1Z0-829 Working with Arrays and Collections Practice Question
Which THREE are methods of the Map.Entry interface? (Java 17)
⚠ Common exam trap
Watch out — candidates often confuse methods of the Map interface (like getOrDefault) with methods of the Map.Entry interface, or assume a getHash() method exists due to familiarity with hash-based collections like HashMap.
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
✓
getValue()
The Map.Entry interface in Java defines the getValue() method, which returns the value associated with the entry's key. This method is part of the core contract for accessing key-value pairs within a Map.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
getValue()
Why this is correct
Returns the value.
- ✗
getHash()
Why it's wrong here
No such method.
- ✓
getKey()
Why this is correct
Returns the key.
- ✓
setValue(V value)
Why this is correct
Sets the value.
- ✗
getValueOrDefault()
Why it's wrong here
Not a method.
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