Java expert please help me multiple choice questions. If question you are not sure, please just don't answer. Thank you so much for your help.

Q2: I think answers are:

the program has a compile error because.....

and

the program would work if you delete the method m2

Q3: I am thinking between "is always true" and "may be true or false"

I am no idea question 6. Please explain if you have an answer on question 6

I am thinking between:

coverage- determines how much of program has been tested white box testing- testing that does not take program structure into account boundary test- testing that examines the limit of correct input

black box testing- testing that take program structure into account

or

coverage- determines how much of program has been tested white box testing- testing that take program structure into account boundary test- testing that examines the limit of correct input

black box testing- testing that does not take program structure into account

What is the answer for question 19?

QUESTION 2 Analyze the following code: public dass Test public static void mainstrngo args) Test test new Test0; test set Action (0 system out print Action 1! public void set Action(T )I tm10; interface T public void m10. public void m20 question 2 More than 1 correct answer he program displays Action 1. The program has a compile error because T is not a functional interface. T contains multiple methods. The program would work if you delete the method m2 from the interface T The program has a runtime error because T is not a functional interface. T contains multiple methods