Question 3: Consider the following Java code. Identify the first asse…

1class User {
2    private String username;
3    private String password;
4    public User(String u, String p) {
5        assert u != null;               // assert-1
6        assert p != null;               // assert-2
7        username = u;
8        password = p;
9    }
10    public boolean login() {
11        assert !username.isEmpty();            // assert-3
12        assert password.length() >= 6;         // assert-4
13        return username.equals("admin") && password.equals("admin123");
14    }
15}
16public class AssertTest {
17    public static void main(String[] args) {
18        User user = new User("admin", "");
19        System.out.println("Login status: " + user.login());
20    }
21}