1 files changed, 38 insertions, 0 deletions
diff --git a/DiscoBot/Auxiliary/Calculator/Argument.cs b/DiscoBot/Auxiliary/Calculator/Argument.cs
new file mode 100644
index 0000000..2379bfe
--- /dev/null
+++ b/DiscoBot/Auxiliary/Calculator/Argument.cs
@@ -0,0 +1,38 @@
+namespace DiscoBot.Auxiliary.Calculator
+{
+    using System;
+    
+    /// <summary>
+    /// Provides an ISolvable class to save numbers. The class handles Argument checking and conversion from string to int. 
+    /// </summary>
+    public class Argument : ISolvable
+    {
+        private readonly int value;
+
+        public Argument(string value)
+        {
+            // check whether the value given is an empty string
+            if (string.IsNullOrEmpty(value)) 
+            {
+                throw new ArgumentException("Argument kann nicht mit einem leeren string instanziert werden. ", nameof(value));
+            }
+
+            if (!int.TryParse(value, out int result))
+            {
+                throw new ArgumentException($"Kann {value} nicht in Integer konvertieren");
+            }
+
+            this.value = result;
+        }
+
+        public int Solve()
+        {
+            return this.value;
+        }
+
+        public override string ToString()
+        {
+            return this.value.ToString();
+        }
+    }
+}
+\ No newline at end of file