teacher.java

新东方的

public class Teacher extends Person
{
	private String department;
	public void setDepartment(String dept)
	{
		department = dept;
	}
	public String getDepartment()
	{
		return department;
	}
	
	//方法覆盖
	public String showName()
	{
		//return name+"老师";
		return super.showName()+"老师";
	}
	
	//测试
	public static void main(String[] args)
	{
		Teacher t = new Teacher();
		t.setName("Alex");
		System.out.println(t.showName());
		
	}	
}