From cb34bde9715eec2eadf771a1169d055d54d80e47 Mon Sep 17 00:00:00 2001
From: MarcUs7i <96580944+MarcUs7i@users.noreply.github.com>
Date: Mon, 20 Jan 2025 20:48:57 +0100
Subject: [PATCH] Added implementation of Equal() and GetHashCode()

---
 BuildingDirectory/Model/BusinessCard.cs | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/BuildingDirectory/Model/BusinessCard.cs b/BuildingDirectory/Model/BusinessCard.cs
index 8288fd3..a677529 100644
--- a/BuildingDirectory/Model/BusinessCard.cs
+++ b/BuildingDirectory/Model/BusinessCard.cs
@@ -52,14 +52,20 @@ public sealed class BusinessCard
     /// </summary>
     /// <param name="obj">Other object to compare to</param>
     /// <returns>True if the objects are equal; false otherwise</returns>
-    // TODO
-    public override bool Equals(object? obj) 
-        => false;
+    public override bool Equals(object? obj)
+    {
+        if (obj is not BusinessCard other)
+        {
+            return false;
+        }
+        
+        return FirstName == other.FirstName && LastName == other.LastName;
+    }
 
     /// <summary>
     ///     Calculates the hash code for this object
     /// </summary>
     /// <returns>Numeric hash code</returns>
-    // TODO
-    public override int GetHashCode() => -1;
+    // Uses XOR to combine the bits of each hash code
+    public override int GetHashCode() => FirstName.GetHashCode() ^ LastName.GetHashCode();
 }
\ No newline at end of file