This week s Java roundup for June 12th, 2023 features news from OpenJDK, JDK 22, JDK 21, GraalVM 23, various releases of: GraalVM Build Tools, Spring Framework, Spring Data, Spring Shell, Payara Platf
A Real-World Example of a Stream Collector
See how Stream Collectors work in the wild. by
Java Stream s
Collection or a scalar. For the former, you use one of the
toXXX() method, for the latter, one of the
reducing() one.
Let s imagine an e-commerce platform that implements a shopping cart. The cart is modeled as the following:
This diagram might translate into the following (abridged) code: Java 4 5 6 8 15 4 6 10 11 14 18 22
Product; the value is the quantity.
Remember to return a read-only copy of the collection to maintain encapsulation.
Once we have defined how we store data in memory, we need to design how to display the cart on-screen. We know that the checkout screen needs to show two different bits of information:
Java in Mule for Java Programmers
You have been a Java programmer for many years now and you want to re-use your technical skills and knowledge in Mule applications. by
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You have been a Java programmer for many years now, and you want to re-use your technical skills and knowledge in Mule applications. In this article, you will learn the typical use cases where you can directly include Java code in your Mule application. If you are interested to know more about Java and Mule, please join the Boost your Java career with Mule Integration meetup, where you have a chance to receive free professional training and certification.