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Oracle 1z1-809 exam is designed for Java developers who wish to validate their skills and knowledge of Java SE 8 programming. 1z1-809 exam is also known as the Java SE 8 Programmer II exam and is a crucial step for professionals who wish to advance their careers in the Java programming field. Passing 1z1-809 exam demonstrates that the candidate has a comprehensive understanding of Java SE 8 and can develop complex Java applications.

The Oracle 1z1-809 Exam consists of 80 multiple-choice questions and is 150 minutes long. It covers a wide range of topics, including Java Class Design, Generics and Collections, Lambda Expressions, Java Stream API, Exceptions and Assertions, Concurrency, JDBC, and more. Candidates must score at least 65% to pass the exam and earn the certification.

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Oracle Java SE 8 Programmer II Sample Questions (Q197-Q202):

NEW QUESTION # 197
Given the code fragment:

You have been asked to define the ProductCodeclass. The definition of the ProductCodeclass must allow c1instantiation to succeed and cause a compilation error on c2instantiation.
Which definition of ProductCodemeets the requirement?

Answer: C

NEW QUESTION # 198
Which statement is true about the single abstract method of the java.util.function.Function interface?

A. It accepts an argument and produces a result of any data type.
B. It accepts one argument and returns void.
C. It accepts one argument and returns boolean.
D. It accepts one argument and always produces a result of the same type as the argument.

Answer: D

Explanation:
Explanation/Reference:
Reference: http://winterbe.com/posts/2014/03/16/java-8-tutorial/ (functions)

NEW QUESTION # 199
Given:

What is the result?

A. 10 : 22 : 6
B. 10 : 22 : 20
C. 10 : 22 : 22
D. 10 : 30 : 6

Answer: C

NEW QUESTION # 200
Given the code fragment:

Which code fragment, when inserted at line 7, enables printing 100?

A. ToIntFunction funRef = e -> e + 10;int result = funRef.apply (value);
B. Function<Integer> funRef = e -> e + 10;Integer result = funRef.apply(value);
C. IntFunction funRef = e -> e + 10;Integer result = funRef.apply (10);
D. ToIntFunction<Integer> funRef = e -> e + 10;int result = funRef.applyAsInt (value);

Answer: B

NEW QUESTION # 201
Given the code fragment

Which code fragments, inserted independently, enable the code compile?

A. this.fvar = 200;
Test2.cvar = 400;
B. cvar = 400;
C. fvar = 200;
cvar = 400;
D. t.fvar = 200;
E. t.fvar = 200;
Test2.cvar = 400;
F. this.fvar = 200;
this.cvar = 400;

Answer: B

NEW QUESTION # 202
......

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Test Oracle 1z1-809 Valid, 1z1-809 Real Exam

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100% Pass Pass-Sure Oracle - Test 1z1-809 Valid

Oracle Java SE 8 Programmer II Sample Questions (Q197-Q202):

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