Preparing for the APCS Exam
This page is derived from (but not a copy of) the College
Board documentation on their APCS exam. Everything you need to know
to pass their test is documented somewhere in our website [Real
Soon Now], and most of it is built into the programs you already
wrote (if you followed our advice). If you learn this material (and can
pass the APCS test, even if you don't actually take
it) you will have a pretty good command of the Java language, and you can
pick up whatever else you need to know on the fly when writing larger and
more complex programs. If you wish to take the test, you probably should
spend some time on
their site and try to do their practice questions.
[This page is still under development]
Contents
Java Class Library
More TBA
Java Class Library
You are expected to use these standard Java methods and constants when
appropriate. You will be docked points if you write your own code where
one of these would do the job. The links point to our documentation on
these items (some TBD), but you probably should
also read and understand the official documents (for example Google "Java
String class"). They say that a "Java Quick Reference" page is included
in the exam booklet when you take the test, so you probably do not need
to memorize this stuff, just know what it does.
String Class
String(String str)
int length()
String substring(int from, int
to)
String substring(int from)
int indexOf(String str)
boolean equals(String other)
int compareTo(String other)
Integer Class
Integer(int value)
Integer.MIN_VALUE
Integer.MAX_VALUE
int intValue()
Double Class
Double(double value)
double doubleValue()
Math Class
static int abs(int x)
static double abs(double x )
static double pow(double base, double exponent)
static double sqrt(double x)
static double random()
ArrayList Class
int size()
boolean add(E obj)
void add(int index, E obj)
get(int index)
set(int index, E obj)
remove(int index)
Object Class
boolean equals(Object other)
String toString()
Draft: 2022 April 12