There are three different types of primitive data types that exist:

- Boolean – this data type deals in only two values either it can be true or false. It is also donates as 1 or 0.

- There are no other values that can be valid for Boolean data types and it is used mostly in conditional statements.

- int – this is the data type that is of 32 bit and it has the range in between -2,147,483,648 and 2,147,483,647.

- Null – this data type defines only one value that is NULL and this is the default value used in the String data type.

- These values are used in classes with other complex data types and it includes the object classes as well.