public class TestEquality2
{
    public static void main(String[] args)
    {
        Employee emp1 = new Employee("Martinez", "Anthony");
        Employee emp2 = new Employee("Martinez", "Anthony");
        if (emp1.equals(emp2))                             
            System.out.println("These employees are the same.");
        else
            System.out.println("These are different employees.");
    }
}

class Employee                                           
{
    private String lastName;
    private String firstName;

    public Employee(String lastName, String firstName)
    {
        this.lastName = lastName;
        this.firstName = firstName;
    }

    public String getLastName()
    {
        return this.lastName;
    }

    public String getFirstName()
    {
        return this.firstName;
    }

    public boolean equals(Object obj)                  
    {
        // an object must equal itself
        if (this == obj)                                   
            return true;

        // no object equals null
        if (this == null)                                  
            return false;

        // objects of different types are never equal
        if (this.getClass() != obj.getClass())             
            return false;

        // cast to an Employee, then compare the fields
        Employee emp = (Employee) obj;                     
        return this.lastName.equals(emp.getLastName()) && this.firstName.equals(emp.getFirstName());
      }
}