Enum demo

public enum ContactTypeEnum {

    CALL_CONNECTED("CallEstablish"," call establishment 、 transfer "),
    BE_CONSULT_CONNECTED("BeConsultEstablish"," Being consulted "),
    BE_CONFERENCED("BeConferenceEstablish"," By conference "),
    CONSULT_TRANSFER("ConsultTransfer"," Consult and transfer ");

    private String code;
    private String desc;

    ContactTypeEnum(String code, String desc) {
        this.code = code;
        this.desc = desc;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getDesc() {
        return desc;
    }

    public void setDesc(String desc) {
        this.desc = desc;
    }

    public static ContactTypeEnum getFromCode(String code){
        for (ContactTypeEnum type : ContactTypeEnum.values()){
            if (type.getCode() == code)
                return type;
        }
        return null;
    }
}