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← Core Java theorytheory 0/50 · 0%
level 1
Curious · 0 XP
streak
0d
perfect
0
badges
0
100 XP to Apprentice
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36. Annotations
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1 min read2 questionsup to 50 XPtopic 36/50
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AI translates the explanation and quiz text while preserving code and answer scoring.
How to study this topic
- 1. Read the explanation once end to end, skipping the code.
- 2. Re-read the code snippets and say out loud what each line does.
- 3. Answer the quiz without scrolling back — that is the real check.
- 4. Read every explanation, even for the answers you got right.
Scoring
- · Up to 30 XP from quiz accuracy.
- · +15 XP for a perfect first attempt.
- · +5 XP while a 3-day streak is running.
- · 75% or higher marks the topic complete.
Check your understanding
1. Common marker for deprecation?
2. Retention levels?
Badges
First light
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3 perfect first-try quizzes
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Grinder
Earn 500 XP
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Earn 1500 XP