C Programming Quiz - 1 (1st October 2016)

C Programming Quiz - 1 (1st October 2016) with answer

1. Predict the output: int main() {             int number[5]={1,2,3,4,5};             printf("%d\n", number[5]);             return 0; } A. 5 B. 0 C. Error D. Any random number Answer: D Description: This will print any random number as number [5] is out of boundary of declared array. In c language, it is programmer’s responsibility to track array index out of bound error. 2. Predict the output: int main(){             int matrixA[3][3]={};             printf("MatrixA[1][0] = %d\n",  matrixA[1][0] );             return 0; } A. 0 B. 3 C. Error D. 10 Answer: A MatrixA[1][0] automatically initialized to zero due to compile time initialization. 3. Predict the output: #include<stdio.h> #include<string.h> int main() {             char str1[10]="abc", str2[10]="xyz", str3[10]="pqr", str4[10];             printf("%s",strcat(strcat(strcpy(str4, str3),str1),str2));             return 0; } A. pqrabcxyz B. pqrxyz C. abcxyzpqr D. Error Answer: A Here, inner most function strcpy will be executed first; and then outer functions strcat will be executed. 4. Predict the output: #include<stdio.h> int main(){     char *p, str[10]="Ahmedabad";     p = &str;     printf("%c",*p+1);     return 0; } A. A B. h C. m D. B Answer: D This will print B, *p is A (i.e. 65), when added 1 gives B (i.e. 66 ) 5. Predict the output: #include<stdio.h> void main(){     char arr[10]="The Indian Programmers";     printf("%s",arr); } A. The Indian B. The Indian Programmers C. The D. None of these Answer: A This will print first ten characters, as size of arr is 10.