Recent Posts

  • A Gentle Guide to Socket in Java

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    What is Socket? A socket is an interface to send and receive data in two programs on the network in a bidirectional manner. In other words, a socket represent one […]

  • How to configure Tomcat Server to Run Web Application on IntelliJ IDEA

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    In this article, we are going to learn how to configure the Tomcat server to run a simple “Hello World” application on the web browser with JSP and Servlet (i.e […]

  • What is tail recursion?

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    In many functional programming languages such as Haskell or Scala, tail recursion is an interesting feature in which a recursive function calls itself as the last action. For example, we […]

  • Different ways to Iterate any Map in Java

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    1. Using entrySet() The Map.entrySet() returns a collection view Set<Map.Entry<K, V>> of the mappings in this map. To iterate over a map, we can use the getKey() method to get […]

  • Call by Name vs. Call by Value in Scala

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    Substitution Model In Scala, expressions are evaluated based on the substitution model, the idea is that all evaluation does is reduce an expression into a single value like what we […]

  • Quicksort algorithm – Lomuto partition scheme

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    There are a multifarious number of sorting algorithms have been proposed and being used nowadays. Perhaps you’re already familiar with some sorting algorithms such as Bubble Sort, Selection Sort, or […]

  • char *, const char *, const * char, and const char * const in C

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    Not really straight like many high languages such as JavaScript, or Java, working with Strings in C is not so easy-as-pie and sometimes it’s kind of confusing. There are some […]

  • An array of pointers and A pointer to an array in C

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    A pointer in C simply is just a variable holding address in the primary memory of another variable, a pointer shouldn’t be dreaded like people usually think. However, there are […]

  • 905. Sort Array By Parity – In-place Solution | LeetCode Problem

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    Given an array A of non-negative integers, return an array consisting of all the even elements of A, followed by all the odd elements of A. You may return any answer array that satisfies […]

  • Runnable and Callable in Java

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    In the early days of Java programming, whenever you want to create a thread, usually you would need the help of whether extending the Thread class or implementing the Runnable […]

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