I believe it’s problem solving.
Answer:
3
Explanation:
I've just taken the test and made a 100. 3 is the most logical answer aswell, it has more of an effect than the others.
Answer:
The correct answer to the following question is option 4.
Explanation:
The private class does not mean that the package-private, it means that no other class can see its members.
It is used in creating the building blocks which is implementing the internal functionality that you don't want to visible to the other projects using the library.
We can use private constructor to ensure that more than one object cannot be created at the time.
