Javaskills4u: # Java Data Types | # Data Types in Java

# Java Data Types | # Data Types in Java

Data Types in Java indicates that which type of data is used in program. These Data types are classified into 2 types.

1. Primitive Types: Primitive Data Types are simple data types. There are 8 Primitive Data Types

which are subdivided into 4 groups.

a. Integer Data Type : i) int,

ii) short,

iii) byte,

iv) long

b. Floating Point Data Types: float

double

c. Character Data Types

d. Boolean Data Types

a. Integer Data Type : It represents signed integer values. They are further divided into 4 types.

1. Byte : Byte Data Type maintains signed Integer Values of size, byte

Syn: Byte variable - name;

2. Short : Short data Type Maintains Signed Integer values of size 2 bytes.

Syn: Short variable - name;

3. Int: The int data type is most preferable integer data type. The size of int is 4 bytes

Syn : int variable - name;

4. Long: The long data type maintain a signed integer value of size 8 bytes.

Syn : Long variable - name;

2. Floating Point Data Types: Floating Point Data Types are the data types that indicates the

fractional values.

They are of 2 types

1. float: The float data type is used to represent single precision number, Its size is 4 bytes.

Syn : float variable - name;

2. Double : The Double data Type is used to represent double precision numbers. Its size is 8 byte.

3. Non - Primitive Data Types: Non - Primitive Data Types are secondary data types in Java

They are 1. array

2. structure

3. interface