C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Threading.Tasks;
					
public class Program
{
	public static void Main()
	{
		string[] inputs = new[] { "1235", "one", "4156", "2", "    ", "90!", ".50", "0"};
		
		foreach(var input in inputs)
		{
			Console.Clear();
			
			Console.Write("Checking input...");
			var result = IsNumeric(input);
			
			if(result)
				Console.WriteLine($"'{input}' is a number!");
			else
				Console.WriteLine($"'{input}' is NOT a number!");
		}
	}
	
	public static bool IsNumeric(string input)
	{
		if(input.Length == 0)
			return false;
		
		for(int i = 0; i <input.Length; i++)
			if(!char.IsNumber(input[i]))
				return false;
			   
		return true;
	}
}

 
using System;
using System.Threading.Tasks;
                    
public class Program
{
    public static void Main()
    {
        string[] inputs = new[] { "1235", "one", "4156", "2", "    ", "90!", ".50", "0"};
        
        foreach(var input in inputs)
        {
            Console.Clear();
            
            Console.Write("Checking input...");
            var result = IsNumeric(input);
            
            if(result)
                Console.WriteLine($"'{input}' is a number!");
            else
                Console.WriteLine($"'{input}' is NOT a number!");
        }
    }
    
    public static bool IsNumeric(string input)
    {
        if(input.Length == 0)
            return false;
        
        for(int i = 0; i <input.Length; i++)
            if(!char.IsNumber(input[i]))
                return false;
               
        return true;
    }
}

2 of Diamonds. Sum: 2
1 of Clubs. Sum: 3
3 of Hearts. Sum: 6
6 of Spades. Sum: 12
8 of Spades. Sum: 20
7 of Hearts. Sum: 27
1 of Hearts. Sum: 28
4 of Diamonds. Sum: 32
2 of Spades. Sum: 34
13 of Diamonds. Sum: 47
9 of Clubs. Sum: 56
11 of Hearts. Sum: 67
10 of Diamonds. Sum: 77
5 of Hearts. Sum: 82
9 of Spades. Sum: 91
13 of Hearts. Sum: 104
3 of Diamonds. Sum: 107
9 of Diamonds. Sum: 116
12 of Hearts. Sum: 128
10 of Spades. Sum: 138
10 of Clubs. Sum: 148
2 of Clubs. Sum: 150
4 of Clubs. Sum: 154
4 of Hearts. Sum: 158
3 of Spades. Sum: 161
3 of Clubs. Sum: 164
8 of Hearts. Sum: 172
1 of Diamonds. Sum: 173
2 of Hearts. Sum: 175
11 of Clubs. Sum: 186
8 of Diamonds. Sum: 194
6 of Hearts. Sum: 200
12 of Clubs. Sum: 212
5 of Diamonds. Sum: 217
12 of Spades. Sum: 229
10 of Hearts. Sum: 239
7 of Spades. Sum: 246
5 of Clubs. Sum: 251
11 of Spades. Sum: 262
7 of Diamonds. Sum: 269
13 of Clubs. Sum: 282
13 of Spades. Sum: 295
7 of Clubs. Sum: 302
11 of Diamonds. Sum: 313
4 of Spades. Sum: 317
9 of Hearts. Sum: 326
6 of Clubs. Sum: 332
5 of Spades. Sum: 337
12 of Diamonds. Sum: 349
6 of Diamonds. Sum: 355
8 of Clubs. Sum: 363
1 of Spades. Sum: 364

Cached Result
Last Run:	12:47:25 pm
Compile:	0.109s
Execute:	0.016s
Memory:	32kb
CPU:	0.016s

View IL Code