This page was exported from Exams Labs Braindumps [ http://blog.examslabs.com ] Export date:Sat Nov 23 14:33:28 2024 / +0000 GMT ___________________________________________________ Title: Based on Official Syllabus Topics of Actual Oracle 1z1-819 Exam [Q91-Q112] --------------------------------------------------- Based on Official Syllabus Topics of Actual Oracle 1z1-819 Exam Free 1z1-819 Dumps are Available for Instant Access The Oracle 1Z0-819 certification exam is a valuable credential that confirms the candidate's proficiency in Java SE 11 programming and demonstrates their commitment to professional development. By passing the exam, candidates can prove their skills to potential employers, increase their earning potential, and take their Java programming career to new heights.   Q91. Given:What is the result?  [A, B, C]followed by an exception thrown on line 11.  [A, B, C][A, B]  [A, B, C][A, B, C]  On line 9, an exception is thrown at run time. ExplanationGraphical user interface, text, application Description automatically generatedQ92. Given the code fragment:var pool = Executors.newFixedThreadPool(5);Future outcome = pool.submit(() > 1);Which type of lambda expression is passed into submit()?  java.lang.Runnable  java.util.function.Predicate  java.util.function.Function  java.util.concurrent.Callable Q93. Given:Which three are correct? (Choose three.)  b1.foo(li) prints Hello world!  f1.foo(li) prints Bonjour le monde!  f1.foo(li) prints Hello world!  f1.foo(li) prints Hola Mundo!  b1.foo(li) prints Bonjour le monde!  f2.foo(li) prints Hola Mundo!  f2.foo(li) prints Bonjour le monde!  b1.foo(li) prints Hola Mundo!  f2.foo(li) prints Hello world! Q94. Given:Which two lines inserted in line 1 will allow this code to compile? (Choose two.)  protected void walk(){}  void walk(){}  abstract void walk();  private void walk(){}  public abstract void walk(); Q95. Which two interfaces are considered to be functional interfaces? (Choose two.)@FunctionalInterface  interface InterfaceC {public boolean equals(Object o);int breed(int x);int calculate(int x, int y);}@FunctionalInterface  interface InterfaceD {int breed(int x);}@FunctionalInterface  interface InterfaceE {public boolean equals(int i);int breed(int x);}interface InterfaceA {  int GERM = 13;public default int getGERM() { return GERM; }}interface InterfaceB {  int GERM = 13;public default int getGERM() { return get(); }private int get() { return GERM; }public boolean equals(Object o);int breed(int x);} Explanation/Reference:Q96. Given:Why does D cause a compilation error?  D inherits a() only from C.  D inherits a() from B and C but the return types are incompatible.  D extends more than one interface.  D does not define any method. Q97. Given the code fragment:What is the result?  A java.lang, UnsupportedOperationException is thrown.  True  False  A java.lang.NullPointerException is thrown. Q98. Given:executed with this command:java Main one two threeWhat is the result?  0). one  0). one1). two2). three  The compilation fails.  It creates an infinite loop printing:0). one1). two1). two…  A java.lang.NullPointerException is thrown. Q99. A company has an existing sales application using a Java 8 jar file containing packages:com.company.customer;com.company.customer.orders;com.company.customer.info;com.company.sales;com.company.sales.leads;com.company.sales.closed;com.company.orders;com.company.orders.pending;com.company.orders.shipped.To modularize this jar file into three modules, customer, sales, and orders, which module-info.java would be correct?A)B)C)D)  Option A  Option B  Option C  Option D Q100. Assume ds is a DataSource and the EMP table is defined appropriately.What does executing this code fragment do?  inserts two rows (101, ‘SMITH’, ‘HR’) and (102, ‘JONES’, NULL)  inserts two rows (101, ‘SMITH’, ‘HR’) and (102, ‘JONES’, ‘HR’)  inserts one row (101, ‘SMITH’, ‘HR’)  throws a SQLException Q101. Given:What is the result?  JoeMarry  Joenull  nullnull  nullMary Q102. Given the content:What Is the result?A)B)C)D)E)User Username  Option A  Option B  Option C  Option D  Option Q103. Given:Which two are correct? (Choose two.)  Option A  Option B  Option C  Option D Q104. Given:What is the output?  :APPLE:ORANGE:BANANAappleorangebanana  :APPLE:ORANGE:BANANA  APPLE:apple ORANGE:orange BANANA:banana  appleorangebanana:APPLE:ORANGE:BANANA  apple:APPLE orange:ORANGE banana:BANANA Q105. Given the code fragment:What is the result?  ab cd ef  An ArrayIndexOutOfBoundsException is thrown at runtime.  The compilation fails.  abc def  ad be cf Q106. Given:Automobile.javaCar.javaWhat must you do so that the code prints 4?  Remove the parameter from wheels method in line 3.  Add @Override annotation in line 2.  Replace the code in line 2 with Car ob = new Car();  Remove abstract keyword in line 1. Q107. Given the code fragment:Path currentFile = Paths.get(“/scratch/exam/temp.txt”);Path outputFile = Paths get(“/scratch/exam/new.txt”);Path directory = Paths.get(“/scratch/”);Files.copy(currentFile, outputFile);Files.copy(outputFile, directory);Files.delete (outputFile);The /scratch/exam/temp.txt file exists. The /scratch/exam/new.txt and /scratch/new.txt files do not exist.What is the result?  /scratch/exam/new.txt and /scratch/new.txt are deleted.  The program throws a FileaAlreadyExistsException.  The program throws a NoSuchFileException.  A copy of /scratch/exam/new.txt exists in the /scratch directory and /scratch/exam/new.txt is deleted. Q108. Given:You want to use the myResource class in a try-with-resources statement. Which change will accomplish this?  Extend AutoCloseable and override the close method.  Implement AutoCloseable and override the autoClose method.  Extend AutoCloseable and override the autoClose method.  Implement AutoCloseable and override the close method. Q109. Given:public class X {}andpublic final class Y extends X {}What is the result of compiling these two classes?  The compilation fails because there is no zero args constructor defined in class X.  The compilation fails because either class X or class Y needs to implement the toString() method.  The compilation fails because a final class cannot extend another class.  The compilation succeeds. Q110. Which two are successful examples of autoboxing? (Choose two.)  String a = “A”;  Integer e = 5;  Float g = Float.valueOf(null);  Double d = 4;  Long c = 23L;  Float f = 6.0; Q111. Given:List<String> longlist = List.of(“Hello”,”World”,”Beat”);List<String> shortlist = new ArrayList<>();Which code fragment correctly forms a short list of words containing the letter “e”?  Option A  Option B  Option C  Option D Q112. Given:Automobile.javaCar.javaWhat must you do so that the code prints 4?  Remove the parameter from wheels method in line 3.  Add @Override annotation in line 2.  Replace the code in line 2 with Car ob = new Car();  Remove abstract keyword in line 1.  Loading … The Oracle 1z1-819 exam is a certification exam for Java developers who want to demonstrate their proficiency in Java SE 11 development. This exam is designed to test the knowledge and skills of developers in various areas, including Java syntax and constructs, object-oriented programming, concurrency, I/O and NIO API, JDBC API, and more. Candidates who pass this exam will earn the Oracle Certified Professional: Java SE 11 Developer certification.   The Most In-Demand 1z1-819 Pass Guaranteed Quiz : https://www.examslabs.com/Oracle/Oracle-Java-SE/best-1z1-819-exam-dumps.html --------------------------------------------------- Images: https://blog.examslabs.com/wp-content/plugins/watu/loading.gif https://blog.examslabs.com/wp-content/plugins/watu/loading.gif --------------------------------------------------- --------------------------------------------------- Post date: 2023-04-05 11:27:47 Post date GMT: 2023-04-05 11:27:47 Post modified date: 2023-04-05 11:27:47 Post modified date GMT: 2023-04-05 11:27:47