answer anyone both the parts

Answers
1) Java Package key word
2) Unlimited number of reference types, as they are defined by the user. Consists of boolean and numeric types: char , byte , short , int , long , float , and double . Memory location stores a reference to the data. Memory location stores actual data held by the primitive type.
Question :-
Name the following :
(i) A keyword for calling a package in a program .
(ii) Any one reference datatype .
Answers:-
(i) Import .
(ii) class .
Explanation :-
▶ Import is used to call the package .
▶ The keyword is used before the package .
▶ For example : import java.util,*;
▶ In the above example , java.util.* is a package .
▶ A keyword is a word that has a special meaning for the language compilers .
▶ It cannot be used as identifiers .
▶ Class is also a user defined datatype .
▶ It is a reference data type .