public CategoryDA() { categories = new List <Category>(); Category sport = new Category("ورزشی"); Category art = new Category("هنری"); Category funny = new Category("تفریحی"); CategoryDA.AddCategory(sport); CategoryDA.AddCategory(art); CategoryDA.AddCategory(funny); Activity football = new Activity("footbal", "footbal", 1, 2, 3, 4); Activity basketball = new Activity("basketball", "basketball", 5, 4, 3, 2); sport.AddActivity(football); sport.AddActivity(basketball); Activity painting = new Activity("painting", "painting", 2, 2, 2, 2); Activity music = new Activity("music", "music", 1, 1, 1, 1); art.AddActivity(painting); art.AddActivity(music); SuggestedActivity dance = new SuggestedActivity("gaming", "gaming", 1, 2, 3, 5); funny.AddSuggestedActivity(dance); SuggestedActivity biking = new SuggestedActivity("biking", "biking", 4, 3, 2, 5); SuggestedActivity baseball = new SuggestedActivity("baseball", "baseball", 2, 3, 4, 1); sport.AddSuggestedActivity(biking); sport.AddSuggestedActivity(baseball); }