Programming problems
- 1. enum colors {BLACK,BLUE,GREEN} main() { printf( "%d..%d..%d", BLACK, BLUE, GREEN ); return(1); }
Options- A. 1..2..3
- B. 0..1..2
- C. 1..1..1
- D. 0..0..0 Discuss
Correct Answer: 0..1..2
Explanation:
enum assigns numbers starting from 0, if not explicitly defined.
- 2. What will be output when you will execute following c code? #include
void main() { signed int a = -1; unsigned int b = -1u; if(a == b) printf( "The Lord of the Rings" ); else printf( "American Beauty" ); }
Options- A. The Lord of the Rings
- B. American Beauty
- C. Compilation error: Cannot compare signed number with unsigned number
- D. Warning: Illegal operation Discuss
Correct Answer: The Lord of the Rings
- 3. What would be the output of the following program? main() { extern int fun ( float ); int a; a = fun ( 3. 14 ); printf ("%d", a); } int fun ( aa ) float aa ; { return ( (int) aa ); } Discuss
Correct Answer: Error occurs because we have mixed the ANSI prototype with K & R style of function definition When we use ANSI prototype for a function and pass a float to the function it is promoted to a double When the function accepts this double into a float a type mismatch occurs hence the error The remedy for this error could be to define the function as : int fun (float aa) { }
- 4. In programming, repeating some statements is usually called ?
Options- A. Running
- B. Structure
- C. Looping
- D. Control structure Also asked in: Analyst, IT Trainer
Correct Answer: Looping
- 5. What will be output when you will execute following c code? #include
void main() { int const SIZE = 5; int expr; double value[SIZE] = { 2.0, 4.0, 6.0, 8.0, 10.0 }; expr=1|2|3|4; printf ( "%f", value[expr] ); }
Options- A. 2.000000
- B. 4.000000
- C. 8.000000
- D. Compilation error Discuss
Correct Answer: Compilation error
Explanation:
Size of any array in c cannot be constantan variable.
- 6. A function cannot be defined inside another function
Options- A. TRUE
- B. FALSE Discuss
Correct Answer: TRUE
Explanation:
A function cannot be defined inside the another function, but a function can be called inside a another function.
- 7. What will be output of the following c program ? #include int main() { int max-val=100; int min-val=10; int avg-val; avg-val =( max-val + min-val ) / 2; printf( "%d", avg-val ); return 0; }
Options- A. 55
- B. 105
- C. 60
- D. Compilation error Discuss
Correct Answer: Compilation error
Explanation:
We cannot use special character ? in the variable name.
Variable name can have only underscore.
- 8. SNOBOL is mainly used for
Options- A. Text Operation
- B. String operations
- C. List operations
- D. Numerical operations Also asked in: Bank Exams, Bank PO, Database Administrator, IT Trainer, Software Architect
Correct Answer: String operations
Explanation:
SNOBOL is a high-level computer programming language used especially in manipulating textual data. It is mainly used for string operations and was developed between 1962 and 1967.
- 9. What is the output of this C code? #include
int main() { int a = 1, b = 1; switch (a) { case a*b: printf("yes "); case a-b: printf("non"); break; } }
Options- A. yes
- B. no
- C. Compile time error
- D. yes no Discuss
Correct Answer: Compile time error
- 10. Which of the following statement is true?
Options- A. Cohesion is the OO principle most closely associated with hiding implementation details
- B. Cohesion is the OO principle most closely associated with making sure that classes know about other classes only through their APIs
- C. Cohesion is the OO principle most closely associated with making sure that a class is designed with a single, well-focused purpose
- D. None Discuss
Correct Answer: Cohesion is the OO principle most closely associated with making sure that a class is designed with a single, well-focused purpose
Explanation:
A refers to encapsulation, B refers to coupling
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