Programming problems
- 1. What will be output when you will execute following c code? #include
void main() { switch(2) { case 1L:printf("No"); case 2L:printf("%s","I"); goto Love; case 3L:printf("Please"); case 4L:Love:printf("Hi"); } }
Options- A. I
- B. IPleaseHi
- C. IHi
- D. Compilation error Discuss
Correct Answer: IHi
Explanation:
It is possible to write label of goto statement in the case of switch case statement.
- 2. Write a c program for linear search. Discuss
Correct Answer: #include
- 3. Rewrite the following set of statements using conditional operators. int a =1, b ; if ( a > 10 ) b = 20; Discuss
Correct Answer: int a = 1, b , dummy; a > 10 ? b = 20 : dummy =1; Note that the following would not have worked: a > 10 ? b = 20 : ;;
- 4. How many times the following program would print 'Jamboree'? main() { printf ( "\nJamboree"); main (); } Discuss
Correct Answer: Till the stack doesn't overflow
- 5. Macro flowchart is also called as
Options- A. Less Detail flowchart
- B. More detail flowchart
- C. Simple detailed flowchart
- D. None of the above Also asked in: AIEEE, Bank Exams, CAT, GATE, GRE, Analyst, Bank Clerk, Bank PO
Correct Answer: Less Detail flowchart
Explanation:
A flowchart is a type of diagram that represents a workflow or process. A flowchart can also be defined as a diagrammatic representation of an algorithm, a step-by-step approach to solving a task.
Macro flowchart shows the outlines the main segments of program. Macro flowchart is also called as less detail flowchart.
- 6. public abstract interface Frobnicate { public void twiddle(String s); } Which is a correct class?
Options- A. public abstract class Frob implements Frobnicate { public abstract void twiddle(String s) { } }
- B. public abstract class Frob implements Frobnicate { }
- C. public class Frob extends Frobnicate { public void twiddle(Integer i) { } }
- D. public class Frob implements Frobnicate { public void twiddle(Integer i) { } } Discuss
Correct Answer: public abstract class Frob implements Frobnicate { }
Explanation:
B is correct, an abstract class need not implement any or all of an interface?s methods
- 7. Convert the expression ((A + B) * C ? (D ? E) ^ (F + G)) to equivalent Prefix Notation Discuss
Correct Answer: Prefix Notation: ^ - * +ABC - DE + FG
- 8. What value does read() return when it has reached the end of a file?
Options- A. 1
- B. -1
- C. 0
- D. None Discuss
Correct Answer: -1
Explanation:
It returns -1
- 9. What will be output of following program? #include
int main() { void (*p)(); int (*q)(); int (*r)(); p = clrscr; q = getch; r = puts; (*p)(); (*r)("www.curioustab.com"); (*q)(); return 0; }
Options- A. NULL
- B. www.curioustab.com
- C. Compilation error
- D. None of above Discuss
Correct Answer: www.curioustab.com
Explanation:
p is pointer to function whose parameter is void and return type is also void. r and q is pointer to function whose parameter is void and return type is int . So they can hold the address of such function.
- 10. What would be the output of the following program? main() { char a[] = "Visual C++"; char *b = "Visual C++"; printf ("\n%d %d", sizeof (a), sizeof (b)); printf ("\n%d %d", sizeof (*a), sizeof (*b)); } Discuss
Correct Answer: 11 2 1 1
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