enumAccountType{
  SAVING, FIXED, CURRENT;
  privateAccountType(){
  System.out.println(“It is a account type”);
  }
}

classEnumOne{
    publicstaticvoidmain(String[]args){
    System.out.println(AccountType.FIXED);
  }
}

輸出結(jié)果：
It is a account type
It is a account type
It is a account type
FIXED
枚舉類(lèi) 所有的枚舉值都是類(lèi)靜態(tài)常量，在初始化時(shí)會(huì)對(duì)所有的枚舉值對(duì)象進(jìn)行第一次初始化。