APCS: AP Computer Science A @sfhs

adding_sound_to_your_application - [Making and Editting your own sounds]

frchris (frchris@undisclosed.example.com) — 2026-05-06T16:17:48+00:00

Adding Sound to Your Application Here is a Java method to play a short bell sound effect that is in a wav format. You will need the file bell.wav import javax.sound.sampled.AudioSystem; import javax.sound.sampled.Clip; public void playBell() { File bellFile = new File("bell.wav"); try { Clip bell = AudioSystem.getClip(); bell.open(AudioSystem.getAudioInputStream(bellFile)); bell.start(); } catch (Exception e) { e.printStackTrace(); } }

start - [Projects]

frchris (frchris@undisclosed.example.com) — 2026-05-06T15:35:33+00:00

2025 AP Comp Sci A Wiki New (2025) Course and Exam Description used for the first time in May 2026 Summer Assignment - See AP Comp Sci A (Summer) in Portals (Blackbaud) under Groups Overview of the NEW 2025 Course Description Starter Code for Old AP Questions * 2013 to present * 2003-2012 Projects * Starter code your own applications * RaspberyPi Labs

morsecode

frchris (frchris@undisclosed.example.com) — 2026-05-05T18:40:03+00:00

Morse Coder ToneTester This demonstrates how to generate a morse code tone. The timing is all based on the length of the “dit” ToneTester demonstrates how to use the javax sound library to generate a morse code “CQ CQ” which is what a HAM radio operator will call to seek out a conversation from anyone who might be able to be listening

peekaboo

frchris (frchris@undisclosed.example.com) — 2026-04-26T19:56:22+00:00

Peek A Boo This is a educational game or challenge that also demonstrates a timer and a KeyListener. The user is presented with a letter to type, then disappears They then will need to type that key. Now try this: * keep score: show how many correct and incorrect

peekaboo.java - created

frchris (frchris@undisclosed.example.com) — 2026-04-26T19:54:28+00:00

20_questions

frchris (frchris@undisclosed.example.com) — 2026-04-13T14:37:33+00:00

20 Questions Game This is the classic game you can play in the car on a road trip. It usually starts with One person thinking of something that is either an animal, or a mineral, or a vegetable. The player gets 20 chances to ask a yes or no question. Here is a video of

questions20game.java - created

frchris (frchris@undisclosed.example.com) — 2026-04-13T14:37:19+00:00

question.java - created

frchris (frchris@undisclosed.example.com) — 2026-04-13T14:36:26+00:00

questions.txt - created

frchris (frchris@undisclosed.example.com) — 2026-04-13T14:35:36+00:00

twentyquestionsgamegui.java - created

frchris (frchris@undisclosed.example.com) — 2026-04-13T14:35:17+00:00

qtr_3_exam_study_guide - [Preparation Suggestions]

frchris (frchris@undisclosed.example.com) — 2026-03-06T16:48:05+00:00

Qtr 3 Study Guide Topics Covered To prepare for the actual AP exam in May, we will be using several practice exams from the College Board in the next few months, starting with the Qtr 3 Exam. The AP exam in May will have two parts: 42 Multiple choice (90 minutes, worth 55% of your score) and 4 Free Response Questions (90 min worth 45% of your score). This year's AP exam is on your chromebook. This years Qtr 3 Exam will be taken on paper in three parts. Part 1 will be on our last classduring …

virtual_pet - [Part C]

frchris (frchris@undisclosed.example.com) — 2026-03-01T20:02:36+00:00

Virtual Pet Example of a Virtual Pet Activity 3 public class VirtualPet { /* * Activity 3 * @author (your name) * @version (a version number or a date) * * enter code for instance variables, constructor, * getName, and toString methods * **/ public VirtualPet(String str) { } public String getName(){ return ""; } }

peteat.gif - created

frchris (frchris@undisclosed.example.com) — 2026-03-01T19:19:54+00:00

pethappy.gif - created

frchris (frchris@undisclosed.example.com) — 2026-03-01T19:18:21+00:00

binarysearch.java - created

frchris (frchris@undisclosed.example.com) — 2026-01-28T21:26:38+00:00

sortitout.java

frchris (frchris@undisclosed.example.com) — 2026-01-28T21:23:45+00:00

sqrt_r_1_-_r_2_.png - created

frchris (frchris@undisclosed.example.com) — 2025-06-14T17:35:38+00:00

reviewanalysistesterclasses.txt - created

frchris (frchris@undisclosed.example.com) — 2025-05-28T03:41:12+00:00

book.java - created

frchris (frchris@undisclosed.example.com) — 2025-05-28T03:05:59+00:00

grid.java - created

frchris (frchris@undisclosed.example.com) — 2025-01-07T15:47:01+00:00