/**
 * CSE 373, Spring 2011, Jessica Miller
 * This class represents information about an employee.  We used this class to 
 * see that if we only override Object's equals method, HashSet does not work 
 * as expected for instances of Employee that have the same value for fields.
 * We then overrode the hashCode method according to the guidelines discussed
 * in class.  This ensured HashSet did not insert two instances of Employee 
 * that were duplicates (i.e. had the fields with the exact same values).
 */
public class Employee {
	private String name;
	private int salary;
	private int deptID;

	public Employee(String name, int salary, int deptID) {
		this.name = name;
		this.salary = salary;
		this.deptID = deptID;
	}
	
    public boolean equals(Object o) { 
        if (o == this) { 
        	return true; 
        }
        
        if (!(o instanceof Employee)) { 
        	return false;  
        }
        
        Employee e = (Employee)o; 
        return (name.equals(e.name)) && (salary == e.salary) && (deptID == e.deptID);
    }
    
    public int hashCode() {
        int result = 17;
        result = 37 * result + this.name.hashCode();
        result = 37 * result + this.salary;
        return 37 * result + this.deptID;
    }
}