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Free Oracle 1Z0-819 Exam Actual Questions

Question No. 1

Given:

What is known about the Sportscar class?

AThe Sportscar class is a subclass of Automobile and inherits its methods.

BThe Sportscar subclass cannot override setTurbo method from the superclass Automobile.

CThe Sportscar class is a superclass that has more functionality than the Automobile class.

DThe Sportscar class inherits the setTurbo method from the superclass Automobile.

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Correct Answer: A

Question No. 2

Given:

What is the result?

A2,34,34,5

B2,34,54,5

C2,54,54,5

D2,34,54,3

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Correct Answer: C

Question No. 3

Given:

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

AConfiguration is OK

BThe compilation fails.

CException in thread 'main' java.lang.Error:Fatal Error: Configuration File, App.config, is missing.

Dnothing

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Correct Answer: B

Question No. 4

Assume ds is a DataSource and the EMP table is defined appropriately.

What does executing this code fragment do?

Ainserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', NULL)

Binserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', 'HR')

Cinserts one row (101, 'SMITH', 'HR')

Dthrows a SQLException

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Correct Answer: C

Question No. 5

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?

AString result = fruits.stream().filter(f > f.contains(''n'')).findAny();

Bfruits.stream().filter(f > f.contains(''n'')).forEachOrdered(System.out::print);

COptional<String> result = fruits.stream().filter(f > f.contains (''n'')).findFirst ();

DOptional<String> result = fruits.stream().anyMatch(f > f.contains(''n''));

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Correct Answer: B