[Dec 04, 2023] Today Updated 1z1-819 Exam Dumps Actual Questions [Q70-Q94]

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[Dec 04, 2023] Today Updated 1z1-819 Exam Dumps Actual Questions

1z1-819 exam dumps with real Oracle questions and answers

The Oracle 1z1-819 exam covers a wide range of topics, including Java language fundamentals, object-oriented programming, concurrency, JDBC, and modular programming. It also tests developers’ ability to develop robust and secure applications using the latest Java SE 11 features and APIs.

 

Q70. Given the code fragment:

What is the result?

 
 
 
 

Q71. Given the code fragment:

What is the result?

 
 
 
 

Q72. Given:

and

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

 
 
 
 

Q73. Given the code fragment:

What is the result?

 
 
 
 
 

Q74. Given:

When run and all three files exist, what is the state of each reader on Line 1?

 
 
 
 

Q75. Given:

What is the result?

 
 
 
 
 
 
 

Q76. Given:

Which would cause s to be AQCD?

 
 
 
 

Q77. Given:

What is the result?

 
 
 
 

Q78. Which module-info.java is correct for a service provider for a print service defined in the PrintServiceAPI module?

 
 
 
 

Q79. Given:

Which is true?

 
 
 
 

Q80. Given:

executed with this command:
java Main one two three
What is the result?

 
 
 
 
 

Q81. Which is the correct order of possible statements in the structure of a Java class file?

 
 
 
 
 

Q82. Given:

Which two methods modify field values? (Choose two.)

 
 
 
 
 

Q83. Given:

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

 
 
 
 
 
 

Q84. Given:

What is the result?

 
 
 
 

Q85. Given:

What is the result?

 
 
 
 

Q86. Given:

What is required to make the Foo class thread safe?

 
 
 
 

Q87. Given:

It is required that if p instanceof Pair then p.isValid() returns true.
Which is the smallest set of visibility changes to insure this requirement is met?

 
 
 
 

Q88. Given:

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

 
 
 
 
 

Q89. A company has an existing sales application using a Java 8 jar file containing packages:
com.company.customer;
com.company.customer.orders;
com.company.customer.info;
com.company.sales;
com.company.sales.leads;
com.company.sales.closed;
com.company.orders;
com.company.orders.pending;
com.company.orders.shipped.
To modularize this jar file into three modules, customer, sales, and orders, which module-info.java would be correct?
A)

B)

C)

D)

 
 
 
 

Q90. Given:

What is the expected result of javac?

 
 
 
 

Q91. Given:

What is the output?

 
 
 
 

Q92. Given:
var data = new ArrayList<>();
data.add(“Peter”);
data.add(30);
data.add(“Market Road”);
data.set(1, 25);
data.remove(2);
data.set(3, 1000L);
System.out.print(data);
What is the output?

 
 
 
 

Q93. Given the code fragment:

What is the result?

 
 
 
 
 

Q94. Which two safely validate inputs? (Choose two.)

 
 
 
 
 

Exam Sure Pass Oracle Certification with 1z1-819 exam questions: https://www.dumptorrent.com/1z1-819-braindumps-torrent.html

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