Thread: stuff from the whole year that I need to review for the AP Exam

Here are the concepts that I don't get from computer science. I don't think I learned them well from just the textbook alone. Does anyone know where I could review all of this:

-What is OBOB?

-Array Lists review (like how to find the indices of an object in an Array List)

-string methods

-equals method(when to use it?)

-addresses

-autoboxing and autounboxing

-why arrays start from 0

-IndexOutOfBoundsException

-modifier method (and why do you need to call it to change an object)

-term "immutable"

-aliasing

-aliasing error

-overloaded methods

-what do they mean ("override a method")

-review subclass's fields

-abstract classes

-polymorphism

-grids

-bugs, rocks, and flowers

-critters

-mergesort

-location

-Grid<E>

-Interfaces

-Actor

-comparable<T> interface

-loop invariants

-sequential and binary search

-selection sort

-system.out.printf

-java.util.random

-run-time event

-run-time errors (called exceptions)

-checked exception

-unchecked exception means "not fixable?"

-throwing your own exceptions

-what is a compile time error

-3 methods of List and ArrayList

-encapsulation

-client class

-information hiding

-static methods

-boolean flags

-literal strings

I know that seems like a lot. But what percentage of that do you think I could review in two weeks? Some of this is from GridWorld by the way. I'm just letting you know. So, if anyone has read the text, I know I can't review all of Java in two weeks, but out of the important concepts from here that I'm not getting, what could parts I realistically review in two weeks? I am trying to get 3 out of 5 on the AP Exam. I've worked hard but I think I'm not doing well. I promise I'll be realistic about what I can achieve in two weeks. Thank you so much.

What percentage? That's tough to answer, because what we know is that you weren't able to learn them in a year, so learning the topics in two weeks seems unreasonable.

As for where to review the topics, all are discussed at various depths all over the Internet. Simply knowing the definitions may not be enough. How they are applied (or not) in a program might also be useful. Some of that experience you've gained.

Don't give up. Look up those topics in your book and then search the Internet for the ones the book explanation is not sufficient. Look for examples that demonstrate the principles when possible. Copy the examples, run them. Study hard.