Q) what are the “primitive data types” in java language ?

A)  we have 8 primitive data types in java language.

1) int – 4 bytes 

2)float

3)double

4)char

5)Boolean

6)short - 2 bytes 

7)byte – 1 bytes 

8)long – 8 bytes 

Int , short , byte , long are non decimal integer values.

-> float and double represent decimal data types.“float“ is single precision and “double” is double precision(after decimal how many no . of values are there is called precision)

Ex :

float a=2.123456789f ;

Outout is 2.1234567 . because after decimal the float taken 7 degits are taken

Ex :

double a=2.123456789123456789 ;

Output  is 2.1234567891234567