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NEW QUESTION # 125
Given the structure of the EHF and DEPT tables:
Given the code fragment:
What is the result?
- A. The code prints only the first record of the EM? table.
- B. The code throws a syntax error at ResultSet because the semicolon (:) is missing.
- C. The code prints all of the records in the EMP table along with the respective department names.
- D. The code prints all of the records in the EM? table but not with the respective department names.
Answer: D
NEW QUESTION # 126
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 -ea option?
- A. A compilation error occurs.
- B. 0
- C. An AssertionError is thrown.
- D. 1
Answer: D
NEW QUESTION # 127
Given the records from the Employee table:
and given the code fragment:
try {
Connection conn = DriverManager.getConnection (URL, userName,
passWord);
Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_UPDATABLE);
st.execute("SELECT*FROM Employee");
ResultSet rs = st.getResultSet();
while (rs.next()) {
if (rs.getInt(1) ==112) {
rs.updateString(2, "Jack");
}
}
rs.absolute(2);
System.out.println(rs.getInt(1) + " " + rs.getString(2));
} catch (SQLException ex) {
System.out.println("Exception is raised");
}
Assume that:
- The required database driver is configured in the classpath.
- The appropriate database accessible with the URL, userName, and
passWord exists.
What is the result?
- A. The program prints Exception is raised.
- B. The Employee table is updated with the row:
112 Jack
and the program prints:
112 Jerry - C. The Employee table is not updated and the program prints:
112 Jerry - D. The Employee table is updated with the row:
112 Jack
and the program prints:
112 Jack
Answer: C
NEW QUESTION # 128
Given the code fragment:
Path file = Paths.get ("courses.txt");
// line n1
Assume the courses.txtis accessible.
Which code fragment can be inserted at line n1to enable the code to print the content of the courses.txtfile?
- A. List<String> fc = readAllLines(file);
fc.stream().forEach (s - > System.out.println(s)); - B. Stream<String> fc = Files.readAllLines (file);
fc.forEach (s - > System.out.println(s)); - C. List<String> fc = Files.list(file);
fc.stream().forEach (s - > System.out.println(s)); - D. Stream<String> fc = Files.lines (file);
fc.forEach (s - > System.out.println(s));
Answer: B
NEW QUESTION # 129
Given:
and the code fragment:
What is the result?
- A. A compilation error occurs.
- B. 1500.0
- C. 0.0
- D. 2000.0
Answer: B
NEW QUESTION # 130
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.out.println ("Impossible fuel");
- B. assert fuelLevel > 0: "Impossible fuel" ;
- C. assert (fuelLevel) : "Terminating...";
- D. assert fuelLevel < 0: System.exit(0);
Answer: D
NEW QUESTION # 131
Given:
Which option fails?
- A. Foo<String, String> pair = Foo.<String>twice ("Hello World!");
- B. Foo<String, String> grade = new Foo <> ("John", "A");
- C. Foo<String, Integer> mark = new Foo<String, Integer> ("Steve", 100);
- D. Foo<Object, Object> percentage = new Foo<String, Integer>("Steve", 100);
Answer: C
NEW QUESTION # 132
Given the code fragments:
public class Book implements Comparator<Book> {
String name;
double price;
public Book () {}
public Book(String name, double price) {
this.name = name;
this.price = price;
}
public int compare(Book b1, Book b2) {
return b1.name.compareTo(b2.name);
}
public String toString() {
return name + ":" + price;
}
}
and
List<Book>books = Arrays.asList (new Book ("Beginning with Java", 2), new book ("A
Guide to Java Tour", 3));
Collections.sort(books, new Book());
System.out.print(books);
What is the result?
- A. [A Guide to Java Tour:3.0, Beginning with Java:2.0]
- B. A compilation error occurs because the Book class does not override the abstract method compareTo().
- C. [Beginning with Java:2, A Guide to Java Tour:3]
- D. An Exception is thrown at run time.
Answer: A
NEW QUESTION # 133
Given the code fragment:
Which modification enables the code to print Price 5 New Price 4?
- A. Replace line n2with .map (n -> System.out.println ("New Price" + n -1))and
remove line n3 - B. Replace line n1with .forEach (e -> System.out.print ("Price" + e))
- C. Replace line n2 with .mapToInt (n -> n - 1);
- D. Replace line n3with .forEach (n -> System.out.println ("New Price" + n));
Answer: D
NEW QUESTION # 134
Given the code fragment:
What is the result?
- A. null
- B. [Java, J2EE, J2ME, JSTL]
- C. A compilation error occurs.
- D. [Java, J2EE, J2ME, JSTL, JSP]
Answer: C
NEW QUESTION # 135
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();currentLocale.setLanguage ("de");currentLocale.setRegion ("DE");
- B. currentLocale = new Locale.Builder ().setLanguage ("de").setRegion ("DE").build();
- C. currentLocale = Locale.GERMAN;
- D. currentLocale = Locale.getInstance(Locale.GERMAN,Locale.GERMANY);
- E. currentLocale = new Locale ("de", "DE");
Answer: A,B
NEW QUESTION # 136
Given the code fragment:
public static void main (String[] args) throws IOException {
BufferedReader brCopy = null;
try (BufferedReader br = new BufferedReader (new FileReader("employee.txt")))
{ //
line n1
br.lines().forEach(c -> System.out.println(c));
brCopy = br; //line n2
}
brCopy.ready(); //line n3;
}
Assume that the ready method of the BufferedReader, when called on a closed BufferedReader, throws an exception, and employee.txt is accessible and contains valid text.
What is the result?
- A. A compilation error occurs at line n3.
- B. A compilation error occurs at line n2.
- C. The code prints the content of the employee.txt file and throws an exception at line n3.
- D. A compilation error occurs at line n1.
Answer: C
NEW QUESTION # 137
Given:
public class Product {
int id; int price;
public Product (int id, int price) {
this.id = id;
this.price = price;
}
Public String toString () { return id + ":" + price;)
}
and the code fragment:
List<Product> products = new ArrayList <> (Arrays.asList(new Product(1, 10), new Product (2, 30), new Product (3, 20)); Product p = products.stream().reduce(new Product (4, 0), (p1, p2) -> { p1.price+=p2.price; return new Product (p1.id, p1.price);}); products.add(p); products.stream().parallel()
.reduce((p1, p2) - > p1.price > p2.price ? p1 : p2)
.ifPresent(System.out: :println);
What is the result?
- A. The program prints nothing
- B. 2:30
- C. 4:60
- D. 4:602:303:201:10
- E. 4:0
Answer: D
NEW QUESTION # 138
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);
- A. {EUROPE = [Germany], EUROPE = [Italy], ASIA = [Japan]}
- B. {ASIA = [Japan], EUROPE = [Italy, Germany]}
- C. {EUROPE = [Germany, Italy], ASIA = [Japan]}
- D. {EUROPE = [Italy, Germany], ASIA = [Japan]}
Answer: B
NEW QUESTION # 139
Given the code fragments:
public class Book implements Comparator<Book> {
String name;
double price;
public Book () {}
public Book(String name, double price) {
this.name = name;
this.price = price;
}
public int compare(Book b1, Book b2) {
return b1.name.compareTo(b2.name);
}
public String toString() {
return name + ":" + price;
}
}
and
List<Book>books = Arrays.asList (new Book ("Beginning with Java", 2), new book ("A Guide to Java Tour", 3)); Collections.sort(books, new Book()); System.out.print(books); What is the result?
[A Guide to Java Tour:3.0, Beginning with Java:2.0]
- A. [Beginning with Java:2, A Guide to Java Tour:3]
- B. A compilation error occurs because the Book class does not override the abstract method compareTo().
- C. An Exceptionis thrown at run time.
- D.
Answer: A
NEW QUESTION # 140
......
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