From 49bb1842ee157639a3526cfc16480152c2ee008f Mon Sep 17 00:00:00 2001
From: grandrx10 <41299974+grandrx10@users.noreply.github.com>
Date: Mon, 18 Sep 2023 14:17:24 -0400
Subject: [PATCH 1/2] Multiset Abstract class

---
 src/MultiSet.java | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 src/MultiSet.java

diff --git a/src/MultiSet.java b/src/MultiSet.java
new file mode 100644
index 0000000..550fb20
--- /dev/null
+++ b/src/MultiSet.java
@@ -0,0 +1,2 @@
+public class MultiSet {
+}

From 19dac82521a2667946b4b35c485d1aa5d2f6a75a Mon Sep 17 00:00:00 2001
From: grandrx10 <41299974+grandrx10@users.noreply.github.com>
Date: Mon, 18 Sep 2023 14:21:45 -0400
Subject: [PATCH 2/2] added MultiSet

---
 src/MultiSet.java | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/MultiSet.java b/src/MultiSet.java
index 550fb20..e79ec63 100644
--- a/src/MultiSet.java
+++ b/src/MultiSet.java
@@ -1,2 +1,15 @@
-public class MultiSet {
+abstract class MultiSet {
+
+    /*
+    An abstract class representing the MultiSet ADT, which supports the
+    add, remove, is_empty, count, and contains operations.
+
+    This class itself does not handle how the underlying data is stored.
+     */
+    abstract boolean add(Object item);
+    abstract boolean remove(Object item);
+    abstract boolean contains(Object item);
+    abstract boolean is_empty(Object item);
+    abstract int count(Object item);
+    abstract int size();
 }