Created and added new module as dependency

app/build.gradle

@@ -32,6 +32,7 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation 'com.google.android.material:material:1.4.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
+    implementation project(path: ':myModule')
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'

app/src/main/java/com/example/retrofitapplication/MainActivity.java

@@ -5,13 +5,17 @@
 import androidx.recyclerview.widget.RecyclerView;
 
 import android.os.Bundle;
+import android.util.Log;
 import android.widget.Toast;
 
+import com.example.mymodule.HelperDateUtility;
 import com.example.retrofitapplication.Adapter.MyAdapter;
 import com.example.retrofitapplication.Api.MyApi;
 import com.example.retrofitapplication.Api.RetrofitClient;
 import com.example.retrofitapplication.Model.GitResponse;
 
+import java.time.LocalDate;
+
 import retrofit2.Call;
 import retrofit2.Callback;
 import retrofit2.Response;
@@ -26,7 +30,10 @@ protected void onCreate(Bundle savedInstanceState) {
         recyclerView=findViewById(R.id.recycler_View);
         recyclerView.setLayoutManager(new LinearLayoutManager(this));
         callGitApi("kotlin");
-
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
+            LocalDate mydate = HelperDateUtility.getCurrentDate();
+            Log.d("DATE MODULE: ",mydate.toString());
+        }
     }
 
     public void callGitApi(String name){

myModule/.gitignore

@@ -0,0 +1 @@
+/build

myModule/build.gradle

@@ -0,0 +1,37 @@
+plugins {
+    id 'com.android.library'
+}
+
+android {
+    compileSdk 31
+
+    defaultConfig {
+        minSdk 21
+        targetSdk 31
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles "consumer-rules.pro"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.3.1'
+    implementation 'com.google.android.material:material:1.4.0'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}

myModule/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

myModule/src/androidTest/java/com/example/mymodule/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.example.mymodule;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.mymodule.test", appContext.getPackageName());
+    }
+}

myModule/src/main/AndroidManifest.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.mymodule">
+
+</manifest>

myModule/src/main/java/com/example/mymodule/HelperDateUtility.java

@@ -0,0 +1,15 @@
+package com.example.mymodule;
+
+import android.os.Build;
+
+import androidx.annotation.RequiresApi;
+
+import java.time.LocalDate;
+
+public class HelperDateUtility {
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    public static LocalDate getCurrentDate(){
+        return LocalDate.now();
+    }
+}

myModule/src/test/java/com/example/mymodule/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.example.mymodule;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

settings.gradle

@@ -8,3 +8,4 @@ dependencyResolutionManagement {
 }
 rootProject.name = "RetrofitApplication"
 include ':app'
+include ':myModule'