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[General] 1z0-809 Reliable Test Pattern | 1z0-809 Valid Exam Camp

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【General】 1z0-809 Reliable Test Pattern | 1z0-809 Valid Exam Camp

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Oracle 1z0-809 Certification Exam is designed for Java programmers who want to expand their knowledge and skills in Java programming. 1z0-809 exam is the second level of certification in the Java SE 8 certification path and is intended for individuals who have already passed the 1z0-808 exam. The 1z0-809 exam focuses on more advanced topics such as collections, generics, streams, concurrency, and JDBC.
Oracle 1z1-809 (Java SE 8 Programmer II) Certification Exam is a globally recognized and widely respected certification program designed for professionals who wish to validate their skills and knowledge in Java programming. Java SE 8 Programmer II certification exam is intended for individuals who have a strong foundation in the basics of Java programming and who have already passed the Oracle 1z0-808 (Java SE 8 Programmer I) Certification Exam.
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The 1z1-809 exam is designed to not only test IT professionals' skills and knowledge of the Java SE 8 programming language, but also their ability to use it effectively in real-world scenarios. Topics covered in the exam include advanced Java concepts such as generics, collections, lambda expressions, and parallel streams.
Oracle Java SE 8 Programmer II Sample Questions (Q81-Q86):NEW QUESTION # 81
Given:

Given the code fragment:

Which two sets of actions, independently, enable the code fragment to print Fit?
  • A. At line n1 insert: import clothing;
    At line n2 insert: String color = Shirt.getColor ( ) ;
  • B. At line n1 insert: import clothing.Shirt ;
    At line n2 insert: String color = getColor ( ) ;
  • C. At line n1 insert: import clothing.*;
    At line n2 insert: String color = Shirt.getColor ( ) ;
  • D. At line n1 no changes required.
    At line n2 insert: String color = Shirt.getColor ( ) ;
  • E. At line n1 insert: import static clothing.Shirt.getcColor;
    At line n2 insert: String color = getColor ( ) ;
Answer: C,E

NEW QUESTION # 82
Which two reasons should you use interfaces instead of abstract classes? (Choose two.)
  • A. You want to take advantage of multiple inheritance of type.
  • B. You expect that classes that implement your interfaces have many common methods or fields, or require access modifiers other than public.
  • C. You want to share code among several closely related classes.
  • D. You want to declare non-static on non-final fields.
  • E. You expect that unrelated classes would implement your interfaces.
Answer: A,E

NEW QUESTION # 83
Given:
public class Foo<K, V> {
private K key;
private V value;
public Foo (K key, V value) (this.key = key; this value = value;)
public static <T> Foo<T, T> twice (T value) (return new Foo<T, T> (value, value); )
public K getKey () (return key;)
public V getValue () (return value;)
}
Which option fails?
  • A. Foo<String, String> pair = Foo.<String>twice ("Hello World!");
  • B. Foo<String, String> grade = new Foo <> ("John", "A");
  • C. Foo<String, Integer> mark = new Foo<String, Integer> ("Steve", 100);
  • D. Foo<?, ?> percentage = new Foo <> (97, 32);
Answer: D

NEW QUESTION # 84
Given the code fragment:

What is the result?
  • A. A compilation error occurs at line n2.
  • B. 0
  • C. 1
  • D. A compilation error occurs at line n1.
Answer: B

NEW QUESTION # 85
Given that data.txt and alldata.txt are accessible, and the code fragment:

What is required at line n1to enable the code to overwrite alldata.txtwith data.txt?
  • A. br.flush();
  • B. bw.flush();
  • C. bw.writeln();
  • D. br.close();
Answer: B

NEW QUESTION # 86
......
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