java枚举

public static void main(String[] args) {
    // 根据类型获取描述
    String desc = CarTypeEnum.getValue(1);
    System.out.println("根据类型获取描述：" + desc);//宝马
    // 根据描述获取类型
    int type = CarTypeEnum.getType("奥迪");
    System.out.println("根据描述获取类型：" + type);//3
}

/**
 * @Classname CarTypeEnum
 * @Description 汽车类型枚举
 * @Author lw
 * @Date 2020-01-08 11:32
 */
public enum CarTypeEnum {

    CAR_TYPE_BMW(1, "宝马"),
            CAR_TYPE_BC(2, "奔驰"),
            CAR_TYPE_AUDI(3, "奥迪");

    private int type;

    private String desc;

    private CarTypeEnum(int type, String desc) {
        this.type = type;
        this.desc = desc;
    }

    public static String getValue(int type) {
        CarTypeEnum[] carTypeEnums = values();
        for (CarTypeEnum carTypeEnum : carTypeEnums) {
            if (carTypeEnum.type()==type) {
                return carTypeEnum.desc();
            }
        }
        return null;
    }

    public static int getType(String desc) {
        CarTypeEnum[] carTypeEnums = values();
        for (CarTypeEnum carTypeEnum : carTypeEnums) {
            if (carTypeEnum.desc().equals(desc)) {
                return carTypeEnum.type();
            }
        }
        return Integer.parseInt(null);
    }

    private int type() {
        return this.type;
    }

    private String desc() {
        return this.desc;
    }
}