Quick Answer
The correct answer is the pair `void print(int a)` and `void print(String s)`. This is valid because method overloading rules in Java require methods to share the same name but differ in their parameter lists—either by number, type, or order of parameters. Here, the two `print` methods have different parameter types (`int` vs `String`), which satisfies the core rule; the return type and access modifiers are irrelevant to overloading. On the Oracle Java Foundations 1Z0-811 exam, this concept frequently appears in questions that test your ability to distinguish overloading from overriding, often with a trap where two methods differ only by return type—which is never valid. A common memory tip is to remember that the compiler only looks at the method signature (name + parameter list) to resolve overloaded calls, so focus solely on the parameters. Think of it as “same name, different ingredients” to keep the rule clear.
This 1Z0-811 practice question tests your understanding of java basics and syntax. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which method overloading is valid?
void print(int a) and void print(int b) {}
Why wrong: Same signature, not overloading.
void print(int a) and int print(int a) {}
Why wrong: Same parameter list, different return type - not overloading.
void print(int a) and private void print(int a) {}
Why wrong: Same signature; access modifier doesn't change signature.
void print(int a) and void print(String s) {}
Different parameter types - valid overloading.
Answer choices
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) {}
Option D is correct because 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.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
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.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
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.
Detailed technical explanation
In Java, method overloading is resolved at compile time (static polymorphism) based on the method signature, which includes the method name and parameter types (number, type, and order). The return type, access modifiers, and thrown exceptions are not part of the signature. A real-world scenario is the `System.out.println()` method, which is overloaded with many versions (e.g., `println(int)`, `println(String)`, `println(boolean)`) to handle different data types without requiring the programmer to remember different method names.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the 1Z0-811 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Java Basics and Syntax — This question tests Java Basics and Syntax — Read the scenario before looking for a memorised answer..
The correct answer is: void print(int a) and void print(String s) {} — Option D is correct because 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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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