Core Java · interview question
In a HashMap, what happens when two keys have the same hash code?
Multiple choiceMediumchapter-4-curatedpremiumcore-javacode-reading-with-collections
Answer and explanation
Correct answer
A. Both keys are stored in a list
Why
When two keys have the same hash code, they are stored in a linked list or a red-black tree, depending on the implementation, allowing the map to handle collisions without losing data.
Test yourself on Core Java
A free test with instant, explained results. No account needed.
More Core Java questions
- What does executing a throw statement inside a catch block evaluate to?
- In Java, what happens if an exception is thrown in a method and not caught within that method?
- Which method would you use to add an element to a List at a specific position?
- Consider the following code snippet. What is the issue with the 'applyDiscount' method?
- How do you correctly initialize a BigDecimal to represent the monetary value 50.75?
- Why might using == with Integer objects sometimes return false even if they have the same value?