java类的继承

java中类的继承

例： 以preson类为基类让student类继承 并添加参数；

class Person {
	String name;
	private int age;

	Person(String n, int a) {
		name = n;
		age = a;
	}

	public void print() {
		System.out.println("my name is" + name + ".");
	}
}

class Student extends Person {
	private float java, english;

	Student(String n, int a, float j, float e) {
		super(n, a);
		java = j;
		english = e;
	}

	void show() {
		System.out.println("java score is" + java + ".");
		System.out.println("english score is" + english + ".");
	}
}

public class Xuesheng {
	public static void main(String[] args) {
		Student s1 = new Student("tct1", 18, 67, 89);
		Person p1 = new Person("tct1", 18);
		s1.show();
		p1.print();

	}
}

运行效果：