1. Question 4 (3 points)

Analyze the snippet of code below. Identify the data structure that is used in this snippet of code, and explain the role of the defineMe instance variable.

1. (_) This code belongs to a collection class, which is using an array of integers, namely data. Instance variable defineMe serves as both a count of the elements that are present in the array data, and as an index to the next storage location of array data that is unoccupied and hence available to store a new integer.
2. (X) This code belongs to a collection class, which is using an array of integers, namely data. Instance variable defineMe serves only as a count of the elements that are present in the array data.
3. (_) This code belongs to a tree, which is using an array of integers, namely data. Instance variable defineMe serves as an index to the next storage location of array data that is unoccupied and hence available to store a new integer.
4. () This code belongs to a linked list, which is using an array of integers, namely data. Instance variable defineMe serves as both a count of the elements that are present in the array data, and as an index to the next storage location of array data that is unoccupied and hence available to store a new integer.

ublic class Question private int [ ] data; private int defineMe; public Question( ) \{ int INITIAL_CAPACITY =10; defineme =; data = new int [INITIAL_CAPACITY]; \} public void decipherMe(int element) \{ data[ defineMe++] = element; \}