多項(xiàng)選擇題

Given:
Which four code fragments, inserted independently at line 7, will compile?（）

A.public void m1() { }
B.protected void m1() { }
C.private void m1() { }
D.void m2() { }
E.public void m2() { }
F.protected void m2() { }
G.private void m2() { }

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多項(xiàng)選擇題

A company has a business application that provides its users with many different reports:
receivables reports, payables reports, revenue projects, and so on. The company has just purchased some new, state-of-the-art, wireless printers, and a programmer has been assigned the task of enhancing all of the reports to use not only the company's old printers, but the new wireless printers as well. When the programmer starts looking into the application, the programmer discovers that because of the design of the application, it is necessary to make changes to each report to support the new printers.
Which two design concepts most likely explain this situation?（）

A.Inheritance
B.Low cohesion
C.Tight coupling
D.High cohesion
E.Loose coupling
F.Object immutability

單項(xiàng)選擇題

Which Man class properly represents the relationship "Man has a best friend who is a Dog"?（）

A.class Man extends Dog { }
B.class Man implements Dog { }
C.class Man { private BestFriend dog; }
D.class Man { private Dog bestFriend; }
E.class Man { private Dog<bestFriend>; }
F.class Man { private BestFriend<dog>; }

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Given: Which four code fragments, inserted independently at line 7, will compile?（）

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Which Man class properly represents the relationship "Man has a best friend who is a Dog"?（）

Given:
Which four code fragments, inserted independently at line 7, will compile?（）