employee.java

关于多态方面练习的编程

/*
 * Employee.java
 *
 * Created on February 28, 2001, 1:11 PM
 */


/**
 *
 * @author  
 * @version 
 * An abstract class supplying common functionality to all Employee
 * subclasses
 *
 */
package Employee;

abstract public class Employee extends Object {
    public final static String
     DRIVER = "Driver",
     MANAGER = "Manager",
     SALESPERSON = "Salesperson",
     STAFF = "Staff",
     TEMPORARY = "Temporary",
	  HOURLY = "Hourly";
    public final static String [] EMP_TYPES = {
        DRIVER,
        MANAGER,
        SALESPERSON,
        STAFF,
        TEMPORARY,
	    HOURLY,

    };
    
    private String empName, empID, empType;
    
    /** Creates new Employee */
    public Employee(String type, String name, String taxID) 
	{
		this.empName=name;
		this.empType=type;
		this.empID=taxID;
    }
    
    abstract public double earnings();
    
    public String getEmpType(){
       return this.empType;
    }
    
    public String getName(){
        return this.empName;
    }
    
    public String getID(){
        return this.empID;
    }
    
    public boolean equals(String id){
        return this.empID==id;
    }
    
    public String toString( ){
        return this.empType + "," + this.empName + "," + this.empID;
    }       
}