student.java

来自「JAVA培训用实用代码」· Java 代码 · 共 20 行

class Person {
	private String name;
	private int age;

	public Person(String name, int age) {
		this.name = name;
		this.age = age;
	}
}

public class Student extends Person {
 	private String school;
 	public Student(String name, int age, String s) {
		super(name, age);
		school = s;
 	}
	public Student(String s) { // 编译出错: no super()	  	
		school = s;
 	}
}