vehicle.java

接着上次传入一些Java学习中的实验

public class Vehicle{   						//定义一个类， 
	private Engine theEngine;					//私有对象类
	public Engine getEngine(){return theEngine;}//定义一个方法，公有方法，
	
}
public class Manager extends Employee{			//继承一个类，在子类中扩展一些变量，或成员方法。	
	public String department="";
	public employee[]staff=new Employee[20];
	public int staffSize=0;
	
	public void addStaff(Employee e){
		staff[staffSize++]=e;
		}
		public int getStaff(int i){return staff[i];
		}
    public static void main(String args[])
     {
     	 Manager manager1=new Manager();
     	 manager1.addStaff(manager1);
     	 manager1.staffSize=20;
     	 manager1.department="USTC";
     	 manager1.getStaff(3);
     	 System.out.prnintln("department="+department);
     	 System.out.println("staffSize="+staffSize);
     }

}