How to use regular expression in Java?
Regular expressions are very important tool for seraching in text. Below is the code snippet for executing regex search and capturing different parts of the string based on the regular expression The […]
How to parse number string with commas to Integer or Long?
Below is the code used for parsing number string with commas to Integer or Long
Using Websocket with Spring Framework and Vuejs
Websockets are full duplex (persistent) connections between client and server such that both can share information with each other without the need for repeatedly establishing a new connection. This removes the need […]
Advanced profile management in Spring Boot
We all are aware of profile management in Spring Boot and the flexibility it provides in configuring our applications for different environments. The other powerful aspect of this is that at any […]
JDK 14 – JEP 361 Switch Expressions out from preview
In my previous post, I wrote about switch expressions and related enhancements released as a preview feature for JDK 12. Subsequently, in JDK 13 there were some changes proposed, like using yield […]
JEP 355 Text Blocks in JDK 13
JDK 13 went GA on September 17th, 2019 and the prominent new features are listed here. One of the new features is “text blocks”. This allows writing multiline strings easily without the […]
Integrating Amazon Cognito With Single Page Application (Vue.js)
In this article, we will look at authenticating Single page application (built using Vue.js) with Amazon Cognito using OAuth protocol. In our previous article we integrated a server side application with Amazon […]
Integrate Spring Boot Application with Amazon Cognito
In this article, we will show how to use Amazon Cognito service for authentication users in a Spring Boot application using the OAuth 2.0 client library introduced in Spring Security 5.0. What […]
How to Create QRCode Using QRGen in Java
In one of my previous articles, we saw how to create QRCode and its SVG equivalent using Zxing Java library. The Zxing library is no longer actively maintained and for this, there […]
JDK 12 – JEP 325 Switch Expressions
JDK 12 went GA on March 19, 2019, keeping its word on shorter release cycles and frequent releases. The features part of the release can be found here. One of the interesting […]
