List/Grid Tag Archives: Java 8

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HashMap performance improvements in Java 8

HashMap<K, V> is fast, versatile and ubiquitous data structure in every Java program. First some basics. As you probably know, it uses hashCode() and equals() method of keys to split values between buckets. The number of buc ...
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Handy New Map Default Methods in JDK 8

The Map interface provides some handy new methods in JDK 8. Because the Map methods I cover in this post are implemented as default methods, all existing implementations of the Map interface enjoy the default behaviors defined in ...
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Java 8 LongAdders: The Right Way To Manage Concurrent Counters

I just lOvE new toys, and Java 8 has a bunch of them. This time around I want to talk about one of my favourites – concurrent adders. This is a new set of classes for managing counters written and read by multiple threads. The ...
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10 JDK 7 Features to Revisit, Before You Welcome Java 8

It’s been almost a month Java 8 is released and I am sure all of you are exploring new features of JDK 8. But, before you completely delve into Java 8, it’s time to revisit some of the cool features introduced on Java 7. I ...
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How to do Continuous Integration with Java 8, NetBeans Platform 8, Jenkins, Jacoco and Sonar

Intro Java 8 is there, the promised revolution is finally released, and I am sure that a lot of you are having in mind the same question “Should I use it in my project?”. Well, I had the same question for few months and today ...
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New BigInteger Methods in Java 8

Attention to new features in JDK 8 has rightfully been largely focused on new language features and syntax. However, there are some nice additions to the libraries and APIs and in this post I cover four new methods added to the Bi ...
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Oracle Drops Collection Literals in JDK 8

In a posting on the OpenJDK JEP 186 Oracle’s Brian Goetz informs that Oracle will not be pursuing collection literals as a language feature in JDK8. A collection literal is a syntactic expression form that evaluates to an aggreg ...
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15 Must Read Java 8 Tutorials

Java 8 was released last month and is just chock-full of new features and behind-the-scenes optimizations. The internet has been doing quite a good job covering all these new additions – both the good and the bad. I thought it ...
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Dubious Aspects of Features of JDK 8

Most of us who develop with Java are generally enthusiastic for the features and improvements that come with JDK 8. However, there have been several recent posts that have pointed out some features that can be misused and abused a ...
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How much faster is Java 8?

Java SE 8 was released yesterday. Traditionally, every new major JRE version comes with a free performance boost. Do we get another free lunch? And how big is the gain this time? Let’s benchmark it.         & ...
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