Summary of AP Computer Science Unit 7: ArrayLists

00:00:00 - 00:20:00

This video covers the basics of ArrayLists, including how to add, remove, and modify values in the list. It also demonstrates how to calculate averages and find the maximum value in an ArrayList. Finally, it covers how to sort an ArrayList using the sort method.

• 00:00:00 In this video, the author discusses ArrayLists and how they differ from arrays. They also demonstrate how to change the contents of an ArrayList using set methods.
• 00:05:00 ArrayLists are a convenient way to store multiple values in an organized manner. You can access and modify values in an arraylist using the get and set methods, and you can remove values using the remove method. Finally, the traversing method is essentially the same as traversing a regular array.
• 00:10:00 The video discusses how to calculate averages using an arraylist and an enhanced for loop. It also demonstrates how to find the maximum value in an arraylist using an integer wrapper and how to compare values.
• 00:15:00 This video discusses the algorithm for finding the maximum value in an array or list. The algorithm is the same regardless of the type of array or list.
• 00:20:00 This video covers the basics of how to sort arrays of data. The video discusses how to set up the arraylist, how to sort the list, and how to search for a value in the arraylist.