单项选择题

Which of the following answer is correct to express the value 8 in octal number？（）

A. 010
B. 0x10
C. 08
D. 0x8

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多项选择题

Given the following code fragment：
public void create（） {
Vector myVect；
myVect = new Vector（）；
}
Which of the following statements are true？（）

A. The declaration on line 2 does not allocate memory space for the variable myVect.
B. The declaration on line 2 allocates memory space for a reference to a Vector object.
C. The statement on line 2 creates an object of class Vector.
D. The statement on line 3 creates an object of class Vector.
E. The statement on line 3 allocates memory space for an object of class Vector.

单项选择题

Which layout manager is used when the frame is resized the buttons’s position in the Frame might be changed？（）

A. BorderLayout
B. FlowLayout
C. CardLayout
D. GridLayout

多项选择题

Use the operators "<<"， ">>"， which statements are true？（）

A. 0000 0100 0000 0000 0000 0000 0000 0000<<5 gives 1000 0000 0000 0000 0000 0000 0000 0000
B. 0000 0100 0000 0000 0000 0000 0000 0000<<5 gives 1111 1100 0000 0000 0000 0000 0000 0000
C. 1100 0000 0000 0000 0000 0000 0000 0000>>5 gives 1111 1110 0000 0000 0000 0000 0000 0000
D. 1100 0000 0000 0000 0000 0000 0000 0000>>5 gives 0000 0110 0000 0000 0000 0000 0000 0000