1Z0-819 Dumps To Pass Oracle Java SE Exam in One Day (Updated 215 Questions) [Q127-Q145]

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1Z0-819 Dumps To Pass Oracle Java SE Exam in One Day (Updated 215 Questions)

1Z0-819 Exam Brain Dumps – Study Notes and Theory

NO.127 Given:

What is the result?

NullPointerException is thrown at line 4.

NullPointerException is thrown at line 10.

A compilation error occurs.

Hello

NO.128 Which method throws an exception for not-a-number and infinite input values?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

NO.129 There is a copyServiceAPI that has the org.copyservice. spi. Copy interface To use this service in a module, which module- info.java would be correct?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

NO.130 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.131 Given:

Which two lines cause compilation errors? (Choose two.)

line 12

line 6

line 9

line 8

line 7

NO.132 Given the code fragment:

What is the output?

The compilation fails.

[-1, -2, -3]

[-3, -2, -1]

A runtime exception is thrown.

NO.133 Given:

What is the result?

It throws a runtime exception.

Value of Euler = 2.71828

The code does not compile.

Value of Euler = “2.71828”

NO.134 Assume ds is a DataSource and the EMP table is defined appropriately.

What does executing this code fragment do?

inserts two rows (101, ‘SMITH’, ‘HR’) and (102, ‘JONES’, NULL)

inserts two rows (101, ‘SMITH’, ‘HR’) and (102, ‘JONES’, ‘HR’)

inserts one row (101, ‘SMITH’, ‘HR’)

throws a SQLException

NO.135 Given:

What is the type of x?

char

List<Character>

String

List<String>

NO.136 Given:

When run and all three files exist, what is the state of each reader on Line 1?

All three readers are still open.

All three readers have been closed.

The compilation fails.

Only reader1 has been closed.

NO.137 Given:

What is the output?

A compilation error is thrown.

Message from Copier: Attempt00

Message from Abstract Copier: Attempt00

A runtime error is thrown.

NO.138 Given:

Which two statements are valid to be written in this interface? (Choose two.)

public abstract void methodB();

final void methodG(){System.out.println(“G”);}

private abstract void methodC();

public String methodD();

public int x;

final void methodE();

public void methodF(){System.out.println(“F”);}

NO.139 Which set of commands is necessary to create and run a custom runtime image from Java source files?

java, jdeps

javac, jlink

jar, jlink

javac, jar

NO.140 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.141 You are working on a functional bug in a tool used by your development organization. In your investigation, you find that the tool is executed with a security policy file containing this grant.

What action should you take?