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Tip: How to Increase the Size of an Array in Java

Learn a trick for getting around the issue of arrays not being resizable in Java.


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Java arrays are not resizable. But we can work around this constraint with the following trick.

int[] newArr = Arrays.copyOf(arr, arr.length + 1);

 

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Octavia Andreea Anghel is a senior PHP developer currently working as a primary trainer for programming teams that participate at national and international software-development contests. She consults on developing educational projects at a national level. She is a coauthor of the book "XML Technologies--XML in Java" (Albastra, ISBN 978-973-650-210-1), for which she wrote the XML portions. In addition to PHP and XML, she's interested in software architecture, web services, UML, and high-performance unit tests.
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