Data Types in Java
Data type is divided into 2 types.
1. Primitive
• Boolean – (1 bit But boolean size is not fixed – JVM will decide the size of Boolean)
• char – 2 byte
• byte – 8 bit (1byte = 8 bit)
• short – 2 byte
• int – 4 byte
• long – 8 byte
• float – 4 byte
• double – 8 byte
2. Non – Primitive
• String
• Array
• Class
• Structure
• Union
What is the deference between Primitive and Non-Primitive?
Ans :- Primitive Data types size is fixed were Non-Primitive Data types size is not fixed.
Lets understand with one example
char = ‘a’; char size = 2 byte right.?
String1 = ‘swapnil’
Now consider 1 char = 2 byte and if we check char in String1 is = 7 so 2*7 = 14 byte right..?
Now another one
String2 = ‘nikita’
Again if we check char in String2 is = 6 so 2*6 = 12 byte right..?
String1 is 14 byte and string2 is 12 byte
That’s why String size is not fixed
