1 files changed, 94 insertions, 0 deletions
diff --git a/Homework/cs5300/project-three/parser/State.java b/Homework/cs5300/project-three/parser/State.java
new file mode 100644
index 0000000..90c9c33
--- /dev/null
+++ b/Homework/cs5300/project-three/parser/State.java
@@ -0,0 +1,94 @@
+package parser;
+
+import java.util.*;
+
+public class State implements Comparable<State> {
+    private Set<Item> itemSet;
+    private List<Item> items;
+    private int name;
+
+    public State(int name) {
+        this.itemSet = new HashSet<>();
+        this.items = new ArrayList<>();
+        this.name = name;
+    }
+
+    public State() {
+        this(0);
+    }
+
+    public State(Item item) {
+        this();
+        addItem(item);
+    }
+
+    public void setName(int name) {
+        this.name = name;
+    }
+
+    public int getName() {
+        return this.name;
+    }
+
+    public List<Item> getItems() {
+        return this.items;
+    }
+
+    public int size() {
+        return items.size();
+    }
+
+    /*
+     * true if the item was added, false if it was already in the set
+     */
+    public boolean addItem(Item item) {
+        if (!itemSet.contains(item)) {
+            itemSet.add(item);
+            items.add(item);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 7;
+        ArrayList<Item> sortedList = new ArrayList<>(items);
+        sortedList.sort(Comparator.comparingInt(Item::hashCode));
+        for (Item item : sortedList) {
+            hash = 37 * hash + Objects.hashCode(item);
+        }
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        final State other = (State) obj;
+        if (items.size() != other.items.size()) {
+            return false;
+        }
+        for (Item item : items) {
+            if (!other.itemSet.contains(item)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        return this.name + ": " + items.toString();
+    }
+
+    @Override
+    public int compareTo(State o) {
+        return Integer.valueOf(this.name).compareTo(Integer.valueOf(o.name));
+    }
+
+}