Beginner Course
Java
Learn Java, the language of AP Computer Science, by building real programs and guiding Byte the bulldog through his world.
Want a Java tip from Byte?
Byte.java
Java /
0%
0 XP
Coder:
Name first!
Type your first name and last initial in the box at the top of the Exercise panel, then press Save. Your code editor unlocks right away.
Exercise
Example
Your task
Checks
Tab adds 2 spaces · Esc, then Tab, leaves
Console
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Class progress
Students open the lesson menu (bottom left), tap Get my progress code and send you the code through Google Classroom, email or a form. Paste the codes here, one per line. The newest code from each student wins.
Codes are kept only in this browser. Clear the box to start a new class.
Students sign in with their school Google accounts and their work saves automatically. This list updates by itself while they work.
"Last active" is the last time each student's work was saved.
Preview opens every lesson for you, without finishing the ones before it. Students never see it.
Roster
Not yet!
Welcome back!
Pick up where you left off:
Sign in to Byte.java
Use your school Google account. Your work saves automatically, so you can pick up where you left off on any computer.