sharepoint get lookup value programmatically

Here is the C# code to get the Lookup field value:

SPList list = web.Lists["Tasks"]; SPListItem existingBranch = list.Items[0]; SPFieldLookupValue group = new SPFieldLookupValue(existingBranch["Food Coupons"].ToString()); string lookedUpItemTitle = group.LookupValue;

Here is the C# code to Set the Lookup field value:

SPList list = web.Lists["Tasks"];

SPListItem newBranch = list.Items.Add();

newBranch["Title"] = "New lookup";

SPFieldLookupValue newValue = new SPFieldLookupValue(14, "Test");

newBranch["Sample"] = newValue;

newBranch.Update();