A Stack Based on a Linked List Is Based on the Following

question 21

Multiple Choice

A stack based on a linked list is based on the following code
Class Node{
String element;
Node next;
Node(String el,Node n) {
Element = el;
Next = n;
}
}
Node top = null;
The code for testing whether the stack is empty is

• A) return top == null;
• B) return top = null;
• C) if (top == null.
• Return true;
• Else throw new RunTimeException(.;
• D) if (top == 0.
• Return true;
• Else
• Return false;

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Definitions:

Binocular Disparity

The difference in the images received by the two eyes due to their different positions, which contributes to depth perception.

Binocular Disparity

The difference in the visual images that each eye perceives because of the eyes’ horizontal separation; the basis of stereoscopic vision.

Convergence

A term that refers to the coming together of two or more things; in a physiological context, it describes the inward movement of the eyes toward each other when focusing on a close object.

Closure

The psychological tendency to seek a coherent and logical ending to an open issue or incomplete task.