#primitive data type

Java Float Primitive Data Type With Program Example

For decimal representation, Java provides a separate category named floating-point types that includes float and double. In this article, we’ll be discussing float data type. In Java, a float is a 32-bit primitive type for storing fractional values. It represents single-precision values that take half-space than double precision. This data type is useful for fractional values with less degree of…

Java : Data Types

Java is a strictly-typed programming language. It means all variable names must be declared with Data Type before its use. Each variable with Data Type specifies allowed values and size allocated to it.

Java allowed two types of data types:

Primitive data types: These are the most basic data type in Java, used to the building blocks of manipulation. These 8 are the primitive data types: boolean,…

Total 8 primitive types are supported by Java.

Data types is nothing but a way to assign different size of memory space to different data. Depending on the size required to store the data, memory space is allocated to it.

To make things easy, In Java we call such memory spaces by name as below,

Data Type

Size

Default Value

Min

Max

boolean

1 bit

false

false

true

char

2 byte

'\u0000'

'\u0000' (or 0)

'\uffff' (or 65,535)

byte

1 byte

0

-128 (-2^7)

127 (2^7 -1)

short

2 byte

0

-32,768 (-2^15)

32,767 (2^15 -1)

int

4 byte

0

- 2,147,483,648 (-2^31)

2,147,483,647 (2^31 -1)

long

8 byte

0L

-9,223,372,036,854,775,808

(-2^63)

9,223,372,036,854,775,807

(2^63 -1)

float

4 byte

0.0f

double

8 byte