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NEW QUESTION # 95
Given the code fragment:
BiFunction<Integer, Double, Integer> val = (t1, t2) -> t1 + t2; //line n1 System.out.println(val.apply(10, 10.5)); What is the result?
- A. A compilation error occurs at line n2.
- B. A compilation error occurs at line n1.
- C. 0
- D. 20.5
Answer: B
NEW QUESTION # 96
Given:
public class SampleClass {
public static void main(String[] args) {
AnotherSampleClass asc = new AnotherSampleClass(); SampleClass sc = new
SampleClass();
sc = asc;
System.out.println("sc: " + sc.getClass());
System.out.println("asc: " + asc.getClass());
}}
class AnotherSampleClass extends SampleClass {
}
What is the result?
- A. sc: class AnotherSampleClass asc: class AnotherSampleClass
- B. sc: class SampleClass asc: class AnotherSampleClass
- C. sc: class Object asc: class AnotherSampleClass
- D. sc: class AnotherSampleClass asc: class SampleClass
Answer: A
NEW QUESTION # 97
Given the code fragment:
What is the result?
- A. null
- B. [Java, J2EE, J2ME, JSTL]
- C. [Java, J2EE, J2ME, JSTL, JSP]
- D. A compilation error occurs.
Answer: B
NEW QUESTION # 98
Which statement is true about java.util.stream.Stream?
- A. A parallel stream is always faster than an equivalent sequential stream.
- B. The execution mode of streams can be changed during processing.
- C. Streams are intended to modify the source data.
- D. A stream cannot be consumed more than once.
Answer: B
NEW QUESTION # 99
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?
- A. A compilation error occurs at line n2.
- B. A compilation error occurs at line n1.
- C. John Jim
- D. Sam John Jim
Answer: D
NEW QUESTION # 100
Given the code fragment:
What is the result?
- A. 5/4/14T00:00:00.000
- B. An exception is thrown at runtime.
- C. May 04, 2014T00:00:00.000
- D. 2014-05-04T00:00.000
Answer: B
NEW QUESTION # 101
Given the definition of the Country class:
public class country {
public enum Continent {ASIA, EUROPE}
String name;
Continent region;
public Country (String na, Continent reg) {
name = na, region = reg;
}
public String getName () {return name;}
public Continent getRegion () {return region;}
}
and the code fragment:
List<Country> couList = Arrays.asList (
new Country ("Japan", Country.Continent.ASIA),
new Country ("Italy", Country.Continent.EUROPE),
new Country ("Germany", Country.Continent.EUROPE)); Map<Country.Continent, List<String>> regionNames = couList.stream () .collect(Collectors.groupingBy (Country ::getRegion, Collectors.mapping(Country::getName, Collectors.toList())))); System.out.println(regionNames);
What is the output?
- A. {EUROPE = [Germany], EUROPE = [Italy], ASIA = [Japan]}
- B. {EUROPE = [Germany, Italy], ASIA = [Japan]}
- C. {EUROPE = [Italy, Germany], ASIA = [Japan]}
- D. {ASIA = [Japan], EUROPE = [Italy, Germany]}
Answer: C
NEW QUESTION # 102
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?
- A. Remove the new keyword from the instantion of usCoin.
- B. Nest the USCurrency enumeration declaration within the Coin class.
- C. Add the final keyword in the declaration of value.
- D. Make the getter method of value as a static method.
- E. Make the USCurrency enumeration constructor private.
Answer: B,C
NEW QUESTION # 103
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. 4:00 - difference: 3
- B. 4:00 - difference: 2
- C. 3:00 - difference: 2
- D. 2:00 - difference: 1
Answer: B
NEW QUESTION # 104
Given the code fragments:
and
What is the result?
- A. [Dog, Cat, Mouse]
- B. null
- C. DogCatMouse
- D. A compilation error occurs.
Answer: A
NEW QUESTION # 105
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.map(a-> a).forEachOrdered(System.out::print);
- B. stre.forEach(System.out::print);
- C. stre.map(a-> a.techName).forEach(System.out::print);
- D. stre.forEachOrdered(System.out::print);
Answer: C
NEW QUESTION # 106
Given:
and this code fragment:
What is the result?
- A. Open-Close-Open-Close-
- B. A compilation error occurs at line n1.
- C. Open-Close-Open-
- D. Open-Close-
Exception - 1
Open-Close-
Answer: B
NEW QUESTION # 107
Given the code fragment:
List<String> empDetails = Arrays.asList("100, Robin, HR",
" 200, Mary, AdminServices",
" 101, Peter, HR");
empDetails.stream()
.filter(s-> s.contains("1"))
.sorted()
.forEach(System.out::println); //line n1
What is the result?
- A. 100, Robin, HR
2 00, Mary, AdminServices
1 01, Peter, HR - B. 100, Robin, HR
101, Peter, HR - C. 100, Robin, HR
1 01, Peter, HR
2 00, Mary, AdminServices - D. A compilation error occurs at line n1.
Answer: C
NEW QUESTION # 108
Given the code fragment:
What is the result?
- A. 6 : 5 : 6
- B. 4 : 4 : 4
- C. 5 : 3 : 6
- D. 3 : 3 : 4
Answer: C
NEW QUESTION # 109
Given:
public class Counter {
public static void main (String[ ] args) {
int a = 10;
int b = -1;
assert (b >=1) : "Invalid Denominator";
int = a / b;
System.out.println (c);
}
}
What is the result of running the code with the option?
- A. 0
- B. 1
- C. An AssertionError is thrown.
- D. A compilation error occurs.
Answer: C
NEW QUESTION # 110
Given that version.txt is accessible and contains:
1234567890
and given the code fragment:
What is the result?
- A. 0
- B. 1
- C. The program prints nothing.
- D. 2
Answer: B
NEW QUESTION # 111
Given that these files exist and are accessible:
and given the code fragment:
Which code fragment can be inserted at line n1 to enable the code to print only /company/emp?
- A. Stream<Path> stream = Files.find(Paths.get ("/company"), 1,(p,b) -> b.isDirectory (),
FileVisitOption.FOLLOW_LINKS); - B. Stream<Path> stream = Files.list (Paths.get ("/company/emp"));
- C. Stream<Path> stream = Files.walk (Paths.get ("/company"));
- D. Stream<Path> stream = Files.list (Paths.get ("/company"));
Answer: A
NEW QUESTION # 112
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. Hello : Jim Hello : John Hello : Jeff
- B. Jim John Jeff
- C. The program prints nothing.
- D. A compilation error occurs.
Answer: C
NEW QUESTION # 113
Given the code fragment:
Path source = Paths.get ("/data/december/log.txt");
Path destination = Paths.get("/data");
Files.copy (source, destination);
and assuming that the file /data/december/log.txtis accessible and contains:
10-Dec-2014 - Executed successfully
What is the result?
- A. The program executes successfully and does NOT change the file system.
- B. A file with the name log.txtis created in the /datadirectory and the content of the /data/
december/log.txtfile is copied to it. - C. A FileAlreadyExistsExceptionis thrown at run time.
- D. A FileNotFoundExceptionis thrown at run time.
Answer: C
NEW QUESTION # 114
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