Question

The sales made by 5 salesmen selling 5 products is stored in a two-dimensional array of integer data type. How many bytes does the array occupy?

• A. 25
• B. 200
• C. 50
• D. 100

Hint:

For array memory questions, first find the total number of elements, then multiply by the size of one element. For an \textbf{int} in Java, always use \(4\) bytes.

Answer 1

The Correct Option is D

Step 1: Find the total number of elements in the two-dimensional array.
The question says that the sales data of \(5\) salesmen and \(5\) products is stored in a two-dimensional array. This means the array has: \[ 5 \times 5 = 25 \] elements in total.
So, the array contains \(25\) integer values.
Step 2: Recall the memory occupied by one integer.
In Java, an int data type occupies \(4\) bytes of memory.
Therefore, each element of the array will take: \[ 4 \text{ bytes} \] Step 3: Calculate the total memory occupied.
Since there are \(25\) integer elements, total memory occupied by the array is: \[ 25 \times 4 = 100 \] bytes.
Step 4: Match the answer with the given options.

• (A) 25: Incorrect, this is only the number of elements.
• (B) 200: Incorrect.
• (C) 50: Incorrect.
• (D) 100: Correct.

Hence, the array occupies 100 bytes.
Final Answer:\(100\) bytes.