8.12 Static variable used to maintain a count of the number

// Fig. 8.12: Employee.java
// Static variable used to maintain a count of the number of
// Employee objects in memory.

public class Employee
{
    private String firstName;
    private String lastName;
    private static int count = 0; // number of Employees created

    // initialize Employee, add 1 to static count and
    // output String indicating that constructor was called
    public Employee( String first, String last )
    {
        firstName = first;
        lastName = last;

        ++count; // increment static count of employees
        System.out.printf( "Employee constructor: %s %s; count = %d\n",
            firstName, lastName, count );
    } // end Employee constructor

    // get first name
    public String getFirstName()
    {
        return firstName;
    } // end method getFirstName

    // get last name
    public String getLastName()
    {
        return lastName;
    } // end method getLastName

    // static method to get static count value
    public static int getCount()
    {
        return count;
    } // end method getCount
} // end class Employee