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NEW QUESTION # 36
Given:
public class Canvas implements Drawable {
public void draw () { }
}
public abstract class Board extends Canvas { }
public class Paper extends Canvas {
protected void draw (int color) { }
}
public class Frame extends Canvas implements Drawable {
public void resize () { }
}
public interface Drawable {
public abstract void draw ();
}
Which statement is true?
- A. Board does not compile.
- B. Drawable does not compile.
- C. Frame does not compile.
- D. Paper does not compile.
- E. All classes compile successfully.
Answer: D
NEW QUESTION # 37
Given:
What is the result?
- A. 100 0 : 100 200 ;
- B. 100 200 : 100 0 ;
- C. 100 0 : 100 0 ;
- D. 100 200 : 100 200 ;
Answer: B
NEW QUESTION # 38
Given the content:
and given the code fragment:
Which two code fragments, when inserted at line 1independently, enable the code to print
"Wie geht's?"
- A. currentLocale = new Locale.Builder ().setLanguage ("de").setRegion ("DE").build();
- B. currentlocale = new Locale();
currentLocale.setLanguage ("de");
currentLocale.setRegion ("DE"); - C. currentLocale = new Locale ("de", "DE");
- D. currentLocale = Locale.getInstance(Locale.GERMAN,Locale.GERMANY);
- E. currentLocale = Locale.GERMAN;
Answer: A
NEW QUESTION # 39
Given:
final class Folder {//line n1
//line n2
public void open () {
System.out.print("Open");
}
}
public class Test {
public static void main (String [] args) throws Exception {
try (Folder f = new Folder()) {
f.open();
}
}
}
Which two modifications enable the code to print Open Close?
- A. Replace line n1 with:
class Folder implements AutoCloseable { - B. Replace line n1 with:
class Folder extends Exception { - C. At line n2, insert:
public void close () throws IOException {
System.out.print("Close");
} - D. Replace line n1 with:
class Folder extends Closeable { - E. At line n2, insert:
final void close () {
System.out.print("Close");
}
Answer: A,C
NEW QUESTION # 40
Given:
And given the commands:
What is the result?
- A. Compilation fails.
- B. Failure
- C. An exception is thrown at runtime.
- D. Success
Answer: B
NEW QUESTION # 41
Given the code fragment:
What is the result?
Word: why what when
- A.
- B. Word: why Word: why what Word: why what when
- C. Word: why Word: what Word: when
- D. Compilation fails at line n1.
Answer: B
NEW QUESTION # 42
You want to create a singleton class by using the Singleton design pattern.
Which two statements enforce the singleton nature of the design?
- A. Make the constructor private.
- B. Override equals() and hashCode() methods of the java.lang.Object class.
- C. Make the class static.
- D. Use a static reference to point to the single instance.
- E. Implement the Serializable interface.
Answer: A,D
NEW QUESTION # 43
For which three objects must a vendor provide implementations in its JDBC driver?
- A. Connection
- B. Statement
- C. SQLException
- D. Time
- E. Date
- F. DriverManager
- G. ResultSet
Answer: A,B,G
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 # 44
The following grid shows the state of a 2D array:
This grid is created with the following code:
Which line of code, when inserted in place of //line n1. adds an x into the grid so that the grid contains three consecutive X'S?
- A. qrid [0] [2] = 'X' ;
- B. qrid [1] [3] = 'X' ;
- C. qrid [2] [0] = 'X' ;
- D. qrid [3] [1] = 'X' ;
- E. qrid [1] [2] = 'X' ;
Answer: C
NEW QUESTION # 45
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 46
Which two statements are true about localizing an application?
- A. Language and region-specific programs are created using localized data.
- B. Textual elements (messages and GUI labels) are hard-coded in the code.
- C. Language codes use lowercase letters and region codes use uppercase letters.
- D. Resource bundle files include data and currency information.
- E. Support for new regional languages does not require recompilation of the code.
Answer: C,E
Explanation:
Explanation/Reference:
Reference: http://docs.oracle.com/javase/7/docs/technotes/guides/intl/
NEW QUESTION # 47
Given:
final class Folder { //line n1
/ /line n2
public void open () {
System.out.print("Open");
}
}
public class Test {
public static void main (String [] args) throws Exception {
try (Folder f = new Folder()) {
f.open();
}
}
}
Which two modifications enable the code to print Open Close?
- A. Replace line n1 with:
class Folder implements AutoCloseable { - B. Replace line n1 with:
class Folder extends Exception { - C. Replace line n1 with:
class Folder extends Closeable { - D. At line n2, insert:
final void close () {
System.out.print("Close");
} - E. At line n2, insert:
public void close () throws IOException {
System.out.print("Close");
}
Answer: A,B
NEW QUESTION # 48
Given:
public interface Moveable<Integer> {
public default void walk (Integer distance) {System.out.println("Walking");) public void run(Integer distance);
}
Which statement is true?
- A. Moveable can be used as below:
Moveable<Integer> animal = n - > System.out.println("Running" + n);
animal.run(100);
animal.walk(20); - B. Movable cannot be used in a lambda expression.
- C. Moveable can be used as below:
Moveable animal = (Integer n) - > System.out.println(n);
animal.run(100);
Moveable.walk(20); - D. Moveable can be used as below:
Moveable<Integer> animal = n - >n + 10;
animal.run(100);
animal.walk(20);
Answer: D
NEW QUESTION # 49
Given the code fragment:
and the information:
* The required database driver is configured in the classpath.
* The appropriate database is accessible with the dbURL, username, and passWord exists.
What is the result?
- A. A ClassNotFoundException is thrown at runtime.
- B. The program prints nothing.
- C. A SQLException is thrown at runtime.
- D. The program prints Connection Established.
Answer: D
NEW QUESTION # 50
Given the code fragments:
class TechName {
String techName;
TechName (String techName) {
this.techName=techName;
}
}
and
List<TechName> tech = Arrays.asList (
new TechName("Java-"),
new TechName("Oracle DB-"),
new TechName("J2EE-")
);
Stream<TechName> stre = tech.stream();
//line n1
Which should be inserted at line n1 to print Java-Oracle DB-J2EE-?
- A. stre.forEachOrdered(System.out::print);
- B. stre.forEach(System.out::print);
- C. stre.map(a-> a).forEachOrdered(System.out::print);
- D. stre.map(a-> a.techName).forEach(System.out::print);
Answer: C
NEW QUESTION # 51
Given the code fragment:
List<String> nL = Arrays.asList("Jim", "John", "Jeff");
Function<String, String> funVal = s -> "Hello : ".contact(s);
nL.Stream()
.map(funVal)
.peek(System.out::print);
What is the result?
Hello : Jim Hello : John Hello : Jeff
- A. Jim John Jeff
- B. The program prints nothing.
- C.
- D. A compilation error occurs.
Answer: B
NEW QUESTION # 52
Given the code fragment:
public class Foo {
public static void main (String [ ] args) {
Map<Integer, String> unsortMap = new HashMap< > ( );
unsortMap.put (10, "z");
unsortMap.put (5, "b");
unsortMap.put (1, "d");
unsortMap.put (7, "e");
unsortMap.put (50, "j");
Map<Integer, String> treeMap = new TreeMap <Integer, String> (new
Comparator<Integer> ( ) {
@Override public int compare (Integer o1, Integer o2) {return o2.compareTo (o2); } } ); treeMap.putAll (unsortMap); for (Map.Entry<Integer, String> entry : treeMap.entrySet () ) { System.out.print (entry.getValue () + " ");
}
}
}
What is the result?
- A. z b d e j
- B. d b e z j
- C. A compilation error occurs.
- D. j z e b d
Answer: A
NEW QUESTION # 53
Given:
interface Rideable {Car getCar (String name); }
class Car {
private String name;
public Car (String name) {
this.name = name;
}
}
Which code fragment creates an instance of Car?
- A. Car auto = Car : : new;
Car vehicle = auto : : getCar("MyCar"); - B. Car vehicle = Rideable : : new : : getCar("MyCar");
- C. Car auto = Car ("MyCar"): : new;
- D. Rideable rider = Car : : new;
Car vehicle = rider.getCar("MyCar");
Answer: D
NEW QUESTION # 54
Given:
and the code fragment:
Which definition of the ColorSorterclass sorts the blocks list?
- A.
- B.
- C.
- D.
Answer: A
NEW QUESTION # 55
Given that course.txt is accessible and contains:
Course : : Java
and given the code fragment:
public static void main (String[ ] args) {
int i;
char c;
try (FileInputStream fis = new FileInputStream ("course.txt");
InputStreamReader isr = new InputStreamReader(fis);) {
while (isr.ready()) { //line n1
isr.skip(2);
i = isr.read ();
c = (char) i;
System.out.print(c);
}
} catch (Exception e) {
e.printStackTrace();
}
}
What is the result?
- A. The program prints nothing.
- B. ueJa
- C. A compilation error occurs at line n1.
- D. ur :: va
Answer: D
NEW QUESTION # 56
Given the code fragment:
What is the result?
- A. A compilation error occurs because the IOException isn't declared to be thrown or caught?
- B. The code reads the password without echoing characters on the console.
- C. A compilation error occurs at line n1.
- D. A compilation error occurs at line n2.
Answer: A
NEW QUESTION # 57
Given the code fragment:
What is the result?
- A. A compilation error occurs.
- B. Val:20 Val:40 Val:60
- C. Val:10 Val:20 Val:30
- D. Val: Val: Val:
Answer: B
NEW QUESTION # 58
Given the code fragment:
List<String> nL = Arrays.asList("Jim", "John", "Jeff");
Function<String, String> funVal = s -> "Hello : ".contact(s);
nL.Stream()
.map(funVal)
.peek(System.out::print);
What is the result?
- A. Jim John Jeff
- B. A compilation error occurs.
- C. The program prints nothing.
- D. Hello : Jim Hello : John Hello : Jeff
Answer: B
NEW QUESTION # 59
Given the code fragment
Which code fragments, inserted independently, enable the code compile?
- A. fvar = 200; cvar = 400;
- B. t.fvar = 200;
- C. this.fvar = 200;
Test2.cvar = 400; - D. cvar = 400;
- E. this.fvar = 200; this.cvar = 400;
- F. t.fvar = 200; Test2.cvar = 400;
Answer: D
NEW QUESTION # 60
Given:
and the code fragment:
What is the result?
- A. A compilation error occurs because the tryblock doesn't have a catchor finallyblock.
- B. The program compiles successfully.
- C. A compilation error occurs at line n1.
- D. A compilation error occurs at line n2.
Answer: A
NEW QUESTION # 61
......
The Oracle 1z1-809 exam consists of 85 multiple-choice questions and lasts for 150 minutes. The passing score is 65%, and the exam is available in multiple languages. Candidates must register for the exam through the Oracle website and pay a fee. Once you pass the exam, you will receive an official certification from Oracle that you can add to your resume and LinkedIn profile.
Oracle 1z0-809 exam, also known as the Java SE 8 Programmer II exam, is a certification exam that tests the proficiency of Java developers in advanced topics related to the Java programming language. 1z1-809 exam is designed for individuals who have already obtained their Oracle Certified Associate (OCA) certification and are interested in further enhancing their skills in Java programming.
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