C#

public abstract class LookupBuilderBase<T> where T : class, IEntity, new()
{
    protected SQLiteAsyncConnection AsyncConnection;
    protected IDictionary<string, string> LookupData;
    protected IRepository<T> Repository;
    protected readonly IList<T> Data = new List<T>();

    protected LookupBuilderBase(SQLiteAsyncConnection conn, IDictionary<string, string> lookupData)
    {
        AsyncConnection = conn;
        LookupData = lookupData;
    }

    public async Task Execute()
    {
        CreateRepository();
        BuildData();
        await InsertData();
    }

    protected abstract void BuildData();

    protected virtual async Task InsertData()
    {
        foreach (var item in Data)
        {
            await Repository.Insert(item);
        }
    }

    private void CreateRepository()
    {
        Repository = new Repository<T>(AsyncConnection);
    }
}

public class CategoryBuilder : LookupBuilderBase<Category>
{
    public CategoryBuilder(SQLiteAsyncConnection conn, IDictionary<string, string> lookupData)
        : base(conn, lookupData)
    {
    }

    protected override void BuildData()
    {
        var values = LookupData.Where(x => x.Key.StartsWith("Category"));
        foreach (var keyValuePair in values)
        {
            Data.Add(new Category { Name = keyValuePair.Value });
        }
    }
}

int j = 0;
for (int i = 0; i < 5; i++)
    {
    Console.WriteLine(i);
    try
        {
        i = i / j;
        }
    catch (Exception ex)
        {
        Console.WriteLine(ex.Message);
        }
    }

0
Attempted to divide by zero.
1
Attempted to divide by zero.
2
Attempted to divide by zero.
3
Attempted to divide by zero.
4
Attempted to divide by zero.