This 1Z0-811 practice question tests your understanding of arrays and methods. 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 TWO statements are true about method overloading in Java?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Overloaded methods can have different parameter lists.
Option B is correct because method overloading in Java allows multiple methods to share the same name but have different parameter lists (different number, type, or order of parameters). This enables compile-time polymorphism, where the compiler selects the appropriate method based on the arguments provided at the call site.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Overloaded methods must have the same number of parameters.
Why it's wrong here
They can have different numbers.
✓
Overloaded methods can have different parameter lists.
Why this is correct
Different number or type of parameters.
Related concept
Read the scenario before looking for a memorised answer.
✓
Overloaded methods must have the same name.
Why this is correct
By definition, overloading means same name.
Related concept
Read the scenario before looking for a memorised answer.
✗
Overloaded methods must have different return types.
Why it's wrong here
Return type is not used for overloading.
✗
Overloaded methods can have different names.
Why it's wrong here
Must have the same name.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse method overloading with method overriding, mistakenly thinking return types must differ or that parameter counts must be identical, when in fact overloading only requires different parameter lists and the same method name.
Detailed technical explanation
How to think about this question
Under the hood, Java uses the method signature (name + parameter types) for compile-time resolution via the Java Language Specification (JLS §8.4.9). Overloading is resolved statically, not dynamically, meaning the compiler determines which method to invoke based on the argument types at compile time. A subtle behavior is that widening conversions (e.g., int to long) are preferred over boxing or varargs when resolving overloaded methods, which can lead to unexpected method selection in complex scenarios.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Arrays and Methods — This question tests Arrays and Methods — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Overloaded methods can have different parameter lists. — Option B is correct because method overloading in Java allows multiple methods to share the same name but have different parameter lists (different number, type, or order of parameters). This enables compile-time polymorphism, where the compiler selects the appropriate method based on the arguments provided at the call site.
What should I do if I get this 1Z0-811 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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