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1Z0-811 Java Basics and Syntax Practice Question

Which method overloading is valid?

⚠ Common exam trap

Oracle often tests the misconception that changing the return type or access modifier alone is sufficient for method overloading, but the key requirement is a different parameter list.

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

✓

void print(int a) and void print(String s) {}

Method overloading in Java requires methods to have the same name but different parameter lists (different number, type, or order of parameters). Here, `void print(int a)` and `void print(String s)` have different parameter types (`int` vs `String`), which satisfies the overloading rule. The return type or access modifiers do not affect overloading.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    void print(int a) and void print(int b) {}

    Why it's wrong here

    Same signature, not overloading.

  • ✗

    void print(int a) and int print(int a) {}

    Why it's wrong here

    Same parameter list, different return type - not overloading.

  • ✗

    void print(int a) and private void print(int a) {}

    Why it's wrong here

    Same signature; access modifier doesn't change signature.

  • ✓

    void print(int a) and void print(String s) {}

    Why this is correct

    Different parameter types - valid overloading.

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