Exam MB-500 topic 4 question 23 discussion

Actual exam question from Microsoft's MB-500

Question #: 23
Topic #: 4

A company uses Dynamics 365 Finance.

You are performing a code review for several segments of code that use the Boolean data type.

You need to validate the segments for the correct X++ structure.

Which two code statements will compile? Each correct answer presents a complete solution.

NOTE: Each correct selection is worth one point.

A. boolean exprValue; exprValue = (8*6 == 48);
B. boolean exprValue = (8*6 == ‘48’) ? Yes:No;
C. boolean exprValue; exprValue = (8*6 == 48) ? 1:0;
D. boolean exprValue = (8*6 == ‘48’) ? false:true;

Show Suggested Answer

Suggested Answer: AC 🗳️

by smithlaod at Oct. 14, 2023, 10:32 a.m.

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MsPandiPanda

1 month ago

Selected Answer: AC

AC are correct. We can use "1,0" or "false,true" with boolean in x++. B and D are incorrect because of the quotation marks wrapping the number '48' in those propositions. It makes the statements unable to compile.

upvoted 1 times

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smithlaod

1 year, 2 months ago

AD is correct. In X++, boolean data type is true or false, not 1 and 0.

upvoted 1 times

JKHenry

1 year ago

No, False = 0, true =1. And 8*6 = 48, not 8*6 = '48'

upvoted 5 times

smithlaod

10 months, 2 weeks ago

You are right, thanks for your comment. According: https://learn.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/dev-ref/xpp-data-primitive#boolean

upvoted 1 times

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