Java Serialization and Deserialization Software Engineer Must Know — Overview Serialization in Java is to help change an existing object into a byte stream. Conversely, Deserialization makes a Serialization byte stream an object. By using Serialization and Deserialization in Java the information of objects can be transported from one JVM to another. Let’s go to the details of the article…

Better understand about optional in Java for Software Engineer — Overview In this article I will introduce the Optional in Java. By using Optional you will always have a result to return for your methods, it also helps us avoid the NullPointerException which we usually meet in our Java application. #1 Optional Creation As many other objects in Java, to use Optional we need…

Java Functional Interfaces Software Engineer Must Know — Overview A functional interface is an interface that contains only one abstract method. From Java 8 onwards, lambda expressions can be used to represent the instance of a functional interface. A functional interface can have any number of default methods. In this article I would like to recommend four functional interfaces…

Software Engineer Interview Questions — Overview Let’s continue with problem solving in our series of articles. We are going to solve the “Median of Two Sorted Arrays” problem in this article. …

Big Tech Interview Questions For Software Engineers — Overview Let’s continue with problem solving in our series of articles. In this article, I describe and provide you a solution to solve the “Roman to Integer” problem and when we solve this problem I think you will get the idea to apply the solution when you meet the same problem…

How To Get Started With Threads In Java — Overview In Java Programming, Thread is the most popular technique for programming concurrency and parallelism. In terms of the Java technical concept, Thread helps us to achieve parallelism in the Java program, it makes an application run faster, especially running multiple tasks at the same time. …

How To Write SQL Better — Overview You’re a programmer, you’ve probably worked with SQL queries. There are numerous ways to run a SQL query to obtain the desired results from your database. However, not everyone understands how to write correctly, optimally, easily read, and at a high processing speed. This article will show you how to…

How I Practice Problem Solving in Leetcode — Overview Let’s continue with problem solving in our software engineering journey. In this article, I will provide you the way to solve the “Add Two Numbers” problem - medium difficulty. Now, let’s look at the problem and the way I solve it. Problem Difficulty: Medium You are given two non-empty linked lists…

From SQL Examples to Apache Beam Java Code — Overview As software engineers, SQL is a very popular language which is used to query the data from our backend database for the application. In this article, I would like to share how to learn big data processing with SQL background by sharing the popular data processing. …