<p>There are two commonly used data types in java namely Primitive and Reference Data type.    </p>
<h1 id="primitive-data-type"><strong>Primitive Data Type</strong></h1>
<p>Primitive data type specifies the size and type of variable values, and has no additional method. These data types are predefined in java. Makes use of <em>camel case.</em> Ie It is used for storing simple values.</p>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1601596642731/l553unKCr.png" alt="image.png" /></p>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1601596681781/A82A6suOg.png" alt="image.png" /></p>
<h2 id="reference-data-types"><strong>Reference Data Types</strong></h2>
<p>Reference data types are used for storing complex objects. Such as mail messages, dates etc. These are not predefined unlike the primitive type.</p>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1601596990835/ipdFHa_xN.png" alt="image.png" /></p>


There are two commonly used data types in java namely Primitive and Reference Data type.	


# **Primitive Data Type**


Primitive data type specifies the size and type of variable values, and has no additional method. These data types are predefined in java. Makes use of *camel case.* Ie It is used for storing simple values.


![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1601596642731/l553unKCr.png)




![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1601596681781/A82A6suOg.png)




## **Reference Data Types**


Reference data types are used for storing complex objects. Such as mail messages, dates etc. These are not predefined unlike the primitive type.


![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1601596990835/ipdFHa_xN.png)





Java Data Types

Primitive Data Type

Reference Data Types