feat: add EPSILON constant and getter method in NFA class

Tony0380 · Nov 3, 2024 · 07dea93 · 07dea93
1 parent 4355b65
commit 07dea93
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/app/src/main/java/computability/calculation/model/NFA.java b/app/src/main/java/computability/calculation/model/NFA.java
@@ -5,7 +5,12 @@
 
 public class NFA extends DFA {
 
-
+    protected static final char EPSILON = '$';
+
+    public static final char getEpsilon() {
+        return EPSILON;
+    }
+
     @Override
     /**
      * Check if the given string is accepted by the NFA.
@@ -51,7 +56,7 @@ public boolean accept(String input, State state) {
     public List<State> getNexStates(State state, char symbol) {
         List<State> nextStates = new ArrayList<>();
         for (Transition t : Transitions) {
-            if (t.getStart().equals(state) && (t.getSymbol() == symbol || t.getSymbol() == '$')) {
+            if (t.getStart().equals(state) && (t.getSymbol() == symbol || t.getSymbol() == EPSILON)) {
                 nextStates.add(t.getEnd());
             }
         }