Tag: nullpointerexception
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How to use Optional keyword to avoid NullPointerException in nested objects in Java?
Let’s say you have a nested object in your application . And you want to retrieve the value of a field in the deepest nested object. We will see how to do this using pre-Java 8 and post-Java 8 code (using Optional keyword) Lets consider an Employee object, Let’s say the Employee object has an…