C# | Array.FindLast() Method Last Updated : 11 Jul, 2025 Summarize Comments Improve Suggest changes Share 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 last occurrence within the entire Array. Syntax: public static T FindLast<T> (T[] array, Predicate<T> match); 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 returns the last element that matches the conditions defined by the specified predicate if it is found otherwise 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.FindLast(T[], Predicate) Method: Example 1: CSHARP // C# program to demonstrate // Array.FindLast(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", "Son", "Tue", "Thu"}; // Display the values of the myArr. Console.WriteLine("Initial Array:"); // calling the PrintIndexAndValues() // method to print PrintIndexAndValues(myArr); // getting a last element with required // condition using method FindLast() string value = Array.FindLast(myArr, element => element.StartsWith("S", StringComparison.Ordinal)); // Display the value of // the found element. Console.Write("Last occurrence: "); // 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 Son Tue Thu Last occurrence: Son Example 2: CSHARP // C# program to demonstrate // Array.FindLast(T[], Predicate<T>) // Method using System; using System.Collections.Generic; public class GFG { // Main Method public static void Main() { try { // Creating and initializing // new Array String with null String[] myArr = null; // getting a last element with required // condition using method FindLast() string value = Array.FindLast(myArr, element => element.StartsWith("S", StringComparison.Ordinal)); // Display the value of // the found element. Console.Write("Last occurrence: "); // 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://learn.microsoft.com/en-us/dotnet/api/system.array.findlast?view=netframework-4.7.2 Comment More infoAdvertise with us Next Article Array.LastIndexOf Method in C# | Set - 1 R rohitprasad3 Follow Improve Article Tags : C# CSharp-method CSharp-Arrays Similar Reads Array.LastIndexOf Method in C# | Set - 1 Array.LastIndexOf method is used to find the last matching element in a one-dimensional array. It starts the search from the last element of an array. It returns the index of the element that contains the specified value. There are 6 methods in the overload list of this method as follows: LastIndexO 8 min read Array.LastIndexOf Method in C# | Set - 1 Array.LastIndexOf method is used to find the last matching element in a one-dimensional array. It starts the search from the last element of an array. It returns the index of the element that contains the specified value. There are 6 methods in the overload list of this method as follows: LastIndexO 8 min read Array.LastIndexOf Method in C# | Set – 2 Array.LastIndexOf method is used to find the index of the last occurrence of a value in a one-dimensional Array or in a portion of the Array. It starts the search from the last element of an array. It returns the index of the element that contains the specified value. There are 6 methods in the over 4 min read Array.LastIndexOf Method in C# | Set – 2 Array.LastIndexOf method is used to find the index of the last occurrence of a value in a one-dimensional Array or in a portion of the Array. It starts the search from the last element of an array. It returns the index of the element that contains the specified value. There are 6 methods in the over 4 min read C# | Array.LastIndexOf<T>(T[], T) Method Array.LastIndexOf<T>(T[], T) Method is used to search for the specified object. It returns the index of the last occurrence within the entire Array. Syntax: public static int LastIndexOf<T>(T[] array, T value); Parameters: array: It is a one-dimensional, zero-indexed array to search. val 2 min read C# | Array.LastIndexOf<T>(T[], T) Method Array.LastIndexOf<T>(T[], T) Method is used to search for the specified object. It returns the index of the last occurrence within the entire Array. Syntax: public static int LastIndexOf<T>(T[] array, T value); Parameters: array: It is a one-dimensional, zero-indexed array to search. val 2 min read Like