

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In this post, you can test your knowledge of Java fundamental concepts. What is Java? a) Database b) Operating System...

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Microservices MCQ

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This post contains a few useful Microservices (MCQ) multiple-choice questions (quiz) to self-test your knowledge of Microservices and Spring Cloud....

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REST API MCQ

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Are you familiar with REST APIs and want to test your understanding? This post contains a few useful REST API...

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Free Online URL Encoder

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The Online URL Encoder Tool is a simple utility that allows users to encode URLs or strings so that they...

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Free Online JWT Decoder

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The Online JWT Decoder is a web-based utility that allows users to decode JSON Web Tokens (JWT). By pasting a...

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Free Online JWT Generator

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The Online JWT Generator is a simple and user-friendly tool that allows developers and users to generate JSON Web Tokens...

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Free Online CSS Formatter

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The Online CSS Formatter is a web-based tool designed to help developers beautify and format their CSS code, enhancing readability....

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Free Online JSON Viewer

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The Online JSON Viewer is a tool that allows users to visualize and format JSON data. Users can input raw...

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Free JSON Parser Online

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The Online JSON Parser is a web-based tool that allows users to input JSON strings, view them in a structured...

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Free Online HTML Formatter

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An Online HTML Formatter is a web-based tool that processes HTML code to present it in a well-structured and readable...

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Free Online SQL Formatter

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The Online SQL Formatter is a web-based tool designed to help users format and beautify their SQL code. By presenting...

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Free Online HTML Compiler

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The Online HTML Compiler tool provides users with an intuitive and efficient way to instantly visualize HTML code. By rendering...

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@GetMapping Spring Boot Example

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Spring @GetMapping example shows how to use @GetMapping annotation to map HTTP GET requests onto specific handler methods. @GetMapping Overview @GetMapping annotation maps HTTP GET...

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Map() vs flatMap()

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Difference between Map() and flatMap() in Java Features Map() flatMap() Stream Processing It processes a stream of values It processes...

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Collections vs Streams

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Difference between Collections and Streams in Java Features Collections Streams Main Use Collections are primarily used for storing and grouping...

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ArrayList vs Vector

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Difference between ArrayList and Vector in Java Features ArrayList Vector Thread Safety ArrayList is not thread safe Vector is thread...

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Iterator vs ListIterator

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Difference between Iterator and ListIterator in Java Features Iterator ListIterator Traversal of Types Can traverse List, Set and Queue type...

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HashMap vs HashTable

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Difference between HashMap and HashTable in Java Features HashMap HashTable Synchronization Not synchronized (not thread safe) Internally synchronized (thread safe)...

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HashSet vs HashMap

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Difference between HashSet and HashMap in Java Features HashSet HashMap Interface Implements Set interface Implements Map interface Data Storage Stores...

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Array vs ArrayList

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Difference between Array and ArrayList in Java Array ArrayList Arrays are static in nature. They have fixed length, and their...

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Differences between malloc() and calloc() functions in C

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Let’s create a table summarizing the key differences between malloc() and calloc() functions in C: Aspect malloc() calloc() Syntax void*...

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