class Person{
private String name;
private String location;
Person(String name) {
this.name = name; location = "BeiJing";
}
//方法的重载
Person (String name ,String location){
this.name = name; this.location = location;
}
public String info(){
return "name: " + name + " location: " + location;
}
}
class Teacher extends Person {
private String captial;
Teacher(String name, String captial){
this(name, "BeiJing", captial);
}
Teacher(String n, String l, String captial){
super(n,l);
this.captial = captial;
}
//重写
public String info(){
return super.info() + " captial: " + captial;
}
}
class Student extends Person {
private String school;
Student (String name, String school) {
this(name, "BeiJing", school);
}
Student (String n, String l, String school){
super (n,l);
this.school = school;
}
public String info(){
return super.info() + " school: " + school;
}
}
public class TestStudentAndTeacher {
public static void main (String []args){
Person p1 = new Person("A");
Person p2 = new Person("B","Shanghai");
Student s1 = new Student("C","s1");
Student s2 = new Student("C","Shanghai","s2");
Teacher t1 = new Teacher("C","profession");
System.out.println(p1.info());
System.out.println(p2.info());
System.out.println(s1.info());
System.out.println(s2.info());
System.out.println(t1.info());
}
}
原文：http://www.cnblogs.com/dingxiaoblog/p/4126804.html