Given the Partial LinkedList Class Declaration Below, Select an Expression

question 73

Multiple Choice

Given the partial LinkedList class declaration below, select an expression to complete the empty method, which is designed to return true if the list contains no elements. public class LinkedList
{
Class Node
{
Public Object data;
Public Node next;
}
Private Node first;
) . .
Public boolean empty()
{
Return ________________________ ;
}
}

• A) first != null
• B) first == null
• C) first.data == null
• D) first.next == null

Develop skills in financial calculation and analysis.

Understand the tools and components of fiscal policy.

Comprehend the difference and relationship between fiscal policy, government spending, and taxation.

Identify the effects of fiscal policy on aggregate demand and supply.

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Definitions:

Action Potential

A short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, occurring in neuron signaling.

Neuron

A specialized cell transmitting nerve impulses; a nerve cell, which is the basic building block of the nervous system.

Neurotransmitters

Chemical substances in the brain and nervous system that facilitate communication between nerve cells.

Terminal Buttons

The small knobs at the end of an axon that release chemical signals from the neuron into the synapse.