[Solved] Identify the error in the following code snippet related to method overloading:class Calculator { int calculate(int a) { return a * 2; } double calculate(int a) { return a / 2.0; } } | Java

Java - Polymorphism

Identify the error in the following code snippet related to method overloading:

class Calculator {
    int calculate(int a) { return a * 2; }
    double calculate(int a) { return a / 2.0; }
}

AMethods have different parameter types

BMethods have the same signature differing only by return type

CMethods differ by number of parameters

DNo error, valid overloading

Step-by-Step Solution

Solution:

Step 1: Check method signatures
Both methods have identical parameter lists (int a).
Step 2: Understand overloading rules
Overloading requires different parameter lists; return type alone cannot differentiate.
Final Answer:
Methods have the same signature differing only by return type -> Option B
Quick Check:
Return type alone doesn't overload methods [OK]

Quick Trick: Overloading requires different parameters, not just return type [OK]

Common Mistakes:

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