要将元素添加到HashSet中,代码如下-
using System; using System.Collections.Generic; public class Demo { public static void Main(String[] args){ HashSet<string> set1 = new HashSet<string>(); set1.Add("A"); set1.Add("B"); set1.Add("C"); set1.Add("D"); set1.Add("E"); set1.Add("F"); set1.Add("G"); set1.Add("H"); Console.WriteLine("Elements in HashSet1..."); foreach (string res in set1){ Console.WriteLine(res); } HashSet<string> set2 = new HashSet<string>(); set2.Add("John"); set2.Add("Jacob"); set2.Add("Ryan"); set2.Add("Tom"); set2.Add("Andy"); set2.Add("Tim"); set2.Add("Steve"); set2.Add("Mark"); Console.WriteLine("Elements in HashSet2... (Enumerator iterating through HashSet)"); HashSet<string>.Enumerator demoEnum = set2.GetEnumerator(); while (demoEnum.MoveNext()) { string res = demoEnum.Current; Console.WriteLine(res); } Console.WriteLine("Is HashSet1 equal to HashSet2? = "+set1.Equals(set2)); } }
输出结果
这将产生以下输出-
Elements in HashSet1... A B C D E F G H Elements in HashSet2... (Enumerator iterating through HashSet) John Jacob Ryan Tom Andy Tim Steve Mark Is HashSet1 equal to HashSet2? = False Count of HashSet2 = 8 Count of HashSet2 (updated) = 0
现在让我们来看另一个示例-
using System; using System.Collections.Generic; public class Demo { public static void Main(String[] args){ HashSet<int> set1 = new HashSet<int>(); set1.Add(100); set1.Add(200); Console.WriteLine("Elements in HashSet1..."); foreach (int res in set1){ Console.WriteLine(res); } HashSet<int> set2 = new HashSet<int>(); set2.Add(100); set2.Add(200); Console.WriteLine("Elements in HashSet2..."); foreach (int res in set2){ Console.WriteLine(res); } Console.WriteLine("Is set1 a subset of set2? "+set1.IsSubsetOf(set2)); } }
输出结果
这将产生以下输出-
Elements in HashSet1... 100 200 Elements in HashSet2... 100 200 Is set1 a subset of set2? True