1. Which of the following is the correct way to find out the number of elements currently present in an ArrayList Collection called arr?






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MCQ->Which of the following statements are correct about an ArrayList collection that implements the IEnumerable interface? The ArrayList class contains an inner class that implements the IEnumerator interface. An ArrayList Collection cannot be accessed simultaneously by different threads. The inner class of ArrayList can access ArrayList class's members. To access members of ArrayList from the inner class, it is necessary to pass ArrayList class's reference to it. Enumerator's of ArrayList Collection can manipulate the array.....
MCQ->What will be the output of the program ? #include<stdio.h> int main() { static int arr[] = {0, 1, 2, 3, 4}; int p[] = {arr, arr+1, arr+2, arr+3, arr+4}; int ptr=p; ptr++; printf("%d, %d, %d\n", ptr-p, ptr-arr, ptr); ptr++; printf("%d, %d, %d\n", ptr-p, ptr-arr, ptr); ++ptr; printf("%d, %d, %d\n", ptr-p, ptr-arr, ptr); ++ptr; printf("%d, %d, %d\n", ptr-p, ptr-arr, ptr); return 0; }....
MCQ->What will be the output of the following program? #include<iostream.h> struct IndiaBix { int arr[5]; public: void BixFunction(void); void Display(void); }; void IndiaBix::Display(void) { for(int i = 0; i < 5; i++) cout<< arr[i] << " " ; } void IndiaBix::BixFunction(void) { static int i = 0, j = 4; int tmp = arr[i]; arr[i] = arr[j]; arr[j] = tmp ; i++; j--; if(j != i) BixFunction(); } int main() { IndiaBix objBix = {{ 5, 6, 3, 9, 0 }}; objBix.BixFunction(); objBix.Display(); return 0; }....
MCQ->What will be the output of the following program? #include<iostream.h> struct BixArray { int arr[5]; public: void BixFunction(); void Display(); }; void BixArray::BixFunction() { static int i = 0, j = 4; i++; j--; if(j > 0) BixFunction(); int tmp = arr[i]; arr[i] = arr[j]; arr[j] = tmp; i--; j++; } void BixArray::Display() { for(int i = 0; i < 5; i++) cout<< arr[i] << " "; } int main() { BixArray objArr = {{5, 6, 3, 9, 0}}; objArr.BixFunction(); objArr.Display(); return 0; }....
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