1Z0-819 Braindumps PDF, Oracle 1Z0-819 Exam Cram [Q120-Q136]

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1Z0-819 Braindumps PDF, Oracle 1Z0-819 Exam Cram

New 2022 1Z0-819 Sample Questions Reliable 1Z0-819 Test Engine

For more info read reference:

1Z0-006 Official Certification Site
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NEW QUESTION 120
Given:

What is the result?

Dr. Who

Dr. Null

An exception is thrown at runtime.

null

NEW QUESTION 121
Given:

What is the result?

watermelonorangelemongrapeapricotapple

nothing

appleapricotgrapelemonorangewatermelon

appleorangegrapelemonapricotwatermelon

NEW QUESTION 122
Given:

Which two codes, independently, can be inserted in line to 1 compile?

Abacus aba = (int m, int n) -> { m * n };

Abacus aba = (int e, int f) -> { return e * f; };

Abacus aba = (a, b) -> a * b;

Abacus aba = v, w -> x * y;

Abacus aba = (int i, j) -> ( return i * j; };

NEW QUESTION 123
Which code fragment prints 100 random numbers?

Option A

Option B

Option C

Option D

NEW QUESTION 124
Given the Customer table structure:
* ID Number Primary Key
* NAME Text Nullable
Given code fragment:

Which statement inserted on line 14 sets NAME column to a NULL value?

Stmt.setNull(2, java,sql. Types, VARCHAR);

Stmt.setNull(2 string, class);

Stmt.setNull(2, null);

Stmt.setNull(2, java.lang, string);

NEW QUESTION 125
Given:

This code results in a compilation error.
Which code should be inserted on line 1 for a successful compilation?

Consumer consumer = msg -> { return System.out.print(msg); };

Consumer consumer = var arg > {System.out.print(arg);};

Consumer consumer = (String args) > System.out.print(args);

Consumer consumer = System.out::print;

NEW QUESTION 126
Given the code fragment:

What is the result?

123

NEW QUESTION 127
Given:

What is the type of the local variable x?

Character

char

String[ ]

String

NEW QUESTION 128
Which two are functional interfaces? (Choose two.)

Option A

Option B

Option C

Option D

Option E

NEW QUESTION 129
Given:

What is the output?

null

A NoSuchElementException is thrown at run time.

Duke

A NullPointerException is thrown at run time.

NEW QUESTION 130
Given:

What is the result?

2134

2143

214

234

NEW QUESTION 131
Given:

What is the result?

An indexOutofBoundsException is thrown at runtime.

At once 0

Hat at store 4

At once 1

Hat at store 1

NEW QUESTION 132
Which two safely validate inputs? (Choose two.)

Delegate numeric range checking of values to the database.

Accept only valid characters and input values.

Use trusted domain-specific libraries to validate inputs.

Assume inputs have already been validated.

Modify the input values, as needed, to pass validation.

Reference:
/validating-input-using-java-util-scanner

NEW QUESTION 133
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

NEW QUESTION 134
Given:

What prevents this code from compiling?

The calculateSurfaceAreamethod within Cylinder must be declared default.

Cylinderis not properly calling the Rectangle and Ellipseinterfaces’ calculateSurfaceArea methods.

Cylinderrequires an implementation of calculateSurfaceAreawith two parameters.

The calculateSurfaceAreamethod within Rectangle and Ellipserequires a publicaccess modifier.

NEW QUESTION 135
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?

Nothing, because it is an internal tool and not exposed to the public.

Remove the grant because it is excessive.

Nothing, because it is not related to the bug you are investigating.

File a security bug against the tool referencing the excessive permission granted.

Nothing, because listing just the required permissions would be an ongoing maintenance challenge.

NEW QUESTION 136
Given:

What is the output?

300

Exception

200

100

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