Explain primitive Data types of JAVA

Java defines 8 primitive types:

byte

• Smallest integer type
• It is a signed 8-bit type (1 Byte)
• Range is -128 to 127
• Especially useful when working with stream of data from a network or file
• Example: byte b = 10;

short

• short is signed 16-bit (2 Byte) type
• Range : -32768 to 32767
• It is probably least used Java type
• Example: short vId = 1234;

int

• The most commonly used type
• It is signed 32-bit (4 Byte) type
• Range: -2,147,483,648 to  2,147,483,647
• Example: int a = 1234;

long

• long is signed 64-bit (8 Byte) type
• It is useful when int type is not large enough to hold the desired value
• Example: long soconds = 1234124231;

char

• It is 16-bit (2 Byte) type
• Range: 0 to 65,536
• Example: char first = ‘A’; char second = 65;

float

• It is 32-bit (4-Byte) type
• It specifies a single-precision value
• Example: float price = 1234.45213f

double

• It uses 64-bit (8-Byte)
• All math functions such as sin(),cos(),sqrt() etc… returns double value
• Example: double pi = 3.14141414141414;

boolean

• The boolean data type has only two possible values: true and false.
• This data type represents one bit of information, but its "size" isn't something that's precisely defined.