added basic methods, added basic variables

src/main/java/ab1/impl/GRUPPE/NFAImpl.java

@@ -5,27 +5,45 @@ import ab1.NFA;
 import ab1.Transition;
 
 import java.util.Collection;
+import java.util.HashSet;
 import java.util.Set;
 
 public class NFAImpl implements NFA {
-    @Override
-    public Set<String> getStates() {
-        return null;
+    private Set<String> states;
+    private Set<Transition> transitions;
+    private String initialState;
+    private Set<String> acceptingStates;
+    private boolean isFinalized;
+
+    public NFAImpl(String startState) {
+        this.initialState = startState;
+        this.states = new HashSet<>();
+        this.transitions = new HashSet<>();
+        this.acceptingStates = new HashSet<>();
+        this.isFinalized = false;
     }
 
     @Override
-    public Collection<Transition> getTransitions() {
-        return null;
+    public Set<String> getStates() {
+
+        return this.states;
     }
+    @Override
+    public Collection<Transition> getTransitions() {
+
+        return this.transitions;
+    }
+
 
     @Override
     public Set<String> getAcceptingStates() {
-        return null;
+
+        return this.acceptingStates;
     }
 
     @Override
     public String getInitialState() {
-        return null;
+        return this.initialState;
     }
 
     @Override
@@ -38,11 +56,13 @@ public class NFAImpl implements NFA {
 
     }
 
+    // #TODO later
     @Override
     public NFA union(NFA other) throws FinalizedStateException {
         return null;
     }
 
+    // #TODO later
     @Override
     public NFA intersection(NFA other) throws FinalizedStateException {
         return null;
@@ -70,12 +90,13 @@ public class NFAImpl implements NFA {
 
     @Override
     public boolean isFinalized() {
-        return false;
+
+        return isFinalized;
     }
 
     @Override
     public void finalizeAutomaton() {
-
+        this.isFinalized = true;
     }
 
     @Override