Free 1Z0-819 Sample Questions and 100% Cover Real Exam Questions (Updated 225 Questions)
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NEW QUESTION 53
Given:
What is the result?
- A. adf
- B. abcd
- C. abdf
- D. The compilation fails.
- E. abd
Answer: B
NEW QUESTION 54
Given:
What is the result?
- A. An exception is thrown at runtime.
- B. 0
- C. 1
- D. 2
Answer: B
Explanation:
NEW QUESTION 55
Given:
What is the output?
- A. A runtime error is thrown.
- B. Message from Copier: Attempt00
- C. Message from Abstract Copier: Attempt00
- D. A compilation error is thrown.
Answer: D
NEW QUESTION 56
Given:
If file "App.config" is not found, what is the result?
- A. Configuration is OK
- B. The compilation fails.
- C. nothing
- D. Exception in thread "main" java.lang.Error:Fatal Error: Configuration File, App.config, is missing.
Answer: B
Explanation:
NEW QUESTION 57
Given the declaration:
Examine this code fragment:
/* Loc1 */ class ProcessOrders { ... }
Which two annotations may be applied at Loc1 in the code fragment? (Choose two.)
- A. @Resource(name="Customer1")
- B. @Resource
- C. @Resource(priority=0)
- D. @Resource(priority=100)
- E. @Resource(name="Customer1", priority=100)
Answer: C,D
NEW QUESTION 58
Given:
What is the output?
- A. I am an object array
- B. I am an array
- C. I am an object
- D. The compilation fails due to an error in line 1.
Answer: C
NEW QUESTION 59
Given:
What is the result?
- A. An exception is thrown at runtime
- B. Take extra care
- C. The program prints nothing.
- D. Take extra care
Take extra care
Answer: A
NEW QUESTION 60
A company has an existing Java app that includes two Java 8 jar files, sales-3.10. jar and clients-10.2.jar.
The jar file ,sales -8, 10, jar reference packages in clients -10.2 jar, but clients-10.2 jar does not reference packages in sales -8.10, jar.
They have decided to modularize clients-10.2.jar.
Which module-info. Java file would work for the new library version clients-10.3 jar?
A)
B)
C)
D)
- A. Option B
- B. Option D
- C. Option A
- D. Option C
Answer: D
NEW QUESTION 61
Given:
Which two changes need to be made to make this class compile? (Choose two.)
- A. Change Line 2 to an abstract method:public abstract void checkValue(Object value)throws IllegalArgumentException;
- B. Change Line 1 to a class:public class API {
- C. Change Line 1 to an abstract class:public abstract class API {
- D. Change Line 2 access modifier to protected:protected void checkValue(Object value)throws IllegalArgumentException;
- E. Change Line 1 to extend java.lang.AutoCloseable:public interface API extends AutoCloseable {
Answer: A,B
NEW QUESTION 62
Given:
What is the result?
- A. 0
- B. It fails to compile.
- C. A java.lang.IllegalArgumentException is thrown.
- D. nothing
- E. 1
Answer: B
Explanation:
NEW QUESTION 63
Given:
If file "App.config" is not found, what is the result?
- A. Configuration is OK
- B. The compilation fails.
- C. nothing
- D. Exception in thread "main" java.lang.Error:Fatal Error: Configuration File, App.config, is missing.
Answer: B
Explanation:
NEW QUESTION 64
Given:
executed with this command:
java Main one two three
What is the output of this class?
- A. 1) one2) two3) three
- B. A java.lang.ArrayIndexOutOfBoundsException is thrown.
- C. nothing
- D. The compilation fails.
- E. 1) one
Answer: A
NEW QUESTION 65
Given:
Assuming that this code compiles correctly, which three statements are true? (Choose three.)
- A. A cannot be abstract.
- B. B is a subtype of A.
- C. B cannot be abstract.
- D. B cannot be final.
- E. A is a subtype of B.
- F. A cannot be final.
Answer: B,C,F
NEW QUESTION 66
Given:
What is the result?
- A. [0,0] = Red[0,1] = White[1,0] = Black[1,1] = Blue[2,0] = Yellow[2,1] = Green[3,0] = Violet
- B. [0,0] = Red[1,0] = Black[2,0] = Blue
- C. java.lang.ArrayIndexOutOfBoundsException thrown
- D. [0,0] = Red[0,1] = White[1,0] = Black[2,0] = Blue[2,1] = Yellow[2,2] = Green[2,3] = Violet
Answer: D
Explanation:
NEW QUESTION 67
Given the code fragment:
What is the result?
- A. true false false
- B. false true false
- C. false true true
- D. false false true
Answer: B
Explanation:
NEW QUESTION 68
Given:
public class X {
}
and
public final class Y extends X {
}
What is the result of compiling these two classes?
- A. The compilation succeeds.
- B. The compilation fails because there is no zero args constructor defined in class X.
- C. The compilation fails because either class X or class Y needs to implement the toString() method.
- D. The compilation fails because a final class cannot extend another class.
Answer: C
Explanation:
NEW QUESTION 69
Given:
You want the code to produce this output:
John
Joe
Jane
Which code fragment should be inserted on line 1 and line 2 to produce the output?
- A. Insert Comparable<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2. - B. Insert Comparator<Person> on line 1.
Insert
public int compare(Person person) {
return person.name.compare(this.name);
}
on line 2. - C. Insert Comparator<Person> on line 1.
Insert
public int compareTo(Person person) {
return person.name.compareTo(this.name);
}
on line 2. - D. Insert Comparator<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.
Answer: C
NEW QUESTION 70
......
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