Given the code fragments:

and

What is the result?

Given:
public class Foo<K, V> {
private K key;
private V value;
public Foo (K key, V value) (this.key = key; this value = value;)
public static <T> Foo<T, T> twice (T value) (return new Foo<T, T> (value, value); )
public K getKey () (return key;)
public V getValue () (return value;)
}
Which option fails?

Assume customers.txtis accessible and contains multiple lines.
Which code fragment prints the contents of the customers.txtfile?
Stream<String> stream = Files.find (Paths.get ("customers.txt"));

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 passWordexists The Employeetable has a column ID of type integer and the SQL query matches one record.
What is the result?

Given:
1 . abstract class Shape {
2 . Shape ( ) { System.out.println ("Shape"); }
3 . protected void area ( ) { System.out.println ("Shape"); }
4 . }
5 .
6 . class Square extends Shape {
7 . int side;
8 . Square int side {
9 . /* insert code here */
1 0. this.side = side;
1 1. }
1 2. public void area ( ) { System.out.println ("Square"); }
1 3. }
1 4. class Rectangle extends Square {
1 5. int len, br;
1 6. Rectangle (int x, int y) {
1 7. /* insert code here */
1 8. len = x, br = y;
1 9. }
2 0. void area ( ) { System.out.println ("Rectangle"); }
2 1. }
Which two modifications enable the code to compile?