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Data Types in Java With Example
What is Data Types?
- Data types are used to represent types of variables and expressions.
- Data types are used to represent how much memory is allocated for variables.
- Data types are used to specify the range value of the variable.
Syntax of
Data Types
The basic
syntax of the data type is as follows,
Data types name of variable = value /literal;
Eg. int a=10;
int -> Data Type
a -> Variable name
= -> Assignment
10 -> Constant Value
; -> Statement terminator
Types of Data Types in Java
Data types
are divided into two sub-part
- primitive data type
- Non-Primitive data type
Primitive
data type in Java
In
Java primitive data types are used to specify the size and type of variable of value.
There are 8 Primitive data types in Java
- Byte
- Short
- Int
- Long
- Float
- Double
- Char
- boolean
Primitive data types in Java |
Non-Primitive data type in Java
In Java Non-primitive data types are also known
as reference types because
Non-primitive data types refer to objects.
Examples of non-primitive data types
- Strings
- Arrays
- Classes,
- Interface etc.
The important point to remember about Non- primitive
data type
- In Java a non-primitive data type is not pre-define it is created by the Java programmer except string data type
- In Java, programmers used non-primitive data types to call the method to perform some creation actions.
- In Java, a non-primitive data type can be null.
- In Java, a non-primitive data type starts with Upper Case
Byte Data Type
Short Data
Type
Int Data
Type
Long Data
Type
Float Data
Type
Double Data
Type
Char Data
Type
Boolean Data
Type
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