Given the code fragments: class Person // line n1 { String name; Person(String name) { this.name = name; } } // line n2 and List emps = new ArrayList(); // code that adds objects of the Person class to the emps list goes here */ Collections.sort(emps); Which two modifications enable to sort the elements of the emps list? (Choose two.)

Question

Given the code fragments: class Person // line n1 { String name; Person(String name) { this.name = name; } } // line n2 and List emps = new ArrayList<>(); // code that adds objects of the Person class to the emps list goes here */ Collections.sort(emps); Which two modifications enable to sort the elements of the emps list? (Choose two.)

Accepted Answer

B. At line n2 insert
 public int compareTo (Person p) {
 return this.name.compareTo (p.name);
 } C. Replace line n1 with
 class Person implements Comparable<Person>

Answer

A. Replace line n1 with
 class Person extends Comparator<Person>

Answer

D. At line n2 insert
 public int compare (Person p1, Person p2) {
 return p1.name.compareTo (p2.name);
 }

Answer

E. At line n2 insert
 public int compareTo (Person p, Person p2) {
 return p1.name.compareTo (p2.name);
 }

Answer

F. Replace line n1 with
 class Person implements Comparator<Person>

Given the code fragments: class Person // line n1 { String name; Person(String name) { this.name = name; } } // line n2 and List<Person> emps = new ArrayList<>(); // code that adds objects of the…

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