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Exam 1z1-809 Review, 1z1-809 Certification Exam Dumps

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Oracle Java SE 8 Programmer II Sample Questions (Q84-Q89):

NEW QUESTION # 84
Given the code fragments:

and

What is the result?

A. FranceNot Found
B. Optional [France]Optional [NotFound]
C. FranceOptional[NotFound]
D. Optional[France]Not Found

Answer: A

NEW QUESTION # 85
Given:
public class Test<T> {
private T t;
public T get () {
return t;
}
public void set (T t) {
this.t = t;
}
public static void main (String args [ ] ) {
Test<String> type = new Test<>();
Test type 1 = new Test ();//line n1
type.set("Java");
type1.set(100);//line n2
System.out.print(type.get() + " " + type1.get());
}
}
What is the result?

A. java.lang.string@<hashcode
B. A compilation error occurs. To rectify it, replace line n2 with:
type1.set (Integer(100));
C. Java 100
D. A compilation error occurs. To rectify it, replace line n1 with:
Test<Integer> type1 = new Test<>();

Answer: D

NEW QUESTION # 86
Given:

and

Which interface from the java.util.function package should you use to refactor the class Txt?

A. Supplier
B. Predicate
C. Consumer
D. Function

Answer: D

Explanation:
References:

NEW QUESTION # 87
Given:

and the code fragment:

What is the result?

A. 2000.0
B. 1500.0
C. A compilation error occurs.
D. 0.0

Answer: B

NEW QUESTION # 88
Given the content:

and given the code fragment:

Which two code fragments, when inserted at line 1 independently, enable the code to print "Wie geht's?"

A. currentlocale = new Locale();currentLocale.setLanguage ("de");currentLocale.setRegion ("DE");
B. currentLocale = Locale.GERMAN;
C. currentLocale = new Locale ("de", "DE");
D. currentLocale = new Locale.Builder ().setLanguage ("de").setRegion ("DE").build();
E. currentLocale = Locale.getInstance(Locale.GERMAN,Locale.GERMANY);

Answer: A,D

NEW QUESTION # 89
......

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