Oracle Exam 1Z0-809 Topic 19 Question 48 Discussion

Given:

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;

}

}

and the code fragment:

Book b1 = new Book (101, ''Java Programing'');

Book b2 = new Book (102, ''Java Programing'');

System.out.println (b1.equals(b2)); //line n2

Which statement is true?