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: