A system processes different types of media files. A base class `MediaFile` has a method `void process() throws IOException`. A subclass `VideoFile` overrides this method. According to Java's rules for overriding methods with checked exceptions, which of the following declarations for the `process` method in `VideoFile` are valid? (Select ALL that apply) ```mermaid classDiagram class MediaFile { +process() throws IOException } class VideoFile { +process() } MediaFile <|-- VideoFile ```

public void process() throws FileNotFoundException

public void process() throws RuntimeException

public void process() throws Exception

public void process() throws SQLException

A ClassCastException is thrown only at line n1

A ClassCastException is thrown only at line n2.

Given the code fragments below, which statement is true?

After line 11, one object is eligible for garbage collection.

After line 11, three objects are eligible for garbage collection.

After line 11, two objects are eligible for garbage collection.

After line 11, none of the objects are eligible for garbage collection.

Given the code fragment, what is the result?

A NullPointerException is thrown at runtime.

Which statement is true about the main() method?

It returns true if it is executed successfully at run time

It must be defined within a public class

1z0-808 Java SE 8 Programmer I (OCA) Practice Questions

Prepare for 1z0-808 with more than an answer.

432 questions in the full set20 sample questionsUpdated Jan 23, 2026

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Level: Associate
Valid for: Does not expire

Domains covered on the exam 9

Java Basics11%
Working With Java Data Types14%
Using Operators and Decision Constructs13%
Creating and Using Arrays8%
Using Loop Constructs9%
Working with Methods and Encapsulation15%
Working with Inheritance14%
Handling Exceptions9%
Working with Selected classes from the Java API17%

1
Given the code fragment, and given the requirements:

If the value of the qty variable is greater than or equal to 90, discount = 0.5
If the value of the qty variable is between 80 and 90, discount = 0.2

Which two code (A to E) fragments can be independently placed at line n1 to meet the requirements? (Choose two.)
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Correct answer: A, C
This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.

This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.
2
Given the code fragment, what is the result?
Show answer details
Correct answer: B
This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.
3
Given the code fragment below, which option, inserted at line n1, prints The Top element: 30?
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Correct answer: E
This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.
4
Given the code snippet from a compiled Java source file, and the output below it:

Which command should you run to obtain this output?
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Correct answer: C
This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.
5
A system processes different types of media files. A base class MediaFile has a method void process() throws IOException. A subclass VideoFile overrides this method. According to Java's rules for overriding methods with checked exceptions, which of the following declarations for the process method in VideoFile are valid? (Select ALL that apply)
classDiagram class MediaFile { +process() throws IOException } class VideoFile { +process() } MediaFile <|-- VideoFile
Show answer details
Correct answer: A, B, E
This is valid. An overriding method can declare a subclass of a checked exception declared by the superclass method. FileNotFoundException is a subclass of IOException.

This is valid. An overriding method can choose not to declare any checked exceptions, even if the superclass method does.

This is valid. An overriding method can declare any unchecked (runtime) exceptions regardless of what the superclass method declares, because they do not need to be handled at compile time.
6
Given the following:
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Correct answer: D
This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.
7
Given the code fragments below, which statement is true?
Show answer details
Correct answer: C
This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.
8
Given the code fragment, what is the result?
Show answer details
Correct answer: B
This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.
9
Given the code fragment, what is the result?
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Correct answer: D
Compilation fails due to violations of Java language rules such as incorrect syntax, type mismatches, missing declarations, or invalid operations. The compiler performs static analysis and identifies errors that would prevent the program from executing correctly, requiring fixes before the code can be successfully compiled into bytecode.
10
Which statement is true about the main() method?
Show answer details
Correct answer: A
This is one of the correct answers in a multi-select question. The selected options work together to satisfy the Java programming requirements, demonstrating proper syntax, valid type usage, correct method implementation, or appropriate design patterns. Each correct choice represents a valid solution component that addresses different aspects of the programming scenario while maintaining Java language compliance and best practices.

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