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Java SE 11 Developer

Last Update 19 hours ago Total Questions : 296

The Java SE 11 Developer content is now fully updated, with all current exam questions added 19 hours ago. Deciding to include 1z0-819 practice exam questions in your study plan goes far beyond basic test preparation.

You'll find that our 1z0-819 exam questions frequently feature detailed scenarios and practical problem-solving exercises that directly mirror industry challenges. Engaging with these 1z0-819 sample sets allows you to effectively manage your time and pace yourself, giving you the ability to finish any Java SE 11 Developer practice test comfortably within the allotted time.

Question # 4

Given:

Which annotation should be used to remove warnings from compilation?

A.

@SuppressWarnings on the main and print methods

B.

@SuppressWarnings(“unchecked”) on main and @SafeVarargs on the print method

C.

@SuppressWarnings(“rawtypes”) on main and @SafeVarargs on the print method

D.

@SuppressWarnings(“all”) on the main and print methods

Question # 5

Given:

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

A.

public Collection foo(Collection arg) { ... } overrides Foo.foo.

B.

public Collection foo(Stream arg) { ... } overloads Foo.foo.

C.

public List foo(Collection arg) { ... } overrides Foo.foo.

D.

public Collection foo(Collection arg) { ... } overloads Foo.foo.

E.

public Collection bar(Collection arg) { ... } overloads Foo.foo.

F.

public Iterable foo(Collection arg) { ... } overrides Foo.foo.

Question # 6

Which module-info.java is correct for a service provider for a print service defined in the PrintServiceAPI

module?

A.

module PrintServiceProvider {

requires PrintServiceAPI;

exports org.printservice.spi;

}

B.

module PrintServiceProvider {

requires PrintServiceAPI;

provides org.printservice.spi.Print with

com.provider.PrintService;

}

C.

module PrintServiceProvider {

requires PrintServiceAPI;

uses com.provider.PrintService;

}

D.

module PrintServiceProvider {

requires PrintServiceAPI;

exports org.printservice.spi.Print with

D18912E1457D5D1DDCBD40AB3BF70D5D

com.provider.PrintService;

}

Question # 7

Given:

What is the result?

A.

5

B.

3

C.

23

D.

25

E.

11

Question # 8

Given:

What is the result?

A.

Joe

null

B.

null

Mary

C.

Joe

Marry

D.

null

null

Question # 9

Given:

It is required that if p instanceof Pair then p.isValid() returns true.

Which is the smallest set of visibility changes to insure this requirement is met?

A.

setLeft and setRight must be protected.

B.

left and right must be private.

C.

isValid must be public.

D.

left, right, setLeft, and setRight must be private.

Question # 10

What is the result?

A.

357

B.

35

C.

235

D.

2357

E.

An ArrayIndexOutOfBoundsException is thrown at runtime.

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