This question already has an answer here:
I am trying to get this code to pick out 4 keys at random, and then write them to the console using a 'foreach' loop. Instead of picking out a random selection for each iteration, it just picks one of the keys at random and writes it to the console 4 times. Here is the code:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
namespace ListPractice
{
public class DictionaryData
{
public static void GetRandomKey()
{
Dictionary<string, int[]> QandA_Dictionary = new Dictionary<string, int[]>();
QandA_Dictionary.Add("What is 1 + 1?", new int[] { 1, 2, 3, 4 });
QandA_Dictionary.Add("What is 1 + 2?", new int[] { 1, 2, 3, 4 });
QandA_Dictionary.Add("What is 1 + 3?", new int[] { 1, 2, 3, 4 });
QandA_Dictionary.Add("What is 1 + 4?", new int[] { 2, 3, 4, 5 });
List<string> keys = new List<string>(QandA_Dictionary.Keys);
foreach (var element in keys)
{
Random rand = new Random();
string randomKey = keys[rand.Next(keys.Count)];
Console.WriteLine(randomKey);
}
Console.ReadKey();
}
public static void Main(string[] args)
{
GetRandomKey();
}
}
}
Aucun commentaire:
Enregistrer un commentaire