AP CSA CodeHS 7.3 Flashcards

Study Notes

Traversing Odds

Demonstrates the use of an ArrayList to store odd numbers.
Pre-loads the list with integers from 1 to 20.
Calls the removeEvens method to filter out even numbers.
The removeEvens method iterates through the list, checking the modulus against 2, and removes even numbers while adjusting the index to avoid skipping elements.

ArrayList Helper Methods

Introduces helper methods for manipulating ArrayList objects.
print method displays all elements in an ArrayList.
condense method combines adjacent elements into one, effectively halving the size.
duplicate method inserts a duplicate of each element after its original in the list, effectively doubling the size.
Example usage includes creating an ArrayList of strings and applying the helper methods.

Road Trip Functionality

Implements a RoadTrip class to manage trip stops and calculate distance.
Allows adding stops with associated geographical coordinates (latitude, longitude).
getNumberOfStops returns the total count of stops added to the trip.
getTripLength calculates the total distance between consecutive stops using the Haversine formula.
The toString method formats the trip's stops for output.
GeoLocation class encapsulates location data, including distance calculations between locations based on latitude and longitude.

Description

Test your knowledge with these flashcards on traversing odds in Java. This quiz covers key concepts from section 7.3.6 of the AP Computer Science A curriculum. Understand how to manipulate ArrayLists and remove even numbers effectively.