using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace Iterators
{
    public static class ForeachExamples
    {
        public static void ExampleOne()
        {
            var collection = new List<string>
            {
                "Hello",
                "World",
                "Iterators",
                "are",
                "awesome"
            };
            foreach (var item in collection)
            {
                Console.WriteLine(item.ToString());
            }
        }
    }
}

import java.util.Scanner;  
public class DiamondCharacterPattern  {  
	public static void main(String[] args)   {  
		char[] alphabet = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z' };  
		int alphabet _number = 0;  
		String[] diamond = new String[26]; // array of strings  
		System.out.print("Enter a Character between A to Z : ");  
		Scanner reader = new Scanner(System.in);  
		try {  
			char user_ alphabet = reader.next("[A-Z]").charAt(0);  
			// search for letter number in the array letter  
			for (int i = 0; i < alphabet.length; i++)  {  
				if (letter[i] == user_ alphabet) {  
					alphabet _number = i;  
					break;  
				}  
			}  
			//construct diamond  
			for (int i = 0; i <= alphabet _number; i++) {  
				diamond[i] = "";  
				//add initial spaces  
				for (int j = 0; j < alphabet _number - i; j++) {  
					diamond[i] += " ";  
				}  
				// add alphabet  
				diamond[i] += alphabet  
				//add space between letters  
				if (alphabet[i] != 'A') {  
					for (int j = 0; j < 2 * i - 1; j++) {   
						diamond[i] += " ";   	
					}   
					// add alphabet  
					diamond[i] += alphabet[i];   
				}   
				// Draw the first part of the diamond   
				System.out.println(diamond[i]);   
			}   
			for (int i = alphabet _number - 1; i >= 0; i--) {  
				// Draw the second part of the diamond  
				// prints the diamondArray in the reverse order  
				System.out.println(diamond[i]);  
			}  
		}  
		catch (Exception e) {  
			e.printStackTrace();  
		}  
		finally {  
			reader.close();  
		}  
	}  
}

<?php
// PHP program to prepend a string 
  
  
// Function to prepend a string 
function prepend_string ($str1, $str2){
      
    // Using concatenation operator (.)
    $res = $str1 . $str2;
      
    // Returning the result 
    return $res;
    }
  
// Given string
$str1 = "Geeksforgeeks"; 
$str2 = "Example"; 
  
// Function Call
$str = prepend_string ($str1, $str2); 
  
// Printing the result
echo $str; 
?>