Latest Oracle 1z0-809 PDF and Dumps (2022) Free Exam Questions Answers [Q91-Q108]

NEW QUESTION 91
Which statement is true about java.util.stream.Stream?

NEW QUESTION 92
Which class definition compiles?

NEW QUESTION 93
Given the content of /resourses/Message.properties:
welcome1=”Good day!”
and given the code fragment:
Properties prop = new Properties ();
FileInputStream fis = new FileInputStream (“/resources/Message.properties”); prop.load(fis); System.out.println(prop.getProperty(“welcome1”)); System.out.println(prop.getProperty(“welcome2”, “Test”));//line n1 System.out.println(prop.getProperty(“welcome3”)); What is the result?
Good day!

NEW QUESTION 94
Given:

What is the result?

NEW QUESTION 95
Which class definition compiles?

NEW QUESTION 96
Given:
public enum USCurrency {
PENNY (1),
NICKLE(5),
DIME (10),
QUARTER(25);
private int value;
public USCurrency(int value) {
this.value = value;
}
public int getValue() {return value;}
}
public class Coin {
public static void main (String[] args) {
USCurrency usCoin =new USCurrency.DIME;
System.out.println(usCoin.getValue()):
}
}
Which two modifications enable the given code to compile?

NEW QUESTION 97
Which statement is true about the DriverManagerclass?

NEW QUESTION 98
Given the code format:

Which code fragment must be inserted at line 6 to enable the code to compile?

NEW QUESTION 99
Given the code fragment:

What is the result?

NEW QUESTION 100
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?

NEW QUESTION 101
Given the code fragment:
Stream<List<String>> iStr= Stream.of (
Arrays.asList (“1”, “John”),
Arrays.asList (“2”, null)0;
Stream<<String> nInSt = iStr.flatMapToInt ((x) -> x.stream ());
nInSt.forEach (System.out :: print);
What is the result?

NEW QUESTION 102
Given:

What is the result?

NEW QUESTION 103
Given:
IntStream stream = IntStream.of (1,2,3);
IntFunction<Integer> inFu= x -> y -> x*y;//line n1
IntStream newStream = stream.map(inFu.apply(10));//line n2
newStream.forEach(System.out::print);
Which modification enables the code fragment to compile?

NEW QUESTION 104
Given:

And given the code fragment:

NEW QUESTION 105
Given the code fragment:
List<String> codes = Arrays.asList (“DOC”, “MPEG”, “JPEG”);
codes.forEach (c -> System.out.print(c + ” “));
String fmt = codes.stream()
.filter (s-> s.contains (“PEG”))
.reduce((s, t) -> s + t).get();
System.out.println(“n” + fmt);
What is the result?

NEW QUESTION 106
Given the code fragment:

What is the result?

NEW QUESTION 107
Given:
class Vehicle {
int vno;
String name;
public Vehicle (int vno, String name) {
this.vno = vno,;
this.name = name;
}
public String toString () {
return vno + “:” + name;
}
}
and this code fragment:
Set<Vehicle> vehicles = new TreeSet <> ();
vehicles.add(new Vehicle (10123, “Ford”));
vehicles.add(new Vehicle (10124, “BMW”));
System.out.println(vehicles);
What is the result?

NEW QUESTION 108
Given the code fragments:
interface CourseFilter extends Predicate<String> {
public default boolean test (String str) {
return str.equals (“Java”);
}
}
and
List<String> strs = Arrays.asList(“Java”, “Java EE”, “Java ME”);
Predicate<String> cf1 = s – > s.length() > 3;
Predicate cf2 = new CourseFilter() { //line n1
public boolean test (String s) {
return s.contains (“Java”);
}
};
long c = strs.stream()
.filter(cf1)
.filter(cf2 //line n2
.count();
System.out.println(c);
What is the result?