Java Programming Tutorials

Java programming tutorials with many code examples!

Remove duplicates from List in Java

We show how to remove duplicates from List in Java. Choose implementation depending on circumstances and with expected performance.

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Java 8 range of numbers

How to generate in Java 8 range of numbers? This is practical problem, often met when writing tests. In this post we’ll cover fast implementation, comfortable, and flexible with Java 8 Streams!

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Java 8 List to Map

Very common task is creation of Map from a List of objects. In this post we show how to use Java 8 to convert List to Map using Collectors.

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Java 8 forEach examples

In this article we present Java 8 forEach on examples. These are very convenient methods for use with Lambda Expressions and method references.

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