[Nov 24, 2024] Powerful 1z1-819 PDF Dumps for 1z1-819 Questions [Q175-Q191]

[Nov 24, 2024] Powerful 1z1-819 PDF Dumps for 1z1-819 Questions

Authentic 1z1-819 Dumps – Free PDF Questions to Pass

Oracle 1Z0-819 certification is a valuable asset for Java developers seeking career advancement and recognition in the industry. It demonstrates to employers and clients that the certified professional has a deep understanding of Java programming and is capable of developing high-quality Java applications. Additionally, the certification provides a competitive edge in the job market and opens up new career opportunities for the certified professional. Whether you are a student, a Java developer, or an IT professional, achieving the Oracle 1Z0-819 certification can help you take your career to the next level.

Preparing for the Oracle 1Z0-819 exam requires a solid understanding of Java SE 11 concepts and hands-on experience with Java programming. Oracle recommends that candidates take the Java SE 11 Developer learning path, which includes several training courses, practice exams, and hands-on labs. In addition, candidates can use online resources such as books, blogs, and forums to supplement their learning.

Q175. Given:

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

 setCCount(c) = cCount;

 tCount = tCount;

 setGCount(g);

 cCount = setCCount(c);

 aCount = a;

Q176. Given:

and:

Which code, when inserted on line 10, prints the number of unique localities from the roster list?

 .map(Employee::getLocality)
.distinct()
.count();

 map(e > e.getLocality())
.count();

 .map(e > e.getLocality())
.collect(Collectors.toSet())
.count();

 .filter(Employee::getLocality)
.distinct()
.count();

Q177. Given:

Which statement is true?

 Class Tester does not need to import java.time.LocalDate because it is already visible to members of the package test.

 All classes from the package java.time. are loaded for the class Diary.

 Only LocalDate class from java.time package is loaded.

 Tester must import java.time.LocalDate in order to compile.

Q178. 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

Q179. Given:

What is the result?

 Good Morning, Potter

 Good Night, Potter

 Good Morning, Harry

 Good Night, Harry

Q180. Given the code fragment:

What is the result?

 [Red:100, Red75, Yello:75, Yellow:50]

 An Exception is thrown at runtime.

 [Red:75, Red:100, Yellow:500, Red100 Red: 75]

 Yellow:75, Yellow:50, Red:100, Red:75]

 [Yellow:50, yellow:75, Red:75, Red:100]

Q181. Which code fragment represents a valid Comparatorimplementation?

 

 

 

 

Q182. Given the code fragment:

You want to display the value of currency as $100.00.
Which code inserted on line 1 will accomplish this?

 NumberFormat formatter = NumberFormat.getInstance(locale).getCurrency();

 NumberFormat formatter = NumberFormat.getCurrency(locale);

 NumberFormat formatter = NumberFormat.getInstance(locale);

 NumberFormat formatter = NumberFormat.getCurrencyInstance(locale);

Q183. Given:

Which one is correct?

 An IllegalThreadStateException is thrown at run time.

 Three threads are created.

 The compilation fails.

 Four threads are created.

Q184. Given:

Which two lines can replace line 1 so that the Y class compiles? (Choose two.)

 map.forEach((k, v) -> set(v)));

 set(map.values());

 super.set(List<String> map)

 super.set(map.values());

 set(map)

Q185. Given:

What is the result?

 Green

 Mr, Blue

 Mr, Green

 An exception is thrown at runtime

Q186. 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()

Q187. Given:
String originalPath = “data\projects\a-project\..\..\another-project”; Path path = Paths.get(originalPath); System.out.print(path.normalize()); What is the result?

 dataanother-project

 dataprojectsa-projectanother-project

 data\projects\a-project\..\..\another-project

 dataprojectsa-project….another-project

Q188. Given:

What is the output?

 null

 A NoSuchElementException is thrown at run time.

 Duke

 A NullPointerException is thrown at run time.

Q189. Given:

Which three classes successfully override showFirst ()?

 

 

 

 

 

 

Q190. Which code fragment compiles?

 Option A

 Option B

 Option C

 Option D

Q191. 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;.

 Loading …

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