Java Language
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- Auto-unboxing may lead to NullPointerException
- Different Cases When Integer and int can be used interchangeably
- Memory and Computational Overhead of Autoboxing
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- Using int and Integer interchangeably
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Java Language Autoboxing
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Introduction
Autoboxing is the automatic conversion that Java compiler makes between primitive types and their corresponding object wrapper classes. Example, converting int -> Integer, double -> Double... If the conversion goes the other way, this is called unboxing. Typically, this is used in Collections that cannot hold other than Objects, where boxing primitive types is needed before setting them in the collection.
Remarks
Autoboxing can have performance issues when used frequently in your code.
Autoboxing Related Examples
- Auto-unboxing may lead to NullPointerException
- Different Cases When Integer and int can be used interchangeably
- Memory and Computational Overhead of Autoboxing
- Using Boolean in if statement
- Using int and Integer interchangeably
