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Java is pretty amazing. Sometimes during mock testing you may need to generate Random number like Integer or Double or Long or String from ArrayList.
In this tutorial we will create Company ArrayList and then we will retrieve random element from the list. Also, we will use a ThreadLocalRandom which is initialized with an internally generated ...
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Spring Framework - StopWatch() is a very handy utility for any Java developer if you have small Java application or production ready application. Most of the Java applications involve Thread pooling or multiple simultaneous job invocation at the same ...
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Today after installing Java 12 on my laptop, I started seeing some issue about compiler version mismatch.
In this tutorial we will go over steps on how to fix these errors.
[crayon-5d08055780672594199748/]
How to fix more recent version of the ...
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Amazon AWS is no doubt the best public cloud out there. As we discussed in previous tutorials, Ansible is a very handy tool for sysops to maintain their company infrastructure.
In this tutorial we will go over steps on how to create, start and ...
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There is no doubt Amazon AWS is the biggest public cloud provider out there. I personally started playing with Amazon AWS for few of Crunchify's clients and I must say AWS is so flexible.
I use my Macbook Pro for all of my development activities. ...
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Ansible is pretty amazing system admin tool. We have published number of articles on Ansible in last few weeks on how to copy files on remote host, How to Execute Commands on remote Hosts, how to install Java, Python on remote host and so on.
In ...
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What is pre_tasks in Ansible?
pre_tasks is a task which Ansible executes before executing any tasks mentioned in .yml file.
Consider this scenario. You provisioned a new instance on Amazon EC2 cloud or Google Cloud. First thing you need to do is ...
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What is Boto?
Boto is an Amazon AWS SDK for python. Ansible internally uses Boto to connect to Amazon EC2 instances and hence you need Boto library in order to run Ansible on your laptop/desktop.
Recently I started playing with Amazon EC2 and ...
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Apache Tomcat (or simply Tomcat) is an open source web server and servlet container developed by the Apache Software Foundation (ASF). Tomcat implements the Java Servlet and the JavaServer Pages (JSP) specifications from Oracle Corporation, and ...
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