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Latest Java SE 8 Programmer II practice test & 1z0-809 troytec pdf

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Oracle Java SE 8 Programmer II Sample Questions (Q19-Q24):

NEW QUESTION # 19
Given the code fragments:

What is the result?

A. Compilation fails only at line n2.
B. Compilation fails only at line n1.
C. RToo1 :: export
Too1 :: export
D. Too1 :: export
Too1 :: export
E. Compilation fails at both line n1 and line n2.

Answer: B

NEW QUESTION # 20
Given the code fragment:

What is the result?

A. 0
B. Compilation fails.
C. 1
D. 2

Answer: D

NEW QUESTION # 21
Given:
class ImageScanner implements AutoCloseable {
public void close () throws Exception {
System.out.print ("Scanner closed.");
}
public void scanImage () throws Exception {
System.out.print ("Scan.");
throw new Exception("Unable to scan.");
}
}
class ImagePrinter implements AutoCloseable {
public void close () throws Exception {
System.out.print ("Printer closed.");
}
public void printImage () {System.out.print("Print."); }
}
and this code fragment:
try (ImageScanner ir = new ImageScanner();
ImagePrinter iw = new ImagePrinter()) {
ir.scanImage();
iw.printImage();
} catch (Exception e) {
System.out.print(e.getMessage());
}
What is the result?

A. Scan. Unable to scan. Printer closed.
B. Scan. Unable to scan.
C. Scan.Scanner closed. Unable to scan.
D. Scan.Printer closed. Scanner closed. Unable to scan.

Answer: C

NEW QUESTION # 22
Given the definition of the Emp class:
public class Emp
private String eName;
private Integer eAge;
Emp(String eN, Integer eA) {
this.eName = eN;
this.eAge = eA;
}
public Integer getEAge () {return eAge;}
public String getEName () {return eName;}
}
and code fragment:
List<Emp>li = Arrays.asList(new Emp("Sam", 20), New Emp("John", 60), New Emp("Jim", 51)); Predicate<Emp> agVal = s -> s.getEAge() > 50;//line n1 li = li.stream().filter(agVal).collect(Collectors.toList()); Stream<String> names = li.stream()map.(Emp::getEName);//line n2 names.forEach(n -> System.out.print(n + " ")); What is the result?

A. Sam John Jim
B. A compilation error occurs at line n1.
C. A compilation error occurs at line n2.
D. John Jim

Answer: A

NEW QUESTION # 23
Given the code fragment:

Which code fragment, when inserted at line n1, ensures falseis printed?

A. boolean b = cs.stream() .allMatch(w -> w.equals(“Java”));
B. boolean b = cs.stream() .anyMatch (w -> w.equals (“Java”));
C. boolean b = cs.stream() .findFirst() .get() .equals(“Java”);
D. boolean b = cs.stream() .findAny() .get() .equals(“Java”);

Answer: C

NEW QUESTION # 24
......

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