public interface PrealertConstants {

enum platformCodeEnum{

CAINIAO(1),

CLOSED(-5),

OFFLINE(2);

private int code;

private platformCodeEnum(Integer code)

{

this.code=code;

}

public int getCode(){

return code;

}

}

}

===========

調用：

if(PrealertConstants.platformCode_TaoBao.toString().equals(source))

{

platCode=platformCodeEnum.CAINIAO;

}

else

{

platcode=PrealertConstants.platformCodeEnum.valueof(source);

}

java 枚舉的寫法