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Avoid NullPointerException: Safe Navigation with Groovy

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justin cater

Posts: 19616
Nickname: justin78
Registered: Mar, 2011

Justin Cater is executive editor at Java Code Geeks
Avoid NullPointerException: Safe Navigation with Groovy Posted: Sep 28, 2015 7:58 AM
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We know it’s all too common in Java to get a NullPointerException when we use an object reference which is null. This happens when our code tries to access a method or field of an object, or element of an array when there’s no instance present – e.g. it refers to null. class Animal { ...

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