MCQHard1 mark
6
Give the output of the following:
Give the output of the following: int v = 5; while(--v >= 0) { System.out.print(v); }
Topic: Prefix decrement in a loop condition
Previous-year question practice database
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Pick an option and check your answer. The full worked answer is below either way.
Answer
Exam answer
(a) 43210.
Explanation
The decrement is PREFIX and sits inside the condition, so v is reduced BEFORE each test and before the printing. v becomes 4, 4 >= 0 is true, prints 4 v becomes 3, prints 3 ... and so on down to 0 v becomes -1, the condition fails and the loop ends So the output is 43210 — note that 5 is never printed, because v is already reduced before the first print. Had the condition been v-- >= 0, the output would have started at 5 instead.
In words
43210.
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