List/Grid Tag Archives: Java 8

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Turning recursive file system traversal into Stream

When I was learning programming, back in the days of Turbo Pascal, I managed to list files in directory usingFindFirst, FindNext and FindClose functions. First I came up with a ...
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Java SE 8 new features tour: Functional programming with Lambda Expression

This article of the “Java SE 8 new features tour” series will deep dive into understanding Lambda expressions. I will show you a few different uses of Lambda Expressions. They all ...
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Type safe dependency injection using Java 8.0

So I sometimes really miss old school Dependency Injection. Back when Spring was still “lightweight” we happily configured all our beans in an application.xml file with ...
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Java 8 Lambdas vs Groovy Closures Compactness: Grouping And Summing

Java 8 is featuring lambdas, which are similar to a construction Groovy has already for some time: closures. In Groovy we could already do this:               def ...
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Java SE 8 new features tour: The Big change, in Java Development world

I am proudly one of the adopt-OpenJDK members like others professional team members but joined from last 8 months, and we went through all stages of Java SE 8 development, compilations, ...
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Java 8 Friday: 10 Subtle Mistakes When Using the Streams API

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. Java 8 Friday Every ...
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Builder pattern using Java 8

I work in an environment where a great deal of our day to day scripting tasks occur through calling remote services as opposed to working with the database. For a lot of scripting tasks ...
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Listing a ZIP file contents with Stream API in Java 8

In Java 8 java.util.zip.ZipFile was equipped with a stream method that allows navigating over a ZIP file entries very easily. In this blog post I will show a bunch of examples showing ...
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Java 8 Optional: How to Use it

Java 8 comes with a new Optional type, similar to what is available in other languages. This post will go over how this new type is meant to be used, namely what is it’s main ...
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Spring 4: @DateTimeFormat with Java 8 Date-Time API

@DateTimeFormat annotation that was introduced in Spring 3.0 as a part of Formatter SPI can be used to to parse and print localized field values in web applications. In Spring 4.0, ...
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