Working with CSV or TSV files, we often ought to ignore the header row (aka. the column headers) before reading the rest of the file. To strip out the first…
Category: Java
The programming language Java
Java Remote Debugging
https://itnext.io/remote-debugging-spring-boot-on-kubernetes-a5f96a40e5c0 https://medium.com/swlh/remote-debugging-a-java-application-running-in-docker-container-with-intellij-idea-efe54cd77f02 https://www.youtube.com/watch?v=OmQU1p0wQmY&t=608s https://blog.christianposta.com/kubernetes/java-remote-debug-for-applications-running-in-kubernetes/ https://medium.com/swlh/remote-debugging-a-java-application-running-in-docker-container-with-intellij-idea-efe54cd77f02 https://docs.oracle.com/javase/8/docs/technotes/guides/jpda/conninv.html#Invocation
Optional Parameters in Java: Common Strategies and Approaches
Recently, I have written an introduction of default arguments in C++. Now, we are aiming to work with default parameters in Java to see what are similar and different. I…
How to create a temporary file to store data
Your application has to write data out in a temporary file to reprocess them before rendering to users. The file will be created temporarily and swept our when the application…
Fastest way to get the first n elements of a List or an Array
Which is the fastest way to get the first n elements of a List or an Array? Let’s give a context where we want to extract some first elements from…
How to test database connection without using Hibernate ORM in Grails
You will likely encounter a headache problem when bringing a large project to cloud-based deployment development, especially testing the access of databases if you have to request of accessing internally…
Getting started with Log4j2
Log4j2 is the upgraded version of Apache Log4j with significant improvements over its predecessor and provides many of the improvements available in Logback while fixing some inherent problems occurred in…
ArrayList in Java
ArrayList class implements List interface and it is based on Array data structure. It is widely used because of the functionality and flexibility that it offers. Most of the developers…
Java Books and References
This text will introduce useful learning resources for someones who want to learn Java programming language. Because resources are continuously updated, this writing is too keep up. Official Java Documentation…
HashMap class in Java
This text aims to introduce HashMap and how to use it in Java programs. In the series of Map involved articles, HaspMap is implemented from Map interface and inherited from…