Code Example
Java Optional – No More NullPointerException In Your Code
When writing code, the developer often can not know whether the necessary object will exist at the program execution time or not, and in such cases it is necessary to do...
Code Example
Java Scanner Example – Reading Input from Console
The java.util.Scanner class used for scanning text. java.util.Scanner parses primitive types and strings using regular expressions.
Here what you should know about Java Scanner:
Scanner breaks the input into...
AWS
Simple Java Spring Boot Application with DynamoDB
Today we’ll build a simple Spring Boot Application and integrate it with DynamoDB.
We’ll configure our Spring Boot application to use a local DynamoDB instance using Spring Data. We’ll create an example...
Code Example
Java Spring Scopes Explained
Java Spring framework has several different bean scopes. Today I'll explain the meaning of each Spring beanscope.
The scope of a bean defines the life cycle and visibility of that bean in...
Code Example
Creating and Running Your First Chef Cookbook
Chef is a configuration management tool written in Ruby. Chef is used to streamline the task of configuring and maintaining a company's servers. Chef can be easily integrated with cloud-based platforms such...
Code Example
Java Spring REST API with Empty or Optional parameters
Sometimes you need the ability to handle REST API calls with empty parameters. For instance we have following REST API:
@RequestMapping(value = "/getJsonFile")
public String getJsonFile(@RequestParam("instanceType") String instanceType,
...
