testabstract.java

这是一张java应用教程的随书光盘

abstract class Person{   
	abstract void homeplace(String home );
	public void age(int age ){
		System.out.println("This person's age is  "+age);
	}
}
class Student extends Person{
	void homeplace(String home ){
		System.out.println("This person's homeplace is  "+home);	}
}
class Test{
	public static void main( String args[ ] ){
		Student Bob = new Student ( );
		Bob.homeplace("BeiJing City");
		Bob.age(23);
	}
}