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1Z0-829 Practice Question: Handling Date, Time, Text, Numeric and Boolean Values
Match each annotation to its retention policy.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
@Override: SOURCE
Retention policies determine how long annotations are retained: SOURCE (discarded by compiler), CLASS (retained in class file but not at runtime), RUNTIME (retained at runtime via reflection). @Override and @SuppressWarnings are SOURCE because they are only used by the compiler. @Deprecated and @FunctionalInterface are RUNTIME because they are accessed via reflection.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
@Override: SOURCE
Why this is correct
@Override is retained in source code only; the compiler uses it to check overriding but discards it after compilation.
- ✗
@Override: RUNTIME
Why it's wrong here
Incorrect — @Override has retention policy SOURCE, not RUNTIME, as it is not needed at runtime.
- ✓
@Deprecated: RUNTIME
Why this is correct
@Deprecated is retained at runtime so that tools and reflection can determine if an element is deprecated.
- ✗
@Deprecated: SOURCE
Why it's wrong here
Incorrect — @Deprecated has retention policy RUNTIME, not SOURCE, because deprecation information is needed at runtime.
- ✓
@FunctionalInterface: RUNTIME
Why this is correct
@FunctionalInterface is retained at runtime to allow the compiler and reflection to check functional interface contracts.
- ✓
@SuppressWarnings: SOURCE
Why this is correct
@SuppressWarnings is retained in source code only, as it only affects compiler warnings and is discarded after compilation.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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