JAVA中定义常量的3种方式

 //未处理
public static final int PROCESS_STATUS_UNTREATED = 0;
//已接收
public static final int PROCESS_STATUS_ACCPECTED = 1;
//已处理
public static final int PROCESS_STATUS_PROCESSED = 2;

public static final class PROCESS_STATUS{
        //未处理
        public static final int UNTREATED = 0;
        //已接收
        public static final int ACCPECTED = 1;
        //已处理
        public static final int PROCESSED = 2;
}

public static enum PROCESS_STATUS implements KeyValueEnum{
        UNTREATED(0,"未处理"),
        ACCPECTED(1,"已接收"),
        PROCESSED(2,"已处理");
        private Integer code;
        private String desc;
        private PROCESS_STATUS(Integer key , String value){
            this.code = key;
            this.desc = value;
        }
        @Override
        public Integer getCode() {
            return code;
        }

        @Override
        public String getDesc() {
            return desc;
        }   
    }

//获取编码
PROCESS_STATUS.UNTREATED.getCode();
//获取描述
PROCESS_STATUS.UNTREATED.getDes();