Variable and Data Type

Variable is a space in memory where we can store data. It helps to access the data easily.

Data Type

A data type defines size and type of information stored in a variable. Data types help in memory management. It helps to assigns the memory depending upon the type of data type.

Most importantly Java has a numerous data type and all data types are predefined, which is used to store a large amount of information.

There are two main categories of data type primitive and non-primitive which classified the various data type. The following diagram classified the primitive data types and non-primitive data types:

 

Contributed by: Poonam Tomar


Full stack Java Developer

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