1z1-819 Study Guide Brilliant 1z1-819 Exam Dumps PDF [Q92-Q107]

1z1-819 Study Guide Brilliant 1z1-819 Exam Dumps PDF

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Average Salary of Java SE 11 Developer Exam Number: 1Z0-819 Certified Professionals

The average salary is between $71k and $103k.

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:

• Declare and instantiate Java objects including nested class objects, and explain objects’ – lifecycles (including creation, dereferencing by reassignment, and garbage collection)
• Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
• Create and use subclasses and superclasses, including abstract classes
• Define and use fields and methods, including instance, static and overloaded methods
• Secure resource access including filesystems, manage policies and execute privileged code
• Utilize polymorphism and casting to call methods, differentiate object type versus reference type
• Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity

NO.92 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);

NO.93 Given:

and omitting the throws FooException clause results in a compilation error.
Which statement is true about FooException?

 FooException is a subclass of RuntimeError.

 FooException is unchecked.

 The body of foo can only throw FooException.

 The body of foo can throw FooException or one of its subclasses.

NO.94 Given:

What is the result?

 6910 3

 10126 3

 3

 6104 3

NO.95 Given:

and
checkQuality(QUALITY.A);
and

Which code fragment can be inserted into the switch statement to print Best?

 QUALITY.A.ValueOf()

 A

 A.toString()

 QUALITY.A

NO.96 Given:

Which two are correct? (Choose two.)

 Option A

 Option B

 Option C

 Option D

NO.97 Given:
var fruits = List.of(“apple”, “orange”, “banana”, “lemon”);
You want to examine the first element that contains the character n. Which statement will accomplish this?

 String result = fruits.stream().filter(f > f.contains(“n”)).findAny();

 fruits.stream().filter(f > f.contains(“n”)).forEachOrdered(System.out::print);

 Optional<String> result = fruits.stream().filter(f > f.contains (“n”)).findFirst ();

 Optional<String> result = fruits.stream().anyMatch(f > f.contains(“n”));

NO.98 Given:

What is the result?

 nothing

 0

 10

 0 4 9

NO.99 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.

NO.100 Given:

What is the result?

 9

 An exception is thrown at runtime.

 3

 6

NO.101 Which statement about a functional interface is true?

 It must be defined with the public access modifier.

 It must be annotated with @FunctionalInterface.

 It is declared with a single abstract method.

 It is declared with a single default method.

 It cannot have any private methods and static methods.

NO.102 Given:

What is the result?

 Orange Juice

 The compilation fails.

 Orange Juice Apple Pie Lemmon Ice Raspberry Tart

 The program prints nothing.

NO.103 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;

NO.104 Given:

Which statement is true about the Fox class?

 Fox class does not have to override inhabit method, so long as it does not try to call it.

 Fox class does not have to override the inhabit method if Forest and Town provide compatible implementations.

 Fox class must implement either Forest or Town interfaces, but not both.

 The inhabit method implementation from the first interface that Fox implements will take precedence.

 Fox class must provide implementation for the inhabit method.

NO.105 Given:

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.

NO.106 Given the code fragment:

What is the result?

 -1 : 2

 2 : -1

 2 : 3

 3 : 0

NO.107 Given:

What is the output?
banana orange apple lemon

 —–
apple banana lemon orange
—–
—–

 banana orange apple lemon
—–
apple banana lemon orange
—–

 —–
—–

 —–
banana orange apple lemon apple banana lemon orange
banana orange apple lemon apple banana lemon orange

 —–
—–

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

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

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

Free 1z1-819 Test Questions Real Practice Test Questions: https://www.dumpleader.com/1z1-819_exam.html