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Java SE 21 Developer Professional Practice Tests and PDFs

Comprehensive preparation materials designed by certification experts

100% Certified

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Java SE 21 Developer Professional

Exam Code:

1Z0-830

Vendor Name:

Oracle

Total Questions:

80

Last Updated Date:

March 9, 2025

Formate:

Practice Test Online

Downlaodable PDFs

Realistic Exam Simulation

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Real exam-like questions

Questions mirror the actual certification exam format and difficulty

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Timed quizzes

Practice you exam under time constraints to improve speed and accuracy

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Get immediate feedback with detailed answer explanations

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Price:

$199.00

1Z0-830 Test Features


Passing 1Z0-830  certification exams requires a significant amount of preparation. Proper study techniques and using the right resources can help you retain important information, understand key concepts, and ultimately pass the 1Z0-830  exam. Different methods are available to help candidates prepare effectively. Our practice tests simulate the 1Z0-830  actual exam environment, allowing candidates to experience the format, timing, and types of questions they will encounter. Taking multiple 1Z0-830 practice tests can improve time management skills and help you identify areas that need further review.
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1z0-830

Practice makes perfect! Take this quiz now to test your knowledge and boost your confidence for the real exam.

1 / 10

Which of the following is a valid switch expression in Java SE 21?

2 / 10

Which of the following statements is correct about records in Java?

3 / 10

Which of the following statements about switch expressions in Java SE 21 is true?

4 / 10

What is true about an object’s eligibility for garbage collection in Java?

5 / 10

Which method is used to replace all occurrences of a substring within a StringBuilder object?

6 / 10

How can you account for Daylight Saving Time when working with time-zone objects in Java?

7 / 10

Which Date-Time API class is used to represent a date without time and time-zone information?

8 / 10

What will be the output of the following code? ```java int a = 10; int b = 3; double c = (double) a / b; System.out.println(c); ```

9 / 10

What will be the result of the following expression: Math.sqrt(16) + Math.pow(2, 3) / 2?

10 / 10

Which statement about the life-cycle of an object in Java is true?

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