单项选择题X 纠错
A. abcd
B. ABCD
C. dccd
D. dcba
E. Compilation fails.
F. An exception is thrown at runtime.
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单项选择题
A. –2
B. NaN
C. Infinity
D. Compilation fails.
E. An exception is thrown at runtime.
单项选择题
A. java.util.Map
B. java.util.List
C. java.util.Hashable
D. java.util.Collection
单项选择题
A. NULL
B. Compilation fails.
C. The code runs with no output.
D. An exception is thrown at runtime.
单项选择题
A. f[0] = 0
B. f[0] = 0.0
C. Compilation fails.
D. An exception is thrown at runtime.
单项选择题
A. 0 ... 32767
B. 0 ... 65535
C. –256 ... 255
D. –32768 ... 32767
E. Range is platform dependent.
多项选择题
A. If the hashCode values are different, the objects might be equal.
B. If the hashCode values are the same, the object must be equal.
C. If the hashCode values are the same, the objects might be equal.
D. If the hashCode values are different, the objects must be unequal.
多项选择题
A. run
B. import
C. default
D. implement
单项选择题
A. 42
B. An exception is thrown at runtime.
C. Compilation fails because of an error on line 12.
D. Compilation fails because of an error on line 16.
E. Compilation fails because of an error on line 17.
单项选择题
A. void run()
B. public void run()
C. public void start()
D. void run(int priority)
E. public void run(int priority)
F. public void start(int priority)
单项选择题
A. baz =
B. baz = null
C. baz = blue
D. Compilation fails.
E. An exception is thrown at runtime.