1z1-819 Updated Exam Dumps [2022] Practice Valid Exam Dumps Question [Q48-Q64]

1z1-819 Updated Exam Dumps [2022] Practice Valid Exam Dumps Question

1z1-819 Sample with Accurate & Updated Questions

Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819

The following will be discussed in the ORACLE 1Z0-006 exam dumps:

• Deploy and execute modular applications, including automatic modules
• Initialize objects and their members using instance and static initialiser statements and constructors
• Understand variable scopes, apply encapsulation and make objects immutable
• Create and use subclasses and superclasses, including abstract classes
• Utilize polymorphism and casting to call methods, differentiate object type versus reference type
• Declare, use, and expose modules, including the use of services
• Read and write console and file data using I/O Streams
• Declare and instantiate Java objects including nested class objects, and explain objects’ lifecycles (including creation, dereferencing by reassignment, and garbage collection)
• Implement serialization and deserialization techniques on Java objects
• Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
• Handle file system objects using java.nio.file API
• Define and use fields and methods, including instance, static and overloaded methods
• Create and use enumerations

QUESTION 48
Given the code fragment:

Which two statement inserted independently at line 1 enable this code to print PRRT?

 i-;

 continue b;

 break b;

 j–;

 continue a;

 break a ;

QUESTION 49
Given:

and

Which two method definitions at line n1 in the Bar class compile? (Choose two.)

 public List<Number> foo(Set<String> m) {…}

 public List<Integer> foo(Set<CharSequence> m) {…}

 public List<Integer> foo(TreeSet<String> m) {…}

 public List<Object> foo(Set<CharSequence> m) {…}

 public ArrayList<Integer> foo(Set<String> m) {…}

 public ArrayList<Number> foo(Set<CharSequence> m) {…}

QUESTION 50
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.

QUESTION 51
Given:

After which line can we insert assert i < 0 || values[i] <= values[i + 1]; to verify that the values array is partially sorted?

 after line 8

 after line 6

 after line 5

 after line 10

QUESTION 52
Given:

What is the type of x?

 char

 List<Character>

 String

 List<String>

QUESTION 53
Given:

What is the result?

 [0,0] = Red[0,1] = White[1,0] = Black[1,1] = Blue[2,0] = Yellow[2,1] = Green[3,0] = Violet

 [0,0] = Red[1,0] = Black[2,0] = Blue

 java.lang.ArrayIndexOutOfBoundsException thrown

 [0,0] = Red[0,1] = White[1,0] = Black[2,0] = Blue[2,1] = Yellow[2,2] = Green[2,3] = Violet

QUESTION 54
Given:

Which statement on line 1 enables this code to compile?

 Function<Integer, Integer> f = n > n * 2;

 Function<Integer> f = n > n * 2;

 Function<int> f = n > n * 2;

 Function<int, int> f = n > n * 2;

 Function f = n > n * 2;

QUESTION 55
Given:

Examine these requirements:
* Eliminate code duplication.
* Keep constant the number of methods other classes may implement from this interface.
Which method can be added to meet these requirements?

 Option A

 Option B

 Option C

 Option D

QUESTION 56
Given:

If file “App.config” is not found, what is the result?

 Configuration is OK

 The compilation fails.

 Exception in thread “main” java.lang.Error:Fatal Error: Configuration File, App.config, is missing.

 nothing

QUESTION 57
Which code fragment prints 100 random numbers?

 Option A

 Option B

 Option C

 Option D

QUESTION 58
Given:

What is the result?

 9

 An exception is thrown at runtime.

 3

 6

QUESTION 59
Given:

Which two methods modify field values? (Choose two.)

 setAllCounts

 setACount

 setGCount

 setCCount

 setTCount

QUESTION 60
Given:

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.

QUESTION 61
Given:

Which code fragment on line 1 makes the m map contain the employee with the highest salary for each neighborhood?
A)

B)

C)

D)

 Option A

 Option B

 Option C

 Option D

QUESTION 62
Given:

Which expression when added at line 1 will produce the output of 1.17?

 float z = (float)(Math.round((float)x/y*100)/100);

 float z = Math.round((int)(x/y),2);

 float z = Math.round((float)x/y,2);

 float z = Math.round((float)x/y*100)/(float)100;

QUESTION 63
Examine these module declarations:

Which two statements are correct? (Choose two.)

 The ServiceProvider module is the only module that, at run time, can provide the com.example.api API.

 The placement of the com.example.api API in a separate module, ServiceAPI, makes it easy to install multiple provider modules.

 The Consumer module should require the ServiceProvider module.

 The ServiceProvider module should export the com.myimpl package.

 The ServiceProvider module does not know the identity of a module (such as Consumer) that uses the com.example.api API.

QUESTION 64
Given this enum declaration:

Examine this code:
System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?

 final String getFirstLetter() { return A.toString(); }

 static String getFirstLetter() { return Alphabet.values()[1].toString(); }

 static String getFirstLetter() { return A.toString(); }

 String getFirstLetter() { return A.toString(); }

 Loading …

For more info read reference:

1Z0-006 Official Certification Site
Oracle Cloud Learning Resources

Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819

The following will be discussed in ORACLE 1Z0-006 exam dumps:

• Java I/O API
• Annotations
• Working with Arrays and Collections
• Java Object-Oriented Approach

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