多项选择题

Given: Which three are valid?（）……

Given:

Which three are valid?（）

A.p0 = p1;
B.p1 = p2;
C.p2 = p4;
D.p2 = (ClassC)p1;
E.p1 = (ClassB)p3;
F.p2 = (ClassC)p4;

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热门试题

单项选择题Given: What is the result?（）

A.Canada
B.null Canada
C.Canada null
D.Canada Canada
E.Compilation fails due to an error on line 26.
F.Compilation fails due to an error on line 29.

单项选择题Given: What is the result? （）

A.three
B.other
C.An exception is thrown at runtime.
D.Compilation fails because of an error on line 12.
E.Compilation fails because of an error on line 13.
F.Compilation fails because of an error on line 15.

单项选择题Given: What is the result?（）

A.test end
B.Compilation fails.
C.test runtime end
D.test exception end
E.Throwable is thrown by main at runtime.

多项选择题Which two code fragments are most likely to cause a StackOverflowError?（）

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

单项选择题Given: What is the result?（）

A.The value "4" is printed at the command line.
B.Compilation fails because of an error in line 5.
C.Compilation fails because of an error in line 9.
D.A NullPointerException occurs at runtime.
E.A NumberFormatException occurs at runtime.
F.An IllegalStateException occurs at runtime.