QUESTIONS ON CONTROL STRUCTURES

1.	How many times "IndiaBIX" is get printed? #include<stdio.h> int main() { int x; for(x=-1; x<=10; x++) { if(x < 5) continue; else break; printf("IndiaBIX"); } return 0; }
	A. Infinite times B. 11 times C. 0 times D. 10 times Answer & Explanation Answer: Option C Explanation: No answer description available for this question. Let us discuss.

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2.	How many times the while loop will get executed if a short int is 2 byte wide? #include<stdio.h> int main() { int j=1; while(j <= 255) { printf("%c %d\n", j, j); j++; } return 0; }
	A. Infinite times B. 255 times C. 256 times D. 254 times Answer & Explanation Answer: Option B Explanation: The while(j <= 255) loop will get executed 255 times. The size short int(2 byte wide) does not affect the while() loop.

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3.	Which of the following is not logical operator?
	A. & B. && C. || D. ! Answer & Explanation Answer: Option A Explanation: Bitwise operators: & is a Bitwise AND operator. Logical operators: && is a Logical AND operator. || is a Logical OR operator. ! is a NOT operator. So, '&' is not a Logical operator.

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4.	Which is the correct order of mathematical operators ?
	A. Division, Multiplication, Modulus B. Division, Multiplication, Subtraction C. Modulus, Addition, Division D. Addition, Division, Modulus, Subtraction Answer & Explanation Answer: Option B Explanation: Simply called as BODMAS (Bracket of Division, Multiplication, Addition and Subtraction).

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5.

Which of the following cannot be checked in a switch-case statement?

A. Character B. Integer C. Float D. enum Answer & Explanation Answer: Option C Explanation: The switch/case statement in the c language is defined by the language specification to use an int value, so you can not use a float value. switch( expression ) { case constant-expression1: statements 1; case constant-expression2: statements 2; case constant-expression3: statements3 ; ... ... default : statements 4; } The value of the 'expression' in a switch-case statement must be an integer, char, short, long. Float and double are not allowed.