题目内容

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

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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

Which of these data types requires the most amount of memory?

A.byte
B.short
C.long
D.int