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Last Updated: Oct 21, 2026
No. of Questions: 50 Questions & Answers with Testing Engine
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| Section | Objectives |
|---|---|
| I/O and NIO | - NIO.2 API - File I/O operations |
| Exception Handling | - Checked and unchecked exceptions - Try-with-resources and error handling |
| Java Core APIs | - java.lang, java.util collections framework - Date-Time API - Generics and type safety |
| Java Fundamentals | - Data types, operators, and control flow - Java language syntax and structure |
| Concurrency | - Threads and concurrency basics - Synchronization and concurrent collections |
| Functional Programming | - Lambda expressions - Functional interfaces - Streams API |
| Object-Oriented Programming | - Classes, objects, encapsulation - Inheritance, polymorphism, abstraction |
Given:
Which two should the module-info file include for it to represent the service provider interface?
Correct Answer: A,D 🗳️
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Given the content of the in. tart file:
23456789
and the code fragment:
What is the content of the out .txt file?
Correct Answer: F 🗳️
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Given the code fragment:
Which action enables the code to compile?
Correct Answer: D 🗳️
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Given:
What is the result?
Correct Answer: A 🗳️
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Which two code fragments compile?





Correct Answer: C,D 🗳️
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