Java module

Collections

Build collections fluency through short lessons, quizzes, and raid practice.

Boss RaidPractice

Reward

275 XP

Clear the Collections quest line

Difficulty

Intermediate

debugging

Duration

20m

timed-raid

Daily

55 XP

Collections five-question streak

Activities

Beginner Raid

Stage 1 of the Collections route.

Boss Encounter

Stage 2 of the Collections route.

Timed Challenge

Stage 3 of the Collections route.

Multiplayer Quiz

Stage 4 of the Collections route.

Practice Arena

Stage 5 of the Collections route.