Exam 1z0-809 topic 1 question 182 discussion

Agree and tested

B is correct.

Totally FALSE, the equals() method just compare the id -> false -> B is correct

B, tested class Book { int id; String name; public Book (int id, String name) { this.id = id; this.name = name; } public boolean equals (Object obj) { //line n1 boolean output = false; Book b = (Book) obj; if (this.id == b.id) { output = true; } return output; } } public class Question182 { public static void main(String[] args) { Book b1 = new Book (101, "Java Programing"); Book b2 = new Book (102, "Java Programing"); System.out.println (b1.equals(b2)); //line n2 } }