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The Oracle 1Z0-809 exam is intended for those individuals who want to get the Oracle Certified Professional, Java SE 8 Programmer certification. The potential candidates for this test are those IT specialists who have some years of experience with Java SE 8 platform and hold the Oracle Certified Associate, Java SE 8 Programmer credential.

The Oracle 1Z0-809 is a 150-minute test with 85 questions, that are mainly of a multiple-choice format, but there may also be other types, such as drag and drop, simulations, or scenario-based. This certification exam is available in the English language and the passing score for it is 65%. However, you need to try to get more than that.

To pass the Oracle 1z1-809 exam, candidates need to demonstrate a deep understanding of these topics and be able to apply their knowledge to solve real-world programming problems. 1z1-809 exam consists of 85 multiple-choice and multiple-answer questions and must be completed within 150 minutes. The passing score for the exam is 65%.

 

NEW QUESTION # 106
Given the code fragment:

What is the result?

• A. A compilation error occurs at line n1.
• B. Logged out at: 2015-01-12T21:58:19.880Z
• C. Logged out at: 2015-01-12T21:58:00Z
• D. Can't logout

Answer: C

NEW QUESTION # 107
Given the code fragment:
List<Double> doubles = Arrays.asList (100.12, 200.32);
DoubleFunction funD = d -> d + 100.0;
doubles.stream (). forEach (funD); // line n1
doubles.stream(). forEach(e -> System.out.println(e)); // line n2
What is the result?

• A. A compilation error occurs at line n1.
• B. A compilation error occurs at line n2.
• C. 100.12200.32
• D. 200.12300.32

Answer: B

Explanation:

NEW QUESTION # 108
Given:
class Book {
int id;
String name;
public Book (int id, String name) {
this.id = id;
this.name = name;
}
public boolean equals (Object obj) { //line n1
boolean output = false;
Book b = (Book) obj;
if (this.name.equals(b name))}
output = true;
}
return output;
}
}
and the code fragment:
Book b1 = new Book (101, "Java Programing");
Book b2 = new Book (102, "Java Programing");
System.out.println (b1.equals(b2)); //line n2
Which statement is true?

• A. The program prints false.
• B. The program prints true.
• C. A compilation error occurs. To ensure successful compilation, replace line n1 with:boolean equals (Book obj) {
• D. A compilation error occurs. To ensure successful compilation, replace line n2 with:System.out.println (b1.equals((Object) b2));

Answer: B

NEW QUESTION # 109
Given:
class Book {
int id;
String name;
public Book (int id, String name) {
this.id = id;
this.name = name;
}
public boolean equals (Object obj) { //line n1
boolean output = false;
Book b = (Book) obj;
if (this.name.equals(b name))}
output = true;
}
return output;
}
}
and the code fragment:
Book b1 = new Book (101, "Java Programing");
Book b2 = new Book (102, "Java Programing");
System.out.println (b1.equals(b2)); //line n2
Which statement is true?

• A. The program prints false.
• B. A compilation error occurs. To ensure successful compilation, replace line n2 with:System.out.println
  (b1.equals((Object) b2));
• C. A compilation error occurs. To ensure successful compilation, replace line n1 with:boolean equals
  (Book obj) {
• D. The program prints true.

Answer: D

NEW QUESTION # 110
Given:

And given the code fragment:

What is the result?

• A. C2C2
• B. C1C1
• C. C1C2
• D. Compilation fails.

Answer: D

NEW QUESTION # 111
Given the code fragment:

What is the result?

• A. A compilation error occurs at line n1.
• B. Checking...
• C. A compilation error occurs at line n2.
• D. Checking...Checking...

Answer: A

NEW QUESTION # 112
Given:

and the code fragment:

What is the result?

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

Answer: D

NEW QUESTION # 113
Given the content:

and the code fragment:

What is the result?

• A. username = Enter User Name
  password = Enter Password
• B. username = Entrez le nom d'utilisateur
  password = Entrez le mot de passe
• C. A compilation error occurs.
• D. The program prints nothing.

Answer: B

NEW QUESTION # 114
Given:
class FuelNotAvailException extends Exception { }
class Vehicle {
void ride() throws FuelNotAvailException {//line n1
System.out.println("Happy Journey!");
}
}
class SolarVehicle extends Vehicle {
public void ride () throws FuelNotAvailException {//line n2
super ride ();
}
}
and the code fragment:
public static void main (String[] args) throws Exception {
Vehicle v = new SolarVehicle ();
v.ride();
}
Which modification enables the code fragment to print Happy Journey!?

• A. Replace line n2 with void ride() throws Exception {
• B. Replace line n2 with private void ride() throws FuelNotAvailException {
• C. Replace line n1 with public void ride() throws FuelNotAvailException {
• D. Replace line n1 with protected void ride() throws Exception {

Answer: A

NEW QUESTION # 115
Given the content:

and given the code fragment:

Which two code fragments, when inserted at line 1 independently, enable the code to print "Wie geht's?"

• A. currentLocale = new Locale ("de", "DE");
• B. currentlocale = new Locale();currentLocale.setLanguage ("de");currentLocale.setRegion ("DE");
• C. currentLocale = Locale.GERMAN;
• D. currentLocale = Locale.getInstance(Locale.GERMAN,Locale.GERMANY);
• E. currentLocale = new Locale.Builder ().setLanguage ("de").setRegion ("DE").build();

Answer: B,E

NEW QUESTION # 116
Given:

Which option fails?

• A. Foo<String, Integer> mark = new Foo<String, Integer> ("Steve", 100);
• B. Foo<String, String> grade = new Foo <> ("John", "A");
• C. Foo<Object, Object> percentage = new Foo<String, Integer>("Steve", 100);
• D. Foo<String, String> pair = Foo.<String>twice ("Hello World!");

Answer: A

NEW QUESTION # 117
Given:
class UserException extends Exception { }
class AgeOutOfLimitException extends UserException { }
and the code fragment:
class App {
public void doRegister(String name, int age)
throws UserException, AgeOutOfLimitException {
if (name.length () < 6) {
throw new UserException ();
} else if (age >= 60) {
throw new AgeOutOfLimitException ();
} else {
System.out.println("User is registered.");
}
}
public static void main(String[ ] args) throws UserException {
App t = new App ();
t.doRegister("Mathew", 60);
}
}
What is the result?

• A. A compilation error occurs in the main method.
• B. A UserException is thrown.
• C. User is registered.
• D. An AgeOutOfLimitException is thrown.

Answer: C

NEW QUESTION # 118
Given the code fragment:
ZonedDateTime depart = ZonedDateTime.of(2015, 1, 15, 3, 0, 0, 0, ZoneID.of("UTC-
7"));
ZonedDateTime arrive = ZonedDateTime.of(2015, 1, 15, 9, 0, 0, 0, ZoneID.of("UTC-
5"));
long hrs = ChronoUnit.HOURS.between(depart, arrive); //line n1
System.out.println("Travel time is" + hrs + "hours");
What is the result?

• A. Travel time is 4 hours
• B. Travel time is 8 hours
• C. Travel time is 6 hours
• D. An exception is thrown at line n1.

Answer: A

NEW QUESTION # 119
In 2015, daylight saving time in New York, USA, begins on March 8th at 2:00 AM. As a result, 2:00 AM becomes 3:00 AM.
Given the code fragment:

Which is the result?

• A. 3:00 - difference: 2
• B. 4:00 - difference: 2
• C. 2:00 - difference: 1
• D. 4:00 - difference: 3

Answer: B

NEW QUESTION # 120
Given the code fragment:

What is the result?

• A. Hi removed
• B. An UnsupportedOperationException is thrown at runtime.
• C. The program compiles, but it prints nothing.
• D. Compilation fails.

Answer: D

NEW QUESTION # 121
Given the definition of the Vehicle class:
class Vehicle {
String name;
void setName (String name) {
this.name = name;
}
String getName() {
return name;
}
}
Which action encapsulates the Vehicle class?

• A. Make the Vehicle class public.
• B. Make the setName method public.
• C. Make the getName method private.
• D. Make the name variable public.
• E. Make the name variable private.
• F. Make the setName method private.

Answer: D

NEW QUESTION # 122
Given the following code for a planet object:

And the following main method:

What is the output?

• A. Option C
• B. Option A
• C. Option E
• D. Option D
• E. Option B

Answer: D

NEW QUESTION # 123
Given:

and the command:
java Product 0
What is the result?

• A. A compilation error occurs at line n1.
• B. A NumberFormatException is thrown at run time.
• C. New Price: 0.0
• D. An AssertionError is thrown.

Answer: C

NEW QUESTION # 124
Given the code fragment:

What is the result?

• A. Word: why Word: what Word: when
• B. Compilation fails at line n1.
• C. Word: why Word: why what Word: why what when
• D. Word: why what when

Answer: D

NEW QUESTION # 125
Given:

Your design requires that:
* fuelLevel of Engine must be greater than zero when the start() method is invoked.
* The code must terminate if fuelLevel of Engine is less than or equal to zero.
Which code fragment should be added at line n1 to express this invariant condition?

• A. assert fuelLevel < 0: System.exit(0);
• B. assert (fuelLevel) : "Terminating...";
• C. assert fuelLevel > 0: "Impossible fuel" ;
• D. assert (fuelLevel > 0) : System.out.println ("Impossible fuel");

Answer: A

NEW QUESTION # 126
Given records from the Player table:

and given the code fragment:
try {
Connection conn = DriverManager.getConnection(URL, username, password); Statement st= conn.createStatement( ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); st.execute ("SELECT * FROM Player"); st.setMaxRows(2); ResultSet rs = st.getResultSet(); rs.absolute(3); while (rs.next ()) { System.out.println(rs.getInt(1) + " " + rs.getString(2));
}
} catch (SQLException ex) {
System.out.print("SQLException is thrown.");
}
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with URL, username, and password.
The SQL query is valid.
What is the result?

• A. 3 Sam
• B. 2 Jack3 Sam
• C. SQLException is thrown.
• D. The program prints nothing.

Answer: C

NEW QUESTION # 127
Which statement is true about the single abstract method of the java.util.function.Predicate interface?

• A. It accepts one argument and returns void.
• B. It accepts one argument and returns boolean.
• C. It accepts an argument and produces a result of any data type.
• D. It accepts one argument and always produces a result of the same type as the argument.

Answer: B

Explanation:
Explanation
References:

NEW QUESTION # 128
For which three objects must a vendor provide implementations in its JDBC driver? (Choose three.)

• A. Time
• B. Date
• C. ResultSet
• D. SQLException
• E. Statement
• F. DriverManager
• G. Connection

Answer: C,E,G

Explanation:
Explanation
Database vendors support JDBC through the JDBC driver interface or through the ODBC connection. Each driver must provide implementations of java.sql.Connection, java.sql.Statement, java.sql.PreparedStatement, java.sql.CallableStatement, and java.sql.Re sultSet. They must also implement the java.sql.Driver interface for use by the generic java.sql.DriverManager interface.

NEW QUESTION # 129
......

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