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[General] Free 1z0-809 Vce Dumps & Valid Study 1z0-809 Questions

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【General】 Free 1z0-809 Vce Dumps & Valid Study 1z0-809 Questions

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Oracle 1z0-809 certification exam covers a wide range of topics related to Java SE 8 programming, including Lambda expressions, functional interfaces, streams, exceptions, and concurrency. 1z0-809 exam format consists of 90 multiple-choice questions that need to be completed in 150 minutes. The passing score for 1z0-809 exam is 65%, and the exam fee is $245.
The 1z0-809 exam covers a wide range of topics, including Java Class Design, Advanced Inheritance, Generics and Collections, Lambda Expressions, Java File I/O (NIO.2), Concurrency, JDBC, Localization, and Annotations. Candidates are also expected to have experience with Java tools and technologies, including the Java Development Kit (JDK), the Java SE 8 API documentation, and the Java Platform, Enterprise Edition (Java EE). 1z0-809 Exam consists of 85 multiple-choice and multiple-select questions and has a duration of 180 minutes. A passing score of 65% or higher is required to obtain certification.
Oracle 1z1-809 exam covers a wide range of topics related to Java programming, including Java Class Design, Advanced Java Class Design, Generics and Collections, Lambda Built-in Functional Interfaces, Java Stream API, Exceptions and Assertions, Java I/O Fundamentals, Java Concurrency, Building Database Applications with JDBC, and Localization.
Valid Study 1z0-809 Questions - 1z0-809 Latest Test DumpsYou have to change the way your study. Get the best Java SE 8 Programmer II 1z0-809 exam questions for your text, check all the chapters, and carefully take note of the important points. You can even highlight the important ones to get a quick revision whenever you want. Cramming the Java SE 8 Programmer II 1z0-809 books is not a good idea because it will not help you in understanding the concept. You just read the lines, try to remember them, and believe that you can keep those lines in your mind during the Oracle Certification Exams.
Oracle Java SE 8 Programmer II Sample Questions (Q140-Q145):NEW QUESTION # 140
Given:

What is the result?
  • A. false true
  • B. true true
  • C. true false
  • D. false false
  • E. Compilation fails.
Answer: A

NEW QUESTION # 141
Given the code fragment:
public class FileThread implements Runnable {
String fName;
public FileThread(String fName) { this.fName = fName; }
public void run () System.out.println(fName);}
public static void main (String[] args) throws IOException, InterruptedException { ExecutorService executor = Executors.newCachedThreadPool(); Stream<ath> listOfFiles = Files.walk(Paths.get("Java Projects")); listOfFiles.forEach(line -> { executor.execute(new FileThread(line.getFileName().toString())); // line n1
});
executor.shutdown();
executor.awaitTermination(5, TimeUnit.DAYS);//
line n2
}
}
The Java Projects directory exists and contains a list of files.
What is the result?
  • A. A compilation error occurs at line n1.
  • B. The program throws a runtime exception at line n2.
  • C. The program prints files names concurrently.
  • D. The program prints files names sequentially.
Answer: C

NEW QUESTION # 142
Given the code fragments:
class Caller implements Callable<String> {
String str;
public Caller (String s) {this.str=s;}
public String call()throws Exception { return str.concat ("Caller");}
}
class Runner implements Runnable {
String str;
public Runner (String s) {this.str=s;}
public void run () { System.out.println (str.concat ("Runner"));}
}
and
public static void main (String[] args) InterruptedException, ExecutionException {
ExecutorService es = Executors.newFixedThreadPool(2);
Future f1 = es.submit (new Caller ("Call"));
Future f2 = es.submit (new Runner ("Run"));
String str1 = (String) f1.get();
String str2 = (String) f2.get();//line n1
System.out.println(str1+ ":" + str2);
}
What is the result?
  • A. A compilation error occurs at line n1.
  • B. An Execution is thrown at run time.
  • C. The program terminates after printing:Run RunnerCall Caller : Run
  • D. The program prints:Run RunnerCall Caller : nullAnd the program does not terminate.
Answer: D

NEW QUESTION # 143
Given the code fragment:
public static void main (String[] args) throws IOException {
BufferedReader brCopy = null;
try (BufferedReader br = new BufferedReader (new FileReader
("employee.txt"))) { //
line n1
br.lines().forEach(c -> System.out.println(c));
brCopy = br; //line n2
}
brCopy.ready(); //line n3;
}
Assume that the ready method of the BufferedReader, when called on a closed BufferedReader, throws an exception, and employee.txt is accessible and contains valid text.
What is the result?
  • A. A compilation error occurs at line n1.
  • B. A compilation error occurs at line n2.
  • C. A compilation error occurs at line n3.
  • D. The code prints the content of the employee.txtfile and throws an exception at line n3.
Answer: D

NEW QUESTION # 144
Given the code fragment:

What is the result?
  • A. David
    David
    [Susan, Allen]
  • B. David
    Allen
    [Susan]
  • C. Susan
    Susan
    [Susan, Allen]
  • D. Susan
    Allen
    [David]
  • E. Susan
    Allen
    [Susan, David]
Answer: D

NEW QUESTION # 145
......
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