public class Main {
public static void main(String[] args) {
// TODO: 给Person类增加一个静态字段count和静态方法getCount,统计实例的个数
Person p1 = new Person("小明");
System.out.println(Person.getCount()); // 1
Person p2 = new Person("小红");
System.out.println(Person.getCount()); // 2
Person p3 = new Person("小军");
System.out.println(Person.getCount()); // 3
}
}
class Person {
public static int count;
String name;
public static int getCount() {
return ++count;
}
public Person(String name) {
this.name = name;
}
}
韬韬蒙塔基