[2025年03月05日] 1Z0-819のPDFで最近更新された問題です集試験点数を伸ばそう [Q113-Q135]

[2025年03月05日] 1Z0-819のPDFで最近更新された問題です集試験点数を伸ばそう

1Z0-819完全版問題集には無料PDF問題で合格させる

質問 # 113
Given these classes:

And this code fragment:

What is the result?

A. The program prints: c
B. The program fails to compile.
C. The program prints: A
D. The program throws an exception.

正解：D

質問 # 114
Given the code fragment:

What is the result?

A. ab cd ef
B. abc def
C. The compilation fails.
D. An ArrayIndexOutOfBoundsException is thrown at runtime.
E. ad be cf

正解：E

質問 # 115
Given:

Which two are correct? (Choose two.)

A. The program prints 1 4 2 3, but the order is unpredictable.
B. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5.
C. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5, but the order is unpredictable.
D. Replacing forEach() with forEachOrdered(), the program prints 1 2 3 4 5.
E. The output will be exactly 2 1 3 4 5.

正解：A、D

解説：

質問 # 116
Given:

Which two interfaces can be used in lambda expressions? (Choose two.)

A. MyInterface1
B. MyInterface4
C. MyInterface3
D. MyInterface2
E. MyInterface5

正解：D、E

質問 # 117
Given:

Which annotation should be used to remove warnings from compilation?

A. @SuppressWarnings("rawtypes") on main and @SafeVarargs on the print method
B. @SuppressWarnings("unchecked") on main and @SafeVarargs on the print method
C. @SuppressWarnings("all") on the main and print methods
D. @SuppressWarnings on the main and print methods

正解：B

解説：

質問 # 118
Given:

and
checkQuality(QUALITY.A);
and

Which code fragment can be inserted into the switch statement to print Best?

A. A
B. A.toString()
C. QUALITY.A.ValueOf()
D. QUALITY.A

正解：A

質問 # 119
Given:

Which three classes successfully override printOne()? (Choose three.)

A. Option C
B. Option B
C. Option D
D. Option E
E. Option A
F. Option F

正解：A、C、E

質問 # 120
Given:

How many LocalDate objects are created in this example?

A. 0
B. 1
C. 2
D. 3

正解：B

質問 # 121
Given:

Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)

A. setCCount(c) = cCount;
B. tCount = tCount;
C. cCount = setCCount(c);
D. aCount = a;
E. setGCount(g);

正解：B、D

質問 # 122
Which is a proper JDBC URL?

A. http://localhost mysql.jdbc:3306/database
B. jdbc:mysql://localhost:3306/database
C. http://localhost.mysql.com:3306/database
D. jdbe.mysql.com://localhost:3306/database

正解：B

質問 # 123
Which two interfaces are considered to be functional interfaces? (Choose two.)
@FunctionalInterface

A. interface InterfaceE {
public boolean equals(int i);
int breed(int x);
}
interface InterfaceA {
B. int GERM = 13;
public default int getGERM() { return get(); }
private int get() { return GERM; }
public boolean equals(Object o);
int breed(int x);
}
C. interface InterfaceC {
public boolean equals(Object o);
int breed(int x);
int calculate(int x, int y);
}
@FunctionalInterface
D. int GERM = 13;
public default int getGERM() { return GERM; }
}
interface InterfaceB {
E. interface InterfaceD {
int breed(int x);
}
@FunctionalInterface

正解：A、C

解説：
Explanation/Reference:

質問 # 124
A bookstore's sales are represented by a list of Sale objects populated with the name of the customer and the books they purchased.
public class Sale {
private String customer;
private List<Book> items;
// constructor, setters and getters not shown
}
public class Book {
private String name;
private double price;
// constructor, setters and getters not shown
}
Given a list of Sale objects, tList, which code fragment creates a list of total sales for each customer in ascending order?

A. Option A
B. Option C
C. Option B
D. Option D

正解：B

質問 # 125
Given:

What is the result?

A. b3
B. b2
C. 0
D. The compilation fails due to an error in line 1.
E. 1
F. b1
G. 2

正解：E

解説：

質問 # 126
Given the code fragment:

What is the result?

A. false false true
B. false true true
C. true false false
D. false true false

正解：D

解説：

質問 # 127
Given the contents:
MessageBundle.properties file:
message=Hello
MessageBundle_en.properties file:
message=Hello (en)
MessageBundle_US.properties file:
message=Hello (US)
MessageBundle_en_US.properties file:
message=Hello (en_US)
MessageBundle_fr_FR.properties file:
message=Bonjour
and the code fragment:
Locale.setDefault(Locale.FRANCE);
Locale currentLocale = new Locale.Builder().setLanguage("en").build();
ResourceBundle messages = ResourceBundle.getBundle("MessageBundle", currentLocale); System.out. println(messages.getString("message")); Which file will display the content on executing the code fragment?

A. MessageBundle_en_US.properties
B. MessageBundle_US.properties
C. MessageBundle_en.properties
D. MessageBundle_fr_FR.properties
E. MessageBundle.properties

正解：D

質問 # 128
Given the code fragment:
Path currentFile = Paths.get("/scratch/exam/temp.txt");
Path outputFile = Paths get("/scratch/exam/new.txt");
Path directory = Paths.get("/scratch/");
Files.copy(currentFile, outputFile);
Files.copy(outputFile, directory);
Files.delete (outputFile);
The /scratch/exam/temp.txt file exists. The /scratch/exam/new.txt and /scratch/new.txt files do not exist.
What is the result?

A. A copy of /scratch/exam/new.txt exists in the /scratch directory and /scratch/exam/new.txt is deleted.
B. The program throws a FileaAlreadyExistsException.
C. /scratch/exam/new.txt and /scratch/new.txt are deleted.
D. The program throws a NoSuchFileException.

正解：D

解説：

質問 # 129
Given:

What is the result?

A. [A, B, C]
[A, B, C]
B. On line 9, an exception is thrown at run time.
C. [A, B, C]
followed by an exception thrown on line 11.
D. [A, B, C]
[ B, C]

正解：A

質問 # 130
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?

正解：B

質問 # 131
Consider this method declaration:

A) "SET SESSION AUTHORIZATION " + user
B) "SET SESSION AUTHORIZATION " + stmt.enquoteIdentifier(user)
Is A or B the correct replacement for <EXPRESSION> and why?

A. A, because it is unnecessary to enclose identifiers in quotes.
B. B, because all values provided by the calling code should be enquoted.
C. A, because it sends exactly the value of user provided by the calling code.
D. B, because enquoting values provided by the calling code prevents SQL injection.
E. A and B are functionally equivalent.

正解：C

質問 # 132
Given:

What is known about the Sportscar class?

A. The Sportscar subclass cannot override setTurbo method from the superclass Automobile.
B. The Sportscar class is a subclass of Automobile and inherits its methods.
C. The Sportscar class is a superclass that has more functionality than the Automobile class.
D. The Sportscar class inherits the setTurbo method from the superclass Automobile.

正解：B

質問 # 133
Given:

A) An exception is thrown at run time.
B)

C) The compilation fails due to an error on line 2.
D) The compilation fails due to an error on line 1.
E)

F)
The compilation fails due to an error on line 3.