Obtain the 1z1-819 PDF Dumps Get 100% Outcomes Exam Questions For You To Pass [Q62-Q84] : Top Exam Collection : http://blog.topexamcollection.com

第 62 号 Given:

and:

Which code, when inserted on line 10, prints the number of unique localities from the roster list?

.map(Employee::getLocality)
.distinct()
.count();

map(e -> e.getLocality())
.count();

.map(e -> e.getLocality())
.collect(Collectors.toSet())
.count();

.filter(Employee::getLocality)
.distinct()
.count();

NO.63 Given:

Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)

setCCount(c) = cCount;

tCount = tCount;

setGCount(g);

cCount = setCCount(c);

aCount = a;

NO.64 Given:

Which two statements are true if the method is added to Bar? (Choose two.)

public Collection<String> foo(Collection<String> arg) { … } overrides Foo.foo.

public <T> Collection<T> foo(Stream<T> arg) { … } overloads Foo.foo.

public <T> List<T> foo(Collection<T> arg) { … } overrides Foo.foo.

public <T> Collection<T> foo(Collection<T> arg) { … } overloads Foo.foo.

public <T> Collection<T> bar(Collection<T> arg) { … } overloads Foo.foo.

public <T> Iterable<T> foo(Collection<T> arg) { … } overrides Foo.foo.

第 65 号 Given:

You want to implement the java. Io, serializable interface to the MypersisteneData class.
Which method should be overriden?

The readExternal and writeExternal method

The readExternal method

The writeExternal method

nothing

NO.66 Given:

结果如何？

2134

234

2341

214

NO.67 Given:

What is the expected result of javac?

javac fails to compile the class and prints the error message, C:workspace4Mycar.java:1:error: package java does not exist

javac compiles Mycar.java without errors or warnings.

javac fails to compile the class and prints the error message, C:workspace4Mycar.java:1:error:
expected import java.lang

javac fails to compile the class and prints the error message, Error: Could not find or load main class Mycar.class

NO.68 Given:

What code must you insert on Line 1 to enable the code to print Hello world?

Hello.Greeting myG = new Hello.Greeting() myG.sayHi();

Hello myH = new Hello();
Hello.Greeting myG = myH.new Greeting();
myG.sayHi();

Hello myH = new Hello();
Hello.Greeting myG = myH.new Hello.Greeting();
myG.sayHi();

Hello myH = new Hello(); Greeting myG = new Greeting(); myG.sayHi ();

第 69 号 Given:

结果如何？

3 5 3 3

3 3 3 3

3 5 3 5

5 5 3 3

NO.70 Given:

What is the output?

无效

A NoSuchElementException is thrown at run time.

Duke

A NullPointerException is thrown at run time.

第 71 号 Given:

What is the output?

A compilation error is thrown.

Message from Copier: Attempt00

Message from Abstract Copier: Attempt00

A runtime error is thrown.

第 72 号 Given:

结果如何？

2134

234

2341

214

第 73 号 Given:

You wants to make the reduction operation parallelized.
Which two modifications will accomplish this?

Replace line 1 with int sum = numbers. Stream (). Interate (0, a -> a+1. Reduce (0, (n m) -> n+m);

Replace line 1with int sum = numbers. ParallelStream ( ). Reduce (0, (n, m ) -> n + m);

Replace line 1 with int sum = numbers. Parallel ( ). Stream ( ). Reduce (0, (n, m ) -> n + m);

Replace line 1with int sum = number. Stream ( ) . flatMap (a -> a) .reduce (0, (n, m) -> n +m );

Replace line 1with int sum = number.stream. parallel ( ). Reduce (0, (n, m) -> n + m);

第 74 号 Given:

Which two independent changes will make the Main class compile? (Choose two.)

Move the entire Student class declaration to a separate Java file, Student.java.

Change line 2 to public Student(String classname).

Change line 1 to public class Student {.

Change line 3 to Student student = new Student(“Biology”);.

Change line 1 to static class Student {.

第 75 号 Given:

结果如何？

NullPointerException is thrown at line 4.

NullPointerException is thrown at line 10.

A compilation error occurs.

Hello

NO.76 Given:

What is the output?

无效

A NoSuchElementException is thrown at run time.

Duke

A NullPointerException is thrown at run time.

第 77 号 Given:

结果如何？

nothing

0 4 9

第 78 号 Given the code fragment:

Which code fragment replaces the for statement?

IntStream.rangeClosed(l, 100).map(FizzBuzz::convert).forEach(System.out::println);

IntStream.ranged, 100).map(FizzBuzz::convert).forEach(System.out::println);

intstream.rangeclosed(l, 100).mapToObj{FizzBuzz::convert).forEach(System.out::printIn);

IntStream.range(1, 100).mapToObj(FizzBuzz::convert).forEach(System.out::println);

第 79 号 Given:

结果如何？

The compilation fails.

Y@<< hashcode>>

Null

NO.80 Given the code fragment:

结果如何？
A)

B)

C)

D)

方案 A

方案 B

选项 C

选项 D

NO.81 Given:

executed with this command:
java Main one two three
结果如何？

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.

第 82 号 Given:

Which option should you choose to enable the code to print Something happened?

Add extends GeneralException on line 1.
Add extends Exception on line 2.

Add extends SpecificException on line 1.
Add extends GeneralException on line 2.

Add extends Exception on line 1.
Add extends Exception on line 2.

Add extends Exception on line 1.
Add extends GeneralException on line 2.

第 83 号 Which two commands are used to identify class and module dependencies? (Choose two.)

jmod describe

java Hello.java

jdeps –list-deps

jar –show-module-resolution

java –show-module-resolution

第 84 号 Given:

Which two interfaces can be used in lambda expressions? (Choose two.)

MyInterface4

MyInterface5

MyInterface1

MyInterface3

MyInterface2

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