Java
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Running code on Spring Boot startup
Spring Boot does a lot of configuration automatically for us but sooner or later you’ll have to do some custom…
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Migrating from Commons CLI to picocli
Apache Commons CLI, initially released in 2002, is perhaps the most widely used java command line parser, but its API…
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Java Integer Cache – Why Integer.valueOf(127) == Integer.valueOf(127) Is True
In an interview, one of my friends was asked that if we have two Integer objects, Integer a = 127; Integer…
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Understanding H2 InMemory Database with Spring Boot
Introduction Basically the database setup involves several steps before we can use it through configured datasource in our application. This…
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Spring Boot Microservices , Docker and Kubernetes workshop – part2
In the previous post we created our first micro service “ProductService” using SpringBoot and Docker. In this part we will go…
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Behavioural Design Patterns: Mediator
Previously we had a look at the iterator pattern. The mediator pattern is way different on what it tries to…
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Build a RESTful API in Go using AWS Lambda
In this post we will learn to design, build, and deploy a RESTful API in Go using AWS Lambda. Before starting, let…
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Java optional parameters
When you design a method in a Java class, some parameters may be optional for its execution. No matter it…
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In any incomprehensible situation go scripting
Scripting is one of the most popular ways to make your application adjustable for client needs right at runtime. As…
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