how to list name dynamically in a web part in sharepoint2013

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ASP.NET

SharePoint2013

i am using the below mentioned code to retrieve the column from the list called "Announcement"

it is working fine and giving me the desired result

but now i want to pass List name dynamically after deployment by user at run time instead of hard coded value of list name , so can any one help me altering this code :

public partial class ContentSliderUserControl : UserControl
{
   string Qry = " <where><geq><fieldref name="Expires" /><value includetimevalue="FALSE" type="DateTime">{0}</value></geq></where>";
   protected void Page_Load(object sender, EventArgs e)
   {
       if (!IsPostBack)
       {
           DisplayAnnouncements();
       }
   }


   private void DisplayAnnouncements()
   {
       SPSecurity.RunWithElevatedPrivileges(delegate()
         {
             using (SPSite site = new SPSite(SPContext.Current.Site.ID))
             {
                 using (SPWeb web = site.OpenWeb(SPContext.Current.Web.ID))
                 {
                     SPList list = web.Lists["Announcements"];
                     SPQuery query = new SPQuery();
                     query.RowLimit = 10;
                     query.Query = string.Format(Qry, DateTime.Now.ToString("yyyy-MM-dd"));
                     rep1.DataSource = list.GetItems(query).GetDataTable();
                     rep1.DataBind();
                 }
             }
         }
             );
   }