Given the code fragments:

class ThreadRunner implements Runnable {

public void run () { System.out.print (“Runnable”) ; }

}

class ThreadCaller implements Callable {

Public String call () throws Exception {return “Callable”; )

}

and

ExecutorService es = Executors.newCachedThreadPool ();

Runnable r1 = new ThreadRunner ();

Callable c1 = new ThreadCaller ();

// line n1

es.shutdown();

Which code fragment can be inserted at line n1 to start r1 and c1 threads?

Given the code fragment:

What is the result?

Given:

class FuelNotAvailException extends Exception { }

class Vehicle {

void ride() throws FuelNotAvailException {//line n1

System.out.println(“Happy Journey!”);

}

}

class SolarVehicle extends Vehicle {

public void ride () throws Exception {//line n2

super ride ();

}

}

and the code fragment:

public static void main (String[] args) throws FuelNotAvailException, Exception {

Vehicle v = new SolarVehicle ();

v.ride();

}

Which modification enables the code fragment to print Happy Journey!?

Which statement is true about the single abstract method of the java.util.function.Function interface?

Given the code fragment:

What is the result?

Given the code fragment:

Which modification enables the code to print Price 5 New Price 4?

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);

What is the result?