C＃の配列でforeachループを使用する

配列でforeachループを使用する例を見てみましょう-

例

using System;
public class Demo {
   public static void Main() {
      string[] products = new string[] { "Electronics", "Accessories", "Clothing", "Toys", "Clothing", "Furniture" };
      Console.WriteLine("Products list...");
      foreach(string s in products) {
         Console.WriteLine(s);
      }
      Console.WriteLine("Is the products Accessories in the array? = {0}", Array.Exists(products, ele => ele == "Accessories"));
      Console.WriteLine("Is the products Stationery in the array? = {0}", Array.Exists(products, ele => ele == "Stationery"));
      Console.WriteLine("\nOne or more products begin with the letter 'C'? = {0}", Array.Exists(products, ele => ele.StartsWith("C")));
      Console.WriteLine("One or more planets begin with 'D'? = {0}", Array.Exists(products, ele => ele.StartsWith("D")));
      Console.WriteLine("One or more products begin with the letter 'T'? = {0}", Array.Exists(products, ele => ele.StartsWith("T")));
      Console.WriteLine("One or more planets begin with 'E'? = {0}", Array.Exists(products, ele => ele.StartsWith("E")));
      Console.WriteLine("Is the array having fixed size? = " + products.IsFixedSize);
   }
}

出力

これにより、次の出力が生成されます-

Products list...
Electronics
Accessories
Clothing
Toys
Clothing
Furniture
Is the products Accessories in the array? = True
Is the products Stationery in the array? = False

One or more products begin with the letter 'C'? = True
One or more planets begin with 'D'? = False
One or more products begin with the letter 'T'? = True
One or more planets begin with 'E'? = True
Is the array having fixed size? = True

例

別の例を見てみましょう-

using System;
public class Demo {
   public static void Main() {
      String[] strArr1 = new String[3] { "John", "Jacob", "Tim"};
      String[] strArr2 = new String[3] { "Tom","Brad","Bradley"};
      Console.WriteLine("First String array...");
      foreach(string val in strArr1) {
         Console.WriteLine(val);
      }
      Console.WriteLine("Second String array...");
      foreach(string val in strArr2) {
         Console.WriteLine(val);
      }
      Console.WriteLine("Are both the array objects equal? = "+strArr1.Equals(strArr2));
   }
}

出力

これにより、次の出力が生成されます-

First String array...
John
Jacob
Tim
Second String array...
Tom
Brad
Bradley
Are both the array objects equal? = False