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How to count number of files in a directory in Java | File.list() vs NIO’s DirectoryStream

This quick code tip how to count number of files in a directory in Java. It shows two approaches to code for the problem. First approach uses java.io.File class, while the second approach uses java.nio.file.Path and java.nio.file.DirectoryStream classes … Continue reading How to count number of files in a directory in Java | File.list() vs NIO’s DirectoryStream

Java 8 How to use Collectors summarizingInt, summarizingLong, summarizingDouble with examples

Tutorial explains how to use Java 8’s predefined collector Collectors.summarizingInt, Collectors.summarizingLong, Collectors.summarizingDouble with examples … Continue reading Java 8 How to use Collectors summarizingInt, summarizingLong, summarizingDouble with examples

Java 8 – How to use Collectors.mapping Collector with examples

Tutorial explains how to use Java 8’s predefined collector returned by Collectors.mapping() method with examples. It explains mapping collector’s working, and provides two Java 8 code examples showing the collector’s usage … Continue reading Java 8 – Java 8 – How to use Collectors.mapping Collector with examples

Java 8 – How to use Collectors.toCollection Collector with examples

Tutorial explains how to use Java 8’s predefined collector returned by Collectors.toCollection() method with examples. It explains toCollection Collector’s working, and provides two Java 8 code examples showing how to implement … Continue reading Java 8 – How to use Collectors.toCollection Collector with examples

The Complete Java Enums Tutorial with Examples

This tutorial explains the fundamentals of Java enums with examples incl. defining enum types, defining enums, values(), valueOf() & ordinal() method are explained. Next the tutorial covers enum equality, followed by … Continue reading Functional Interfaces in Java 8 Explained

Java 8 How to use collectors averagingInt, averagingLong, averagingDouble with examples

Tutorial explains how to use Java 8’s predefined collector Collectors.averagingInt, Collectors.averagingLong, Collectors.averagingDouble with examples … Continue reading Java 8 How to use Collectors averagingInt, averagingLong, averagingDouble with examples

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