objectdemo3.java

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public class ObjectDemo3 
{
	//定义静态方法
	public ObjectDemo3()
	{
		//声明并创建Employee类对象e
		Employee e = new Employee("Wang Xiao Yue",3000.00,"2005/05/20");
		
		//声明并创建Student类对象s
		Student s = new Student();
		
		//获取两个对象所属的类名并输出
		String name1 = e.getClass().getName();
		String name2 = s.getClass().getName();
		System.out.println("e---"+name1);
		System.out.println("s---"+name2);
		
		//使用instanceof运算符判断
		boolean bool1 = e instanceof Employee;
		boolean bool2 = s instanceof Student;
		boolean bool3 = e instanceof Object;
		System.out.println("e instanceof Employee:"+bool1);
		System.out.println("s instanceof Student:"+bool2);
		System.out.println("e instanceof Object:"+bool3);
	}
	
	public static void main(String[] args) 
	{
		new ObjectDemo3();
	}
}

class Employee          //自定义雇员类
{
	private String name;        //雇员姓名
	private double salary;      //雇员薪水
	private String hireDay;		//雇员入职时间
	
	//含有参数的构造方法
	public Employee(String name,double salary,String hireDay)
	{
		this.name = name;
		this.salary = salary;
		this.hireDay = hireDay;
	}
	
	//用于获取雇员信息的方法
	public String getName()
	{ return name; }
	public double getSalary()
	{ return salary; }
	public String getHireDay()
	{ return hireDay; }
}

class Student                //自定义学生类
{
	private int id;          //学号
	private String name;     //姓名
	private String gender;   //性别

	//用于获取学生信息的方法
	public int getID()       	
	{ return id; }
	public String getName()  	
	{ return name; }
	public String getGender ()    
	{ return gender; }

}