Overview medium.com blocks my country (Vietnam). Apparently, there are many spammers from Vietnam use medium to spread their content. The solution to access medium when my country is blocked is to use a VPN. There are available solutions out there but they are not reliable. Some contain too much ads. If you have a server … Read more
Overview When working with spring data jpa, you probably come across issues like this: You have an entity with an @Embedded attribute. The @Embeddable class has the one property that has the same name as one of your entities’. You got this error when running the program: What do you do? Why Do you have … Read more
AWS Step Functions Overview AWS Step Functions is a serverless orchestration service that enables you to coordinate multiple AWS services into serverless workflows. Workflow Orchestration Step Functions allows you to build visual workflows to automate processes, orchestrate microservices, and create data and machine learning pipelines. It helps developers use AWS services to build distributed applications … Read more
Overview Working with currency data in Java involves several key aspects: conversion rates, formatting, rounding, and arithmetic operations. This article will guide you through handling these aspects effectively in Java, ensuring accurate and reliable financial applications. Conversion Rates To handle currency conversion, you can use external APIs like the ExchangeRate-API. This API allows you to … Read more
Overview This cheat sheet contains code example that I use most frequently in my recent project that uses ffmpeg extensively to edit and create video. Let’s get started. Run ffmpeg in Java To run a ffmpeg command from Java, use the following function. Create a video from a single image with a duration To create … Read more
Overview In Java, the == operator and the equals() method are both used to compare objects, but they serve different purposes and operate in fundamentally different ways. Stack, Heap, and References Before delving into the differences between == and equals, first, you need to understand what are references and how they are stored and used in Java. References and … Read more