Free 2025 1Z0-819 Dumps 100 Pass Guarantee With Latest Demo [Q138-Q159] : Exam for engine : http://blog.test4engine.com

Q138. Given:

What is the result?

The compilation fails at line 9.

The compilation fails at line 2.

Hello World

The compilation fails at line 8.

Q139. Given:

What is the result?

A ClassCastException is thrown at runtime.

AnotherClass#methodA()AnotherClass#methodA()

The compilation fails.

SomeClass#methodA()AnotherClass#methodA()

AnotherClass#methodA()SomeClass#methodA()

SomeClass#methodA()SomeClass#methodA()

Q140. Which two are successful examples of autoboxing? (Choose two.)

String a = “A”;

Integer e = 5;

Float g = Float.valueOf(null);

Double d = 4;

Long c = 23L;

Float f = 6.0;

Q141. Given the code fragment:

What is the result?

0 8 10

The code prints nothing.

0 4 9

0 8

Q142. 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;

Q143. 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”);}

Q144. 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

—–
—–

Q145. Which code fragment added to line 1 enables the code to compile and print Hello Joe?

Q146. Given:

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

line 12

line 6

line 9

line 8

line 7

Q147. Which two are functional interfaces? (Choose two.)

Option A

Option B

Option C

Option D

Option E

Q148. Given:

What is the result?

Good Morning, Potter

Good Night, Potter

Good Morning, Harry

Good Night, Harry

Q149. Which two interfaces are considered to be functional interfaces? (Choose two.)

@FunctionalInterface
interface InterfaceC {
public boolean equals(Object o);
int breed(int x);
int calculate(int x, int y);
}

@FunctionalInterface
interface InterfaceD {
int breed(int x);
}

@FunctionalInterface
interface InterfaceE {
public boolean equals(int i);
int breed(int x);
}

interface InterfaceA {
int GERM = 13;
public default int getGERM() { return GERM; }
}

interface InterfaceB {
int GERM = 13;
public default int getGERM() { return get(); }
private int get() { return GERM; }
public boolean equals(Object o);
int breed(int x);

Q150. Given:

What is the result?

Keys: 4 Values: 4 Map: 0

Keys: 4 Values: 4 Map: 4

The compilation fails.

Keys: 0 Values: 0 Map:

Keys: 0 Values: 0 Map: 0

Q151. Given:

What is the result?

null

Joe Bloggs

The compilation fails due to an error in line 1.

Q152. Given:

What is the result?

The compilation fails due to an error in line 1.

Q153. A)

B)

C)

D)

Option A

Option B

Option C

Option D

Q154. Given:

Which three actions implement Java SE security guidelines? (Choose three.)

Change line 7 to return names.clone();.

Change line 4 to this.names = names.clone();.

Change the getNames() method name to get$Names().

Change line 6 to public synchronized String[] getNames() {.

Change line 2 to private final String[] names;.

Change line 3 to private Secret(String[] names) {.

Change line 2 to protected volatile String[] names;.

Q155. 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

Q156. Given:

Which two method implementations are correct, when inserted independently in line 1? (Choose two.)

Option A

Option B

Option C

Option D

Option E

Q157. Given:

and

Which code fragment on line 1 makes the s1 set contain the names of all employees born before January 1,
1989?

Option A

Option B

Option C

Option D

Q158. Given:

What is the output?

A compilation error is thrown.

Message from Copier: Attempt00

Message from Abstract Copier: Attempt00

A runtime error is thrown.

Q159. Given:

What is the result?

Ans: a

The compilation fails

Ans:

A java:util. NsuchElementException is thrown at runtime