java單例，枚舉實現方式

publicenum SingletonEnum{    INSTANCE01,INSTANCE02;    private String name;    publicString getName()    {       returnname;    }     publicvoid setName(String name)    {       this.name = name;    } }測試public class Test{    public static void main(String[] args)    {        SingletonEnum instance01=SingletonEnum.INSTANCE01;        instance01.setName("terje");        System.out.println(instance01.getName());               SingletonEnum instance02=SingletonEnum.INSTANCE01;        System.out.println(instance02.getName());               SingletonEnum instance03=SingletonEnum.INSTANCE02;        instance03.setName("liu");        System.out.println(instance03.getName());               SingletonEnum instance04=SingletonEnum.INSTANCE02;        instance04.setName("liu");        System.out.println(instance04.getName());    }}輸出：terjeterjeliuliu