最高で有効な1Z0-819試験問題と解答PDF 1Z0-819問題集（最近更新された262問あります) [Q128-Q144]

最高で有効な1Z0-819試験問題と解答PDF 1Z0-819問題集（最近更新された262問あります)

試験問題解答は1Z0-819学習ガイド

質問 # 128
Given:

What is the result?

A. Good Night, Harry
B. Good Night, Potter
C. Good Morning, Potter
D. Good Morning, Harry

正解：B

解説：

質問 # 129
Given:

What is the result?

A. Hello World
B. The compilation fails at line 9.
C. The compilation fails at line 8.
D. The compilation fails at line 2.

正解：A

解説：

質問 # 130
Given the content from the course.txt file:

Which code fragment at line 1 prints the lines that contain Java from the course.txt file?

正解：A

質問 # 131
Given:

Which two lines inserted in line 1 will allow this code to compile? (Choose two.)

A. abstract void walk();
B. protected void walk(){}
C. private void walk(){}
D. public abstract void walk();
E. void walk(){}

正解：B、D

質問 # 132
Given the code fragment:

You want to examine whether path is a directory.
Which code inserted on line 1 will accomplish this?

A. BasicFileAttributes attributes =Files.getAttribute (path, ''insdirectory'');
B. BasicFileAttributes attributes = Files.readAttributes(path, BasicFileAttributes.class
C. BasicFileAttributes attributes = Files isDirectory (path);
D. BasicFileAttributes attributes = Files, readAttributes (path, FileAttributes, class);

正解：D

質問 # 133
Given:

Which two changes need to be made to make this class compile? (Choose two.)

A. Change Line 1 to extend java.lang.AutoCloseable:public interface API extends AutoCloseable {
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 to an abstract method:public abstract void checkValue(Object value)throws IllegalArgumentException;
E. Change Line 2 access modifier to protected:protected void checkValue(Object value)throws IllegalArgumentException;

正解：B、D

質問 # 134
Given:

What is the result?

A. sphynx
oxicat
laperm
korat
bengal
abyssinian
B. abyssinian
oxicat
korat
laperm
bengal
sphynx
C. abyssinian
bengal
korat
laperm
oxicat
sphynx
D. nothing

正解：A

質問 # 135
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?

A. Stmt.setNull(2, java.lang, string);
B. Stmt.setNull(2, java,sql. Types, VARCHAR);
C. Stmt.setNull(2, null);
D. Stmt.setNull(2 string, class);

正解：B

質問 # 136
Given:

What is the output?

A. Bonjour le monde!Bonjour le monde!
B. Hello world!Hello world!
C. Hello world!Bonjour le monde!
D. Bonjour le monde!Hello world!

正解：D

解説：

質問 # 137
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. A and B are functionally equivalent.
C. B, because all values provided by the calling code should be enquoted.
D. A, because it sends exactly the value of user provided by the calling code.
E. B, because enquoting values provided by the calling code prevents SQL injection.

正解：D

質問 # 138
Given:

What will secure this code from a potential Denial of Service condition?

A. Before Line 1, check the size of dataFiles to make sure it does not exceed a threshold.
B. On Line 3, enclose processData(dataReader) with try with resources.
C. After Line 3, add dataReader.close().
D. After Line 4, add indexReader.close().
E. On Line 1, use try with resources when opening each dataReader.

正解：B

質問 # 139
Given:

Which two independent changes will make the Main class compile? (Choose two.)

A. Change line 1 to public class Student {.
B. Change line 3 to Student student = new Student("Biology");.
C. Change line 2 to public Student(String classname).
D. Change line 1 to static class Student {.
E. Move the entire Student class declaration to a separate Java file, Student.java.

正解：B、C

解説：