Core Java Programming Course- Array Exercise

The video tutorial covers arrays, a common topic in interviews, and demonstrates how to reverse an array's contents. It explains the logic of using a for loop to swap elements from the start and end towards the middle. The tutorial also addresses handling arrays with both even and odd numbers of elements, ensuring the same logic applies. The session concludes with a demonstration of the reversed array and highlights the importance of understanding this concept for interviews.

Why are arrays considered a hot topic in interviews?

• They are easy to understand.

• They are frequently used in data structures.

• They are not used in real-world applications.

• They are only used in academic settings.

What is the primary logic used to reverse an array?

• Using a single loop from start to end.

• Swapping elements from the start and end towards the middle.

• Reversing the array using built-in functions.

• Sorting the array in descending order.

What is the purpose of the temporary variable in the array reversal process?

• To hold the value of an element temporarily during swapping.

• To store the index of the middle element.

• To store the length of the array.

• To count the number of swaps.

How many loop variables are used in the array reversal process?

• Four

• One

• Two

• Three

What is the role of the variable 'J' in the array reversal process?

• It stores the length of the array.

• It iterates from the last element towards the middle.

• It is used to count the number of iterations.

• It iterates from the start to the middle.

What happens if the number of elements in the array is odd?

• The program will not work.

• The middle element remains unchanged.

• The program will throw an error.

• The array will not be reversed.

What is the outcome of the array reversal program when executed?

• The array is sorted in descending order.

• The array elements are reversed.

• The array is sorted in ascending order.

• The array remains unchanged.