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多項(xiàng)選擇題

switch（x） {
default：
System.out.println（“Hello”）；
}
Which two are acceptable types for x？（）

A. byte
B. long
C. char
D. float
E. Short
F. Long

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單項(xiàng)選擇題

You want to limit access to a method of a public class to members of the same class. Which access accomplishes this objective？（）

A. public
B. private
C. protected
D. transient
E. default access

單項(xiàng)選擇題

public class Test {
public static void main（String[] args） {
int x = 0；
assert （x > 0）： “assertion failed”；
System.out.println（“finished”）；
}
}
What is the result？（）

A. finished
B. Compilation fails.
C. An AssertionError is thrown.
D. An AssertionError is thrown and finished is output.

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