Free Oracle 1Z0-809 Exam Dumps

MultipleChoice

Given the code fragment:

UnaryOperator<Integer> uo1 = s -> s*2;line n1

List<Double> loanValues = Arrays.asList(1000.0, 2000.0);

loanValues.stream()

.filter(lv -> lv >= 1500)

.map(lv -> uo1.apply(lv))

.forEach(s -> System.out.print(s + '' ''));

What is the result?

MultipleChoice

Given the definition of the Emp class:

public class Emp

private String eName;

private Integer eAge;

Emp(String eN, Integer eA) {

this.eName = eN;

this.eAge = eA;

}

public Integer getEAge () {return eAge;}

public String getEName () {return eName;}

}

and code fragment:

List<Emp>li = Arrays.asList(new Emp(''Sam'', 20), New Emp(''John'', 60), New Emp(''Jim'', 51));

Predicate<Emp> agVal = s -> s.getEAge() > 50;//line n1

li = li.stream().filter(agVal).collect(Collectors.toList());

Stream<String> names = li.stream()map.(Emp::getEName);//line n2

names.forEach(n -> System.out.print(n + '' ''));

What is the result?

MultipleChoice

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?

MultipleChoice

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

(o1); } } );

treeMap.putAll (unsortMap);

for (Map.Entry<Integer, String> entry : treeMap.entrySet () ) {

System.out.print (entry.getValue () + '' '');

}

}

}

What is the result?

MultipleChoice

Given the code fragment:

UnaryOperator uo1 = s -> s*2;line n1

List loanValues = Arrays.asList(1000.0, 2000.0);

loanValues.stream()

.filter(lv -> lv >= 1500)

.map(lv -> uo1.apply(lv))

.forEach(s -> System.out.print(s + '' ''));

What is the result?

MultipleChoice

Given:

class CheckClass {

public static int checkValue (String s1, String s2) {

return s1 length() -- s2.length();

}

}

and the code fragment:

String[] strArray = new String [] {''Tiger'', ''Rat'', ''Cat'', ''Lion''}

//line n1

for (String s : strArray) {

System.out.print (s + '' '');

}

Which code fragment should be inserted at line n1 to enable the code to print Rat Cat Lion Tiger?

MultipleChoice

Given that /green.txt and /colors/yellow.txt are accessible, and the code fragment:

Path source = Paths.get(''/green.txt);

Path target = Paths.get(''/colors/yellow.txt);

Files.move(source, target, StandardCopyOption.ATOMIC_MOVE);

Files.delete(source);

Which statement is true?

MultipleChoice

Given:

Book.java:

public class Book {

private String read(String bname) { return ''Read'' + bname }

}

EBook.java:

public class EBook extends Book {

public class String read (String url) { return ''View'' + url }

}

Test.java:

public class Test {

public static void main (String[] args) {

Book b1 = new Book();

b1.read(''Java Programing'');

Book b2 = new EBook();

b2.read(''http://ebook.com/ebook'');

}

}

What is the result?

MultipleChoice

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?

MultipleChoice

Given the code fragment:

List colors = Arrays.asList(''red'', ''green'', ''yellow'');

Predicate test = n - > {

System.out.println(''Searching...'');

return n.contains(''red'');

};

colors.stream()

.filter(c -> c.length() > 3)

.allMatch(test);

What is the result?