继承实例

//重点理解：父类对象由子类实例化即可
class Person {							//创建父类Person
	public void talk() {					
		System.out.println("Person.talk()");
	}
	public void foot() {					
		System.out.println("Person.foot");
	}
}

class Woman extends Person {				
	
	public void talk() {
		System.out.println("Woman.talk()");
	}
	public void baby() {
		System.out.println("Woman.baby()");
	}
}
public class Override {
	public static void main(String[] args) {
		Person person = new Woman();	//父类对象由子类实例化
		person.foot();
		person.talk();				
		
		Person p = new Person();
		p.talk();
	}
}

结果为：
Person.foot
Woman.talk()
Person.talk()