单项选择题

Given:

What is the result?（）

A.Exception
B.A,B,Exception
C.Compilation fails because of an error in line 20.
D.Compilation fails because of an error in line 14.
E.A NullPointerException is thrown at runtime.

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多项选择题

Which two code fragments are most likely to cause a StackOverflowError?（）

A.
B.
C.
D.
E.
F.

多项选择题

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() { }

单项选择题

Given:

Which statement is true about the class of an object that can reference the variable base? （）

A.It can be any class.
B.No class has access to base.
C.The class must belong to the geometry package.
D.The class must be a subclass of the class Hypotenuse.

Given: What is the result?（）

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Given:

What is the result?（）