diff --git a/res/lexer.c b/res/lexer.c
new file mode 100644
index 0000000..e69de29
diff --git a/src/com/compiler/lexer/ConstantChecker.java b/src/com/compiler/lexer/ConstantChecker.java
deleted file mode 100644
index 3c9b44b..0000000
--- a/src/com/compiler/lexer/ConstantChecker.java
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.compiler.lexer;
-
-import java.util.HashMap;
-import java.util.HashSet;
-
-public class ConstantChecker extends Automaton {
-
-    ConstantChecker() {
-        transitionForm.put(new StatePair(STATE0, decHeader), STATE1);
-        transitionForm.put(new StatePair(STATE1, decNumber), STATE1);
-        transitionForm.put(new StatePair(STATE1, euler), STATE3);
-        transitionForm.put(new StatePair(STATE1, empty), INTEGER);
-    }
-
-    private final int STATE0 = 0;
-    private final int STATE1 = 1;
-    private final int STATE2 = 2;
-    private final int STATE3 = 3;
-    private final int STATE4 = 4;
-    private final int STATE5 = 5;
-    private final int STATE6 = 6;
-    private final int STATE7 = 7;
-    private final int INTEGER = 8;
-
-    HashSet<Character> zero;
-    HashSet<Character> hexX;
-    HashSet<Character> decHeader;
-    HashSet<Character> decNumber;
-    HashSet<Character> octNumber;
-    HashSet<Character> hexNumber;
-    HashSet<Character> dot;
-    HashSet<Character> euler;
-
-
-    private HashMap<StatePair, Integer> transitionForm = new HashMap<>();
-    private HashSet<Integer> acceptStates = new HashSet<>();
-
-    @Override
-    int getStartState() {
-        return STATE0;
-    }
-
-    @Override
-    HashSet<Integer> getAcceptStates() {
-        return acceptStates;
-    }
-
-    @Override
-    HashMap<StatePair, Integer> getTransitionForm() {
-        return transitionForm;
-    }
-}
diff --git a/src/com/compiler/lexer/LexerTester.java b/src/com/compiler/lexer/LexerTester.java
new file mode 100644
index 0000000..17535fa
--- /dev/null
+++ b/src/com/compiler/lexer/LexerTester.java
@@ -0,0 +1,4 @@
+package com.compiler.lexer;
+
+public class LexerTester {
+}
diff --git a/src/com/compiler/lexer/Quaternary.java b/src/com/compiler/lexer/Quaternary.java
index 4e45216..3a66c01 100644
--- a/src/com/compiler/lexer/Quaternary.java
+++ b/src/com/compiler/lexer/Quaternary.java
@@ -9,7 +9,7 @@ public class Quaternary {
 
     }
 
-    enum operation {ADD, SUB, MUL, DIV, EQUAL}
+    public enum operation {ADD, SUB, MUL, DIV, EQUAL}
 
     operation opt;
     String opd1, opd2, opd3;