Java SE 21 Developer Professional Practice Tests and PDFs

Comprehensive preparation materials designed by certification experts

100% Certified

Weekly Update

100% Success

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

Experience the actual exam environment before test day

single product page

Real exam-like questions

Questions mirror the actual certification exam format and difficulty

single product page

Timed quizzes

Practice you exam under time constraints to improve speed and accuracy

single product page

Instant results & explanations

Get immediate feedback with detailed answer explanations

single product page

Progress tracking

Monitor your improvement over time with detailed analytics

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.
Quantity
Shopping cart
Sign in

No account yet?

0%
Marks_4_certs_icon

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?

Your score is

0%

Shop
Wishlist
0 items Cart
My account