जांचें कि क्या किसी सरणी में ऐसे तत्व हैं जो सी # में निर्दिष्ट शर्तों से मेल खाते हैं

यह जांचने के लिए कि क्या किसी सरणी में वे तत्व हैं जो विशिष्ट परिस्थितियों से मेल खाते हैं, हम C# में StartsWith() विधि का उपयोग कर सकते हैं -

उदाहरण

using System;
public class Demo {
   public static void Main(){
      string[] products = { "Electronics", "Accessories", "Clothing", "Toys", "Clothing", "Furniture" };
      Console.WriteLine("Products list...");
      foreach(string s in products){
         Console.WriteLine(s);
      }
      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")));
   }
}

आउटपुट

यह निम्नलिखित आउटपुट देगा -

Products list...
Electronics
Accessories
Clothing
Toys
Clothing
Furniture
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

उदाहरण

आइए एक और उदाहरण देखें -

using System;
public class Demo {
   public static void Main(){
      string[] products = { "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")));
   }
}

आउटपुट

यह निम्नलिखित आउटपुट देगा -

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