import java.util.*;public class CountClass {    private static int N=0;    CountClass(){        N++;    }    public void print() {        System.out.println("已经创建了"+N+"个对象");    }            public static void main(String[] args) {        int n,i;        CountClass  A=new CountClass();        CountClass  B=new CountClass();        CountClass  C=new CountClass();        CountClass  D=new CountClass();        D.print();        A.print();    }}