Java I/O Operation – Wrapper Class vs Primitive Class Variables
It is better to use the Primitive Class variable for the I/O operation unless there is a necessity of using the Wrapper Class. In this article, we can discuss briefly both wrapper class and primitive data type.
- A primitive data type focuses on variable values, without any additional methods.
- The Default value of Primitive class variables are given below,
Primitive Data types
\u0000 or null
- The default value of the wrapper class is null as they are objects.
- Primitive classes are faster when compared to wrapper classes. However, the wrapper class allows null values but the primitive class does not allow any null values.
- Wrapper classes help the Java program be completely object-oriented whereas primitive data types help in the simple declaration of values with variables. They also help the code be serializable.
- For conversion of primitive data type to objects, wrapper class is used. We can see the conversion of the Primitive data type to objects using the code below,
- If we have to serialize a primitive value, it must first be converted into objects using wrapper classes.
- Wrapper classes help in working with Collection variables.
Primitive data Type
|Even Large scale calculations can be made faster||When collections are used, a wrapper class is required|
|Methods will return a value||Methods will return null|
|mostly used when the variable should not be null or ‘\0’||Used when the variable should be null|
- For knowing more about the usage of primitive data type to wrapper class, we need to focus on Autoboxing and Unboxing.
- We can convert a Wrapper Class into primitive data types is called Unboxing.
- We can also refer to the below-mentioned code of converting the primitive data type to wrapper class (Autoboxing).
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