子类中的this（）(执行子类中参数对应的构造方法)

最新推荐文章于 2025-06-06 09:24:58 发布

转载最新推荐文章于 2025-06-06 09:24:58 发布 · 894 阅读

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本文通过具体的Java代码示例，展示了面向对象编程的基本概念及其实现方式，包括类的定义、继承、方法重写等核心特性，并通过Person类和其子类Student的实际应用来加深理解。

private String location;
Person(String name){
this.name=name;
location="beijing";
}
Person(String name,String location){
this.name=name;
this.location=location;
}
public String info(){
return "name:"+name+ "location:"+location;

}
}
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 Test{
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","s1");
System.out.println(p1.info());
System.out.println(p2.info());
System.out.println(s1.info());
System.out.println(s2.info());
}
}