题目内容

Math.pow(4, 1.0 / 2) returns __________.

A.2
B.1.0
C.0
D.2.0

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Which of the following statements are the same? (A) x -= x + 4 (B) x = x + 4 – x (C) x = x - (x + 4)

A.(A), (B), and (C) are the same
B.(B) and (C) are the same
C.(A) and (C) are the same
D.(A) and (B) are the same

Which of the following assignment statements is incorrect?

A.i = j = k = 1;
B.i = 1; j = 1; k = 1;
C.i = 1 = j = 1 = k = 1;

You can always assign a value of long type to a variable of int type without loss of precision.

A.true
B.false

You can always assign a value of int type to a variable of long type without loss of information.

A.true
B.false