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 products = Arrays.asList(new Product(1, 10), new Product (2, 30), new Product (2, 30)); 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 >

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?

Given the code fragment: public class Foo { public static void main (String [ ] args) { Map unsortMap = new HashMap< > ( ); unsortMap.put (10, “z”); unsortMap.put (5, “b”); unsortMap.put (1, “d”); unsortMap.put (7, “e”); unsortMap.put (50, “j”); Map treeMap = new TreeMap (new Comparator ( ) { @Override public int compare (Integer o1, Integer o2) {return o2.compareTo (o1); } } ); treeMap.putAll (unsortMap); for (Map.Entry entry : t

Given the structure of the Student table: Student (id INTEGER, name VARCHAR) Given the records from the STUDENT table: Given the code fragment: Assume that: 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?

Given the code fragment: BiFunction val = (t1, t2) -> t1 + t2; //line n1 System.out.println(val.apply(10, 10.5)); What is the result?

Which statement is true about the DriverManager class?

Which code fragment is required to load a JDBC 3.0 driver?

Given: Item table ? ID, INTEGER: PK ? DESCRIP, VARCHAR(100) ? PRICE, REAL ? QUANTITY< INTEGER And given the code fragment: 9. try { 10. Connection conn = DriveManager.getConnection(dbURL, username, password); 11. String query = “Select * FROM Item WHERE ID = 110”; 12. Statement stmt = conn.createStatement(); 13. ResultSet rs = stmt.executeQuery(query); 14. while(rs.next()) { 15. System.out.println(“ID: “ + rs.getInt(“Id”)); 16. System.out.println(“Description: “ + rs.getString(“Descrip”)); 17. System.out.pr

and the code fragment? What is the result?

Given: public class Customer { private String fName; private String lName; private static int count; public customer (String first, String last) {fName = first, lName = last; ++count;} static { count = 0; } public static int getCount() {return count; } } public class App { public static void main (String [] args) { Customer c1 = new Customer(“Larry”, “Smith”); Customer c2 = new Customer(“Pedro”, “Gonzales”); Customer c3 = new Customer(“Penny”, “Jones”); Customer c4 = new Customer(“Lars”, “Svenson”); c4 = nu

Given: and the command: java Product 0 What is the result?

Given the code fragments: public class Book implements Comparator { 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 Listbooks = 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); Wha

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 vehicles = new TreeSet <> (); vehicles.add(new Vehicle (10123, “Ford”)); vehicles.add(new Vehicle (10124, “BMW”)); System.out.println(vehicles); What is the result?

Given: Which two interfaces can you use to create lambda expressions? (Choose two.)

Which class definition compiles?