package 類的靜態欄位; public class 統計物件個數 {
     static class Employee
 {
      static int num;
    public Employee(){
    num = num + 1;
   
   }
    int sum1() {
     return num;
    }
  
 }
  
    public static void main(String []args) {
      Employee A = new Employee();
      Employee B = new Employee();
      Employee C = new Employee();
      Employee D = new Employee();
      Employee E = new Employee();
      Employee F = new Employee();
      System.out.println("你已建立"+Employee.num+"個物件");
  
    }
 }