The Value Exists... But HashMap Can't Find It 😳

🚨 Java Challenge #91

This is one of the most dangerous HashMap mistakes in Java.

The value is stored.
The key still exists.
The object reference is the same.

Yet Java returns null 🤯

Can you figure out why?

Choose carefully:

A. Java
B. null
C. 102
D. Compilation Error

This challenge tests:

✅ HashMap Internals
✅ hashCode() Contract
✅ equals() vs hashCode()
✅ Mutable Keys
✅ Java Interview Concepts

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