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Kotlin Standard Library Cookbook

You're reading from   Kotlin Standard Library Cookbook Master the powerful Kotlin standard library through practical code examples

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781788837668
Length 242 pages
Edition 1st Edition
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Author (1):
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Samuel Urbanowicz Samuel Urbanowicz
Author Profile Icon Samuel Urbanowicz
Samuel Urbanowicz
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Table of Contents (11) Chapters Close

Preface 1. Ranges, Progressions, and Sequences FREE CHAPTER 2. Expressive Functions and Adjustable Interfaces 3. Shaping Code with Kotlin Functional Programming Features 4. Powerful Data Processing 5. Tasteful Design Patterns Adopting Kotlin Concepts 6. Friendly I/O Operations 7. Making Asynchronous Programming Great Again 8. Best Practices for the Android, JUnit, and JVM UI Frameworks 9. Miscellaneous 10. Other Books You May Enjoy

Ensuring stream closing with the use function

Whenever we are accessing the contents of a File via FileInputStream or FileOutputStream, we should remember to close them once we've finished working on the file. Unclosed streams may lead to memory leaks and a significant decrease in performance. In this recipe, we are going to explore how to employ the use() extension function offered by the standard library under the kotlin.io package for automatic stream closing.

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