This page was exported from IT Certification Exam Braindumps [ http://blog.braindumpsit.com ] Export date:Thu Apr 10 4:57:59 2025 / +0000 GMT ___________________________________________________ Title: [Aug-2023] Practice Oracle 1z1-819 exam. Online Exam Practice Tests with detailed explanations! Pass 1z1-819 with confidence! [Q79-Q103] --------------------------------------------------- Practice Oracle Java SE 1z1-819 exam. Online Exam Practice Tests with detailed explanations! Pass 1z1-819 with confidence! 1z1-819 - Java SE 11 Developer Practice Tests 2023 | BraindumpsIT NEW QUESTION 79Given:What is the result?  nothing  It fails to compile.  0  A java.lang.IllegalArgumentException is thrown.  10 NEW QUESTION 80Given:Which two are secure serialization of these objects? (Choose two.)  Define the serialPersistentFields array field.  Declare fields transient.  Implement only readResolve to replace the instance with a serial proxy and not writeReplace.  Make the class abstract.  Implement only writeReplace to replace the instance with a serial proxy and not readResolve. NEW QUESTION 81Given:Which three classes successfully override printOne()? (Choose three.)  Option A  Option B  Option C  Option D  Option E  Option F NEW QUESTION 82Given:What is the result?  5 4 3 2 1  5  nothing  5 4 3 2 1 4 3 2 1 3 2 1 2 1 1 ExplanationGraphical user interface, application Description automatically generatedNEW QUESTION 83Given an application with a main module that has this module-info.java file:Which two are true? (Choose two.)  A module providing an implementation of country.CountryDetails can be compiled and added without recompiling the main module.  A module providing an implementation of country.CountryDetails must have a requires main; directive in its module-info.java file.  An implementation of country.countryDetails can be added to the main module.  To compile without an error, the application must have at least one module in the module source path that provides an implementation of country.CountryDetails.  To run without an error, the application must have at least one module in the module path that provides an implementation of country.CountryDetails. NEW QUESTION 84Given the code fragment:What is the result?  -1 : 2  2 : -1  2 : 3  3 : 0 NEW QUESTION 85Given:Which three are true? (Choose three.)  b1.foo(c) prints Bonjour le monde!  f1.foo(c) prints Hello world!  f1.foo(c) prints Ola Mundo!  b1.foo(c) prints Hello world!  f2.foo(c) prints Ola Mundo!  b1.foo(c) prints Ola Mundo!  f2.foo(c) prints Bonjour le monde!  f2.foo(c) prints Hello world!  f1.foo(c) prints Bonjour le monde! NEW QUESTION 86You are working on a functional bug in a tool used by your development organization. In your investigation, you find that the tool is executed with a security policy file containing this grant.What action should you take?  Nothing, because it is an internal tool and not exposed to the public.  Remove the grant because it is excessive.  Nothing, because it is not related to the bug you are investigating.  File a security bug against the tool referencing the excessive permission granted.  Nothing, because listing just the required permissions would be an ongoing maintenance challenge. NEW QUESTION 87Given:Which two interfaces can be used in lambda expressions? (Choose two.)  MyInterface4  MyInterface5  MyInterface1  MyInterface3  MyInterface2 NEW QUESTION 88Given:What is the result?  5  3  23  25  11 NEW QUESTION 89Given:Which two methods modify field values? (Choose two.)  setAllCounts  setACount  setGCount  setCCount  setTCount NEW QUESTION 90var numbers = List.of(0,1,2,3,4,5,6,7,8,9);You want to calculate the average of numbers. Which two codes will accomplish this? (Choose two.)  double avg = numbers.stream().parallel().averagingDouble(a -> a);  double avg = numbers.parallelStream().mapToInt (m -> m).average().getAsDouble ();  double avg = numbers.stream().mapToInt (i -> i).average().parallel();  double avg = numbers.stream().average().getAsDouble();  double avg = numbers.stream().collect(Collectors.averagingDouble(n -> n)); NEW QUESTION 91Given:Assume the file on path does not exist. What is the result?  The compilation fails.  /u01/work/filestore.txt is not deleted.  Exception  /u01/work/filestore.txt is deleted. NEW QUESTION 92Given TripleThis.java:Compiling TripleThis.java gives this compiler warning:Note: TripleThis.java uses unchecked or unsafe operations.Which two replacements done together remove this compiler warning?  Replace line 9 with function<Integer> tripler = x-> – { return (Integer) X * 3 ; }.  Replace line 12 with public static void printValue function<Integer> f, int num) {.  Replace line 12 with public static int printValue function<Integer, Integer>, f, T num {.  Replace line 12 with public static <T> void printValue (Function<T, T> f, T num ) {,  Replace line 9 with function<Integer>, Integer> = X -> { return (integer) x * 3; }. NEW QUESTION 93Given:executed with this command:java Main one two threeWhat is the output of this class?  The compilation fails.  1) one2) two3) three  A java.lang.ArrayIndexOutOfBoundsException is thrown.  1) one  nothing NEW QUESTION 94Given the code fragment:What is the result?         NEW QUESTION 95Given:Assuming that this code compiles correctly, which three statements are true? (Choose three.)  B cannot be abstract.  B is a subtype of A.  A cannot be abstract.  A cannot be final.  B cannot be final.  A is a subtype of B. NEW QUESTION 96Given:What is the result?  The compilation fails.  1.99,2.99,0  1.99,2.99,0.0  1.99,2.99 NEW QUESTION 97Given:What is the result?  385  3  The compilation fails.  80  25 NEW QUESTION 98Given:What is the output?  A compilation error is thrown.  Message from Copier: Attempt00  Message from Abstract Copier: Attempt00  A runtime error is thrown. NEW QUESTION 99Given:What is the result?  42  The compilation fails due to an error in line 4.  17  The compilation fails due to an error in line 3.  The compilation fails due to an error in line 2.  The compilation fails due to an error in line 1.  The compilation fails due to an error in line 5. NEW QUESTION 100A 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 NEW QUESTION 101Given the code fragment:What change on line 1 will make this code compile?  Add catch (L |N e).  Add catch (L |M N e).  Add catch (L e).  Add catch (N | L | M e).  Add catch (M |L e). NEW QUESTION 102Assuming the Widget class has a getPrice method, this code does not compile:Which two statements, independently, would allow this code to compile? (Choose two.)  Replace line 5 with widgetStream.filter(a > ((Widget)a).getPrice() > 20.00).  Replace line 1 with List<Widget> widgetStream = widgets.stream();.  Replace line 5 with widgetStream.filter((Widget a) > a.getPrice() > 20.00).  Replace line 4 with Stream<Widget> widgetStream = widgets.stream();. NEW QUESTION 103Given:Which three classes successfully override showFirst ()?A)B)C)D)E)F)  Option A  Option B  Option C  Option D  Option E  Option F  Loading … The best 1z1-819 exam study material and preparation tool is here: https://www.braindumpsit.com/1z1-819_real-exam.html --------------------------------------------------- Images: https://blog.braindumpsit.com/wp-content/plugins/watu/loading.gif https://blog.braindumpsit.com/wp-content/plugins/watu/loading.gif --------------------------------------------------- --------------------------------------------------- Post date: 2023-08-22 10:09:25 Post date GMT: 2023-08-22 10:09:25 Post modified date: 2023-08-22 10:09:25 Post modified date GMT: 2023-08-22 10:09:25