This 1Z0-829 practice question tests your understanding of handling exceptions. 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.
A method reads a file and throws IOException. Which of the following is the correct way to declare the method?
public void readFile() throws RuntimeException { ... }
Why wrong: Wrong exception type; IOException is checked.
public void readFile() throws Exception { ... }
Why wrong: Too generic; should be specific IOException.
public void readFile() { ... } // assumes try-catch inside
Why wrong: Must handle or declare the checked exception.
public void readFile() throws IOException { ... }
Correctly declares IOException.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
public void readFile() throws IOException { ... }
Option D is correct because the method explicitly declares that it throws IOException, which is a checked exception. In Java, if a method can throw a checked exception like IOException, it must either handle it with a try-catch block or declare it in the throws clause. This allows the caller to handle the exception appropriately.
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.
public void readFile() throws RuntimeException { ... }
Why it's wrong here
Wrong exception type; IOException is checked.
public void readFile() throws Exception { ... }
Why it's wrong here
Too generic; should be specific IOException.
public void readFile() { ... } // assumes try-catch inside
Why it's wrong here
Must handle or declare the checked exception.
public void readFile() throws IOException { ... }
Why this is correct
Correctly declares IOException.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse checked and unchecked exceptions, or think that declaring a broader exception like Exception is acceptable, but the exam tests precise exception handling where the exact checked exception must be declared.
Detailed technical explanation
Checked exceptions like IOException are part of Java's exception hierarchy and must be either caught or declared. The throws clause is part of the method signature and is checked at compile time; if a method throws a checked exception without declaring it, the code will not compile. In real-world file I/O operations, such as reading a file with FileInputStream or BufferedReader, IOException is commonly thrown for issues like file not found or read errors, making its declaration essential for proper error handling.
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 1Z0-829 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
Handling Exceptions — This question tests Handling Exceptions — Read the scenario before looking for a memorised answer..
The correct answer is: public void readFile() throws IOException { ... } — Option D is correct because the method explicitly declares that it throws IOException, which is a checked exception. In Java, if a method can throw a checked exception like IOException, it must either handle it with a try-catch block or declare it in the throws clause. This allows the caller to handle the exception appropriately.
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 25, 2026
This 1Z0-829 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-829 exam.
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