C# | Array.Find() Method Last Updated : 05 Jan, 2022 Comments Improve Suggest changes Like Article Like Report This method is used to search for an element that matches the conditions defined by the specified predicate and returns the first occurrence within the entire Array. Syntax: public static T Find (T[] array, Predicate<T> match); Here, T is the type of element of the array. Parameters: array: It is the one-dimensional, zero-based array to search. match: It is the predicate that defines the conditions of the element to search for. Return Value: This method return the first element that matches the conditions defined by the specified predicate if it is found. Otherwise, it returns the default value for type T. Exception: This method throws ArgumentNullException if the array is null or match is null. Below programs illustrate the use of Array.Find(T[], Predicate) Method: Example 1: CSharp // C# program to demonstrate // Array.Find(T[], Predicate<T>) // Method using System; using System.Collections.Generic; public class GFG { // Main Method public static void Main() { try { // Creating and initializing new the String String[] myArr = {"Sun", "Mon", "Tue", "Thu"}; // Display the values of the myArr. Console.WriteLine("Initial Array:"); // calling the PrintIndexAndValues() // method to print PrintIndexAndValues(myArr); // getting a element a with required // condition using method Find() string value = Array.Find(myArr, element => element.StartsWith("S", StringComparison.Ordinal)); // Display the value of // the found element. Console.Write("Element: "); // printing the string // following the condition Console.Write("{0}", value); } catch (ArgumentNullException e) { Console.Write("Exception Thrown: "); Console.Write("{0}", e.GetType(), e.Message); } } // Defining the method // PrintIndexAndValues public static void PrintIndexAndValues(String[] myArr) { for (int i = 0; i < myArr.Length; i++) { Console.WriteLine("{0}", myArr[i]); } Console.WriteLine(); } } Output: Initial Array: Sun Mon Tue Thu Element: Sun Example 2: CSharp // C# program to demonstrate // Array.Find(T[], Predicate<T>) // Method using System; using System.Collections.Generic; public class GFG { // Main Method public static void Main() { try { // Creating and initializing new // the String with the null value String[] myArr = null; // getting an element a with // required condition // using method Find() string value = Array.Find(myArr, element => element.StartsWith("S", StringComparison.Ordinal)); // Display the value of // the found element. Console.Write("Element: "); // printing the string // following the condition Console.Write("{0}", value); } catch (ArgumentNullException e) { Console.Write("Exception Thrown: "); Console.Write("{0}", e.GetType(), e.Message); } } // Defining the method // PrintIndexAndValues public static void PrintIndexAndValues(String[] myArr) { for (int i = 0; i < myArr.Length; i++) { Console.WriteLine("{0}", myArr[i]); } Console.WriteLine(); } } Output: Exception Thrown: System.ArgumentNullException Reference: https://docs.microsoft.com/en-us/dotnet/api/system.array.find?view=netframework-4.7.2 Comment More infoAdvertise with us Next Article C# | Array.Find() Method rohitprasad3 Follow Improve Article Tags : C# CSharp-method CSharp-Arrays Similar Reads C# | Array.FindAll() Method This method is used to retrieve all the elements that match the conditions defined by the specified predicate.Syntax: public static T[] FindAll (T[] array, Predicate match); Here, T is the type of element of the array.Parameters: array: It is the one-dimensional, zero-based array to search.match: It 3 min read C# | Array.FindLast() Method This method is used to search for an element that matches the conditions defined by the specified predicate and returns the last occurrence within the entire Array. 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