diff --git a/packages/java/.idea/.gitignore b/packages/java/.idea/.gitignore
deleted file mode 100644
index 26d3352..0000000
--- a/packages/java/.idea/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
diff --git a/packages/java/.idea/workspace.xml b/packages/java/.idea/workspace.xml
new file mode 100644
index 0000000..c5a5729
--- /dev/null
+++ b/packages/java/.idea/workspace.xml
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AutoImportSettings">
+    <option name="autoReloadType" value="SELECTIVE" />
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="edfdc44e-4411-43f5-bd67-7e4b17bb74df" name="Changes" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/.gitignore" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/io/loganmatic/Main.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/io/loganmatic/Main.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/io/loganmatic/Main.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/io/loganmatic/Main.class" afterDir="false" />
+    </list>
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$/../.." />
+  </component>
+  <component name="MarkdownSettingsMigration">
+    <option name="stateVersion" value="1" />
+  </component>
+  <component name="ProjectColorInfo"><![CDATA[{
+  "customColor": "",
+  "associatedIndex": 3
+}]]></component>
+  <component name="ProjectId" id="2eSEI24Xm4llLJUwRND3SyvqdJ1" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "Application.Main.executor": "Run",
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "git-widget-placeholder": "main",
+    "kotlin-language-version-configured": "true"
+  }
+}]]></component>
+  <component name="SharedIndexes">
+    <attachedChunks>
+      <set>
+        <option value="jdk-11.0.22-corretto-11.0.22-4caba194b151-868cef46" />
+        <option value="jdk-20.0.2-corretto-20.0.2.1-4caba194b151-5bc9ecd2" />
+        <option value="jdk-22-openjdk-22-3183f394aec4-bad0321e" />
+      </set>
+    </attachedChunks>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="edfdc44e-4411-43f5-bd67-7e4b17bb74df" name="Changes" comment="" />
+      <created>1711889497069</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1711889497069</updated>
+    </task>
+    <servers />
+  </component>
+</project>
\ No newline at end of file
diff --git a/packages/java/README.md b/packages/java/README.md
index 0ccbe4c..b4822c5 100644
--- a/packages/java/README.md
+++ b/packages/java/README.md
@@ -3,4 +3,6 @@
 
 # Loganmatic
 
-## JAVA
\ No newline at end of file
+## JAVA
+
+// Code for JDK 22
diff --git a/packages/java/src/main/java/io/loganmatic/Main.java b/packages/java/src/main/java/io/loganmatic/Main.java
index 76ea276..e8d99d3 100644
--- a/packages/java/src/main/java/io/loganmatic/Main.java
+++ b/packages/java/src/main/java/io/loganmatic/Main.java
@@ -20,10 +20,10 @@ public static void main(String[] args) {
         System.out.println("Looks like it work... (: ");
         System.out.println("Euler number: " + createEulerNumber());
         System.out.println("Random number between 1 and 10: " + randomNumberBetween(1, 10));
-        System.out.println("Factorial of 5: " + factorial(3));
+        System.out.println("Factorial of 3: " + factorial(3));
         System.out.println("Discriminant of the quadratic equation: " + quadraticEquationDiscriminant(1, -4, -3));
-        System.out.println("Linear equation: " + linearEquation(1, 2));
-        System.out.println("Quadratic equation: " + quadraticEquation(1, -4, 4).msg);
+        System.out.println("Linear equation: " + linearEquation(1, 2).valueX);
+        System.out.println("Quadratic equation: " + quadraticEquation(1, -4, -6).msg);
         System.out.println("Pi number: " + Pi);
     }
     protected static double createEulerNumber() {
@@ -254,14 +254,14 @@ public static CubicEquationResult newtonMethodForCubicEquation(double valueA, do
             }
         }
 
-        if (Math.abs(firstRootCritical.get(0) - firstRootCritical.get(1)) < 1e-7) {
+        if (Math.abs(firstRootCritical.getFirst() - firstRootCritical.get(1)) < 1e-7) {
             return new CubicEquationResult(firstRootCritical.getFirst(), firstRootCritical.getFirst(), firstRootCritical.getFirst(), String.format("It has only 1 real root in X = %f", firstRootCritical.getFirst()));
-        } else if (Math.abs(firstRootCritical.get(0) - firstRootCritical.get(2)) < 1e-4) {
+        } else if (Math.abs(firstRootCritical.getFirst() - firstRootCritical.get(2)) < 1e-4) {
             return newtonMethodForCubicEquation(valueA, valueB, valueC, valueD);
         } else if (Math.abs(firstRootCritical.get(1) - firstRootCritical.get(2)) < 1e-4) {
             return newtonMethodForCubicEquation(valueA, valueB, valueC, valueD);
         } else {
-            return new CubicEquationResult(firstRootCritical.get(0), firstRootCritical.get(1), firstRootCritical.get(2), String.format("X1 ≅ %f, X2 ≅ %f, X3 ≅ %f", firstRootCritical.get(0), firstRootCritical.get(1), firstRootCritical.get(2)));
+            return new CubicEquationResult(firstRootCritical.getFirst(), firstRootCritical.get(1), firstRootCritical.get(2), String.format("X1 ≅ %f, X2 ≅ %f, X3 ≅ %f", firstRootCritical.getFirst(), firstRootCritical.get(1), firstRootCritical.get(2)));
         }
     }
 
diff --git a/packages/java/target/classes/io/loganmatic/Main.class b/packages/java/target/classes/io/loganmatic/Main.class
index 44ffe2d..909e15b 100644
Binary files a/packages/java/target/classes/io/loganmatic/Main.class and b/packages/java/target/classes/io/loganmatic/Main.class differ