C#.NET — which are the correct ways to call method Issue() from Book and Journal classes in College.Lib namespace?

Q: C#.NET — which are the correct ways to call method Issue() from Book and Journal classes in College.Lib namespace?

Fact: To avoid writing fully qualified names repeatedly, we can use using College.Lib;. This allows direct instantiation of Book and Journal. Final Answer: using College.Lib; Book b = new Book(); b.Issue();

Difficulty: Medium

College.Lib.Book b = new College.Lib.Book(); b.Issue();
Book b = new Book(); b.Issue();
using College.Lib; Book b = new Book(); b.Issue();
using College; Lib.Book b = new Lib.Book(); b.Issue();
using College.Lib.Book; Book b = new Book(); b.Issue();

Correct Answer: using College.Lib; Book b = new Book(); b.Issue();

Explanation:

Fact:
To avoid writing fully qualified names repeatedly, we can use using College.Lib;. This allows direct instantiation of Book and Journal.

Final Answer:
using College.Lib; Book b = new Book(); b.Issue();

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C#.NET — which are the correct ways to call method Issue() from Book and Journal classes in College.Lib namespace?

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