Over a million developers have joined DZone.

A Look at Netbeans Support for Upcoming Language Enhancements in Java 8

· Java Zone

Discover how AppDynamics steps in to upgrade your performance game and prevent your enterprise from these top 10 Java performance problems, brought to you in partnership with AppDynamics.

While I was working on the samples for this post using the Nebeans nightly builds with support for Lambda Expressions downloaded from here. I found that the IDE gave good suggestions for converting the code to use the Java 8 support as and where possible. For example I had a small piece of code:

List<Person> olderThan30OldWay = new ArrayList<>();
for ( Person p : personList){
  if ( p.age >= 30){
    olderThan30OldWay.add(p);
  }
}
System.out.println(olderThan30OldWay);

and the IDE showed an yellow line under the for and provided a hint as shown in the screenshot below:
Functional_Hint
and using the hint resulted in the following code being added in place of the above code:

List<Person> olderThan30OldWay = new ArrayList<>();
personList.stream().filter((p) -> ( p.age >= 30)).forEach((p) -> {
  olderThan30OldWay.add(p);
});
System.out.println(olderThan30OldWay);

This is going to be really useful for people to identify where the code can be replaced by Lambda Expression. A more detailed intent of experimenting with the above sample can be found in my previous post here.


 

The Java Zone is brought to you in partnership with AppDynamics. AppDynamics helps you gain the fundamentals behind application performance, and implement best practices so you can proactively analyze and act on performance problems as they arise, and more specifically with your Java applications. Start a Free Trial.

Topics:

Published at DZone with permission of Mohamed Sanaulla, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}