How to Avoid NullPointerException | Ji ZHANG's Blog



How to Avoid NullPointerException | Ji ZHANG's Blog

NullPointerException happens when you dereference a possible null object without checking it. It's a common exception that every Java programmer may encounter in daily work. There're several strategies that can help us avoid this exception, making our codes more robust. In this article, I will list both traditional ways and those with tools and new features introduced by recent version of Java.


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