diff --git a/BCSD_Assignment_2/.idea/.name b/BCSD_Assignment_2/.idea/.name
deleted file mode 100644
index 30d74d2..0000000
--- a/BCSD_Assignment_2/.idea/.name
+++ /dev/null
@@ -1 +0,0 @@
-test
\ No newline at end of file
diff --git a/BCSD_Assignment_2/app/src/main/res/values-night/themes.xml b/BCSD_Assignment_2/app/src/main/res/values-night/themes.xml
deleted file mode 100644
index 13b3609..0000000
--- a/BCSD_Assignment_2/app/src/main/res/values-night/themes.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-    <!-- Base application theme. -->
-    <style name="Base.Theme.Test" parent="Theme.Material3.DayNight.NoActionBar">
-        <!-- Customize your dark theme here. -->
-        <!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
-    </style>
-</resources>
\ No newline at end of file
diff --git a/BCSD_Assignment_2/app/src/main/res/values/colors.xml b/BCSD_Assignment_2/app/src/main/res/values/colors.xml
deleted file mode 100644
index c8524cd..0000000
--- a/BCSD_Assignment_2/app/src/main/res/values/colors.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="black">#FF000000</color>
-    <color name="white">#FFFFFFFF</color>
-</resources>
\ No newline at end of file
diff --git a/BCSD_Assignment_2/app/src/main/res/values/strings.xml b/BCSD_Assignment_2/app/src/main/res/values/strings.xml
deleted file mode 100644
index fde7ba5..0000000
--- a/BCSD_Assignment_2/app/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <string name="app_name">test</string>
-</resources>
\ No newline at end of file
diff --git a/BCSD_Assignment_2/app/src/main/res/values/themes.xml b/BCSD_Assignment_2/app/src/main/res/values/themes.xml
deleted file mode 100644
index 3406f13..0000000
--- a/BCSD_Assignment_2/app/src/main/res/values/themes.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-    <!-- Base application theme. -->
-    <style name="Base.Theme.Test" parent="Theme.Material3.DayNight.NoActionBar">
-        <!-- Customize your light theme here. -->
-        <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
-    </style>
-
-    <style name="Theme.Test" parent="Base.Theme.Test" />
-</resources>
\ No newline at end of file
diff --git a/BCSD_Assignment_2/.gitignore b/assignment_week_4/.gitignore
similarity index 100%
rename from BCSD_Assignment_2/.gitignore
rename to assignment_week_4/.gitignore
diff --git a/BCSD_Assignment_2/.idea/.gitignore b/assignment_week_4/.idea/.gitignore
similarity index 100%
rename from BCSD_Assignment_2/.idea/.gitignore
rename to assignment_week_4/.idea/.gitignore
diff --git a/assignment_week_4/.idea/.name b/assignment_week_4/.idea/.name
new file mode 100644
index 0000000..2a3a3b0
--- /dev/null
+++ b/assignment_week_4/.idea/.name
@@ -0,0 +1 @@
+assignment_week_02
\ No newline at end of file
diff --git a/BCSD_Assignment_2/.idea/compiler.xml b/assignment_week_4/.idea/compiler.xml
similarity index 100%
rename from BCSD_Assignment_2/.idea/compiler.xml
rename to assignment_week_4/.idea/compiler.xml
diff --git a/assignment_week_4/.idea/deploymentTargetSelector.xml b/assignment_week_4/.idea/deploymentTargetSelector.xml
new file mode 100644
index 0000000..fc8303f
--- /dev/null
+++ b/assignment_week_4/.idea/deploymentTargetSelector.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetSelector">
+    <selectionStates>
+      <SelectionState runConfigName="app">
+        <option name="selectionMode" value="DROPDOWN" />
+      </SelectionState>
+      <SelectionState runConfigName="MainActivity">
+        <option name="selectionMode" value="DROPDOWN" />
+      </SelectionState>
+    </selectionStates>
+  </component>
+</project>
\ No newline at end of file
diff --git a/BCSD_Assignment_2/.idea/gradle.xml b/assignment_week_4/.idea/gradle.xml
similarity index 90%
rename from BCSD_Assignment_2/.idea/gradle.xml
rename to assignment_week_4/.idea/gradle.xml
index 32522c1..0897082 100644
--- a/BCSD_Assignment_2/.idea/gradle.xml
+++ b/assignment_week_4/.idea/gradle.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
diff --git a/assignment_week_4/.idea/kotlinc.xml b/assignment_week_4/.idea/kotlinc.xml
new file mode 100644
index 0000000..fdf8d99
--- /dev/null
+++ b/assignment_week_4/.idea/kotlinc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="1.9.0" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/BCSD_Assignment_2/.idea/migrations.xml b/assignment_week_4/.idea/migrations.xml
similarity index 100%
rename from BCSD_Assignment_2/.idea/migrations.xml
rename to assignment_week_4/.idea/migrations.xml
diff --git a/BCSD_Assignment_2/.idea/misc.xml b/assignment_week_4/.idea/misc.xml
similarity index 80%
rename from BCSD_Assignment_2/.idea/misc.xml
rename to assignment_week_4/.idea/misc.xml
index 6ba4969..8978d23 100644
--- a/BCSD_Assignment_2/.idea/misc.xml
+++ b/assignment_week_4/.idea/misc.xml
@@ -1,7 +1,6 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/BCSD_Assignment_2/.idea/vcs.xml b/assignment_week_4/.idea/vcs.xml
similarity index 100%
rename from BCSD_Assignment_2/.idea/vcs.xml
rename to assignment_week_4/.idea/vcs.xml
diff --git a/BCSD_Assignment_2/app/.gitignore b/assignment_week_4/app/.gitignore
similarity index 100%
rename from BCSD_Assignment_2/app/.gitignore
rename to assignment_week_4/app/.gitignore
diff --git a/BCSD_Assignment_2/app/build.gradle.kts b/assignment_week_4/app/build.gradle.kts
similarity index 89%
rename from BCSD_Assignment_2/app/build.gradle.kts
rename to assignment_week_4/app/build.gradle.kts
index c873ac4..db7ce12 100644
--- a/BCSD_Assignment_2/app/build.gradle.kts
+++ b/assignment_week_4/app/build.gradle.kts
@@ -4,11 +4,11 @@ plugins {
 }
 
 android {
-    namespace = "com.example.test"
-    compileSdk = 34
+    namespace = "com.example.assignment_week_02"
+    compileSdk = 35
 
     defaultConfig {
-        applicationId = "com.example.test"
+        applicationId = "com.example.assignment_week_02"
         minSdk = 24
         targetSdk = 34
         versionCode = 1
diff --git a/BCSD_Assignment_2/app/proguard-rules.pro b/assignment_week_4/app/proguard-rules.pro
similarity index 100%
rename from BCSD_Assignment_2/app/proguard-rules.pro
rename to assignment_week_4/app/proguard-rules.pro
diff --git a/BCSD_Assignment_2/app/src/androidTest/java/com/example/test/ExampleInstrumentedTest.kt b/assignment_week_4/app/src/androidTest/java/com/example/assignment_week_02/ExampleInstrumentedTest.kt
similarity index 82%
rename from BCSD_Assignment_2/app/src/androidTest/java/com/example/test/ExampleInstrumentedTest.kt
rename to assignment_week_4/app/src/androidTest/java/com/example/assignment_week_02/ExampleInstrumentedTest.kt
index a4f5463..1fb8201 100644
--- a/BCSD_Assignment_2/app/src/androidTest/java/com/example/test/ExampleInstrumentedTest.kt
+++ b/assignment_week_4/app/src/androidTest/java/com/example/assignment_week_02/ExampleInstrumentedTest.kt
@@ -1,4 +1,4 @@
-package com.example.test
+package com.example.assignment_week_02
 
 import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.ext.junit.runners.AndroidJUnit4
@@ -19,6 +19,6 @@ class ExampleInstrumentedTest {
     fun useAppContext() {
         // Context of the app under test.
         val appContext = InstrumentationRegistry.getInstrumentation().targetContext
-        assertEquals("com.example.test", appContext.packageName)
+        assertEquals("com.example.assignment_week_02", appContext.packageName)
     }
 }
\ No newline at end of file
diff --git a/BCSD_Assignment_2/app/src/main/AndroidManifest.xml b/assignment_week_4/app/src/main/AndroidManifest.xml
similarity index 94%
rename from BCSD_Assignment_2/app/src/main/AndroidManifest.xml
rename to assignment_week_4/app/src/main/AndroidManifest.xml
index b9e8872..e09ec59 100644
--- a/BCSD_Assignment_2/app/src/main/AndroidManifest.xml
+++ b/assignment_week_4/app/src/main/AndroidManifest.xml
@@ -10,7 +10,7 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/Theme.Test"
+        android:theme="@style/Theme.Assignment_week_02"
         tools:targetApi="31">
         <activity
             android:name=".MainActivity"
diff --git a/BCSD_Assignment_2/app/src/main/java/com/example/test/MainActivity.kt b/assignment_week_4/app/src/main/java/com/example/assignment_week_02/MainActivity.kt
similarity index 89%
rename from BCSD_Assignment_2/app/src/main/java/com/example/test/MainActivity.kt
rename to assignment_week_4/app/src/main/java/com/example/assignment_week_02/MainActivity.kt
index 0baf53d..679407a 100644
--- a/BCSD_Assignment_2/app/src/main/java/com/example/test/MainActivity.kt
+++ b/assignment_week_4/app/src/main/java/com/example/assignment_week_02/MainActivity.kt
@@ -1,4 +1,4 @@
-package com.example.test
+package com.example.assignment_week_02
 
 import android.os.Bundle
 import androidx.activity.enableEdgeToEdge
@@ -10,7 +10,7 @@ class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
-        setContentView(R.layout.activity_main)
+        setContentView(R.layout.constraint)
         ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
             val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
diff --git a/BCSD_Assignment_2/app/src/main/res/drawable/ic_launcher_background.xml b/assignment_week_4/app/src/main/res/drawable/ic_launcher_background.xml
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/drawable/ic_launcher_background.xml
rename to assignment_week_4/app/src/main/res/drawable/ic_launcher_background.xml
diff --git a/BCSD_Assignment_2/app/src/main/res/drawable/ic_launcher_foreground.xml b/assignment_week_4/app/src/main/res/drawable/ic_launcher_foreground.xml
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/drawable/ic_launcher_foreground.xml
rename to assignment_week_4/app/src/main/res/drawable/ic_launcher_foreground.xml
diff --git a/assignment_week_4/app/src/main/res/layout-land/constraint.xml b/assignment_week_4/app/src/main/res/layout-land/constraint.xml
new file mode 100644
index 0000000..43a9c3a
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/layout-land/constraint.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="32dp"
+    android:background="?android:attr/windowBackground">
+
+
+    <TextView
+        android:id="@+id/login_title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/login_title"
+        style="@style/TEXT"
+        android:textSize="24sp"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="24dp"/>
+
+
+    <EditText
+        style="@style/EditTextStyle"
+        android:id="@+id/user_id"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:hint="@string/hint_user_id"
+        android:inputType="text"
+        android:importantForAutofill="no"
+        app:layout_constraintTop_toBottomOf="@id/login_title"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="24dp"/>
+
+
+    <EditText
+        style="@style/EditTextStyle"
+        android:id="@+id/user_password"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:hint="@string/hint_user_password"
+        android:inputType="textPassword"
+        android:importantForAutofill="no"
+        app:layout_constraintTop_toBottomOf="@id/user_id"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="16dp"/>
+
+
+    <Button
+        style="@style/loginButton"
+        android:id="@+id/btn_login"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:text="@string/btn_login"
+        app:layout_constraintTop_toBottomOf="@id/user_password"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="24dp"/>
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/assignment_week_4/app/src/main/res/layout/activity_login_linear.xml b/assignment_week_4/app/src/main/res/layout/activity_login_linear.xml
new file mode 100644
index 0000000..67aa427
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/layout/activity_login_linear.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+
+    <TextView
+        android:id="@+id/login_title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="로그인"
+        android:textSize="24sp"
+        android:layout_gravity="center_horizontal"
+        android:layout_marginBottom="24dp"/>
+
+
+    <EditText
+        android:id="@+id/user_id"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="아이디"
+        android:inputType="text"
+        android:layout_marginBottom="16dp"/>
+
+
+    <EditText
+        android:id="@+id/user_password"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="비밀번호"
+        android:inputType="textPassword"
+        android:layout_marginBottom="24dp"/>
+
+
+    <Button
+        android:id="@+id/btn_login"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="로그인"/>
+
+
+</LinearLayout>
diff --git a/assignment_week_4/app/src/main/res/layout/activity_login_relative.xml b/assignment_week_4/app/src/main/res/layout/activity_login_relative.xml
new file mode 100644
index 0000000..15b564e
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/layout/activity_login_relative.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp">
+
+
+    <TextView
+        android:id="@+id/login_title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="24dp"
+        android:text="로그인"
+        android:textSize="24sp" />
+
+
+    <EditText
+        android:id="@+id/user_id"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/login_title"
+        android:layout_marginTop="24dp"
+        android:hint="아이디"
+        android:inputType="text"
+        android:importantForAutofill="no" />
+
+
+    <EditText
+        android:id="@+id/user_password"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/user_id"
+        android:layout_marginTop="16dp"
+        android:hint="비밀번호"
+        android:inputType="textPassword"
+        android:importantForAutofill="no" />
+
+
+    <Button
+        android:id="@+id/btn_login"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/user_password"
+        android:layout_marginTop="24dp"
+        android:text="로그인" />
+
+
+</RelativeLayout>
diff --git a/BCSD_Assignment_2/app/src/main/res/layout/activity_main.xml b/assignment_week_4/app/src/main/res/layout/activity_main.xml
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/layout/activity_main.xml
rename to assignment_week_4/app/src/main/res/layout/activity_main.xml
diff --git a/assignment_week_4/app/src/main/res/layout/constraint.xml b/assignment_week_4/app/src/main/res/layout/constraint.xml
new file mode 100644
index 0000000..3f45a6b
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/layout/constraint.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp"
+    android:background="?android:attr/windowBackground">
+
+
+    <TextView
+        android:id="@+id/login_title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/login_title"
+        style="@style/TEXT"
+        android:textSize="24sp"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="24dp"/>
+
+
+    <EditText
+        style="@style/EditTextStyle"
+        android:id="@+id/user_id"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:hint="@string/hint_user_id"
+        android:inputType="text"
+        android:importantForAutofill="no"
+        app:layout_constraintTop_toBottomOf="@id/login_title"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="24dp"/>
+
+
+    <EditText
+        style="@style/EditTextStyle"
+        android:id="@+id/user_password"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:hint="@string/hint_user_password"
+        android:inputType="textPassword"
+        android:importantForAutofill="no"
+        app:layout_constraintTop_toBottomOf="@id/user_id"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="16dp"/>
+
+
+    <Button
+        style="@style/loginButton"
+        android:id="@+id/btn_login"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:text="@string/btn_login"
+        app:layout_constraintTop_toBottomOf="@id/user_password"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="24dp"/>
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/assignment_week_4/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
rename to assignment_week_4/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/assignment_week_4/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
rename to assignment_week_4/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-hdpi/ic_launcher.webp b/assignment_week_4/app/src/main/res/mipmap-hdpi/ic_launcher.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-hdpi/ic_launcher.webp
rename to assignment_week_4/app/src/main/res/mipmap-hdpi/ic_launcher.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp b/assignment_week_4/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
rename to assignment_week_4/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-mdpi/ic_launcher.webp b/assignment_week_4/app/src/main/res/mipmap-mdpi/ic_launcher.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-mdpi/ic_launcher.webp
rename to assignment_week_4/app/src/main/res/mipmap-mdpi/ic_launcher.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp b/assignment_week_4/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
rename to assignment_week_4/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-xhdpi/ic_launcher.webp b/assignment_week_4/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
rename to assignment_week_4/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp b/assignment_week_4/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
rename to assignment_week_4/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp b/assignment_week_4/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
rename to assignment_week_4/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp b/assignment_week_4/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
rename to assignment_week_4/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/assignment_week_4/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
rename to assignment_week_4/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
diff --git a/BCSD_Assignment_2/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp b/assignment_week_4/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
rename to assignment_week_4/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
diff --git a/assignment_week_4/app/src/main/res/values-en/strings.xml b/assignment_week_4/app/src/main/res/values-en/strings.xml
new file mode 100644
index 0000000..809cf68
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/values-en/strings.xml
@@ -0,0 +1,7 @@
+<resources>
+    <string name="app_name">assignment_week_02</string>
+    <string name="login_title">Login</string>
+    <string name="hint_user_id">Please enter your ID</string>
+    <string name="hint_user_password">Please enter your password</string>
+    <string name="btn_login">Login</string>
+</resources>
\ No newline at end of file
diff --git a/assignment_week_4/app/src/main/res/values-night/themes.xml b/assignment_week_4/app/src/main/res/values-night/themes.xml
new file mode 100644
index 0000000..9a14f2c
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/values-night/themes.xml
@@ -0,0 +1,25 @@
+<resources>
+    <style name="Base.Theme.Assignment_week_02" parent="Theme.Material3.DayNight.NoActionBar">
+        <item name="android:windowBackground">@color/dark_background</item>
+        <item name="android:textColor">@color/dark_text_color</item>
+    </style>
+
+    <style name="Theme.Assignment_week_02" parent="Base.Theme.Assignment_week_02" />
+
+    <!-- TextView 색상 -->
+    <style name="TEXT">
+        <item name="android:textColor">@color/dark_text_color</item>
+    </style>
+
+    <!-- EditText 색상 -->
+    <style name="EditTextStyle">
+        <item name="android:backgroundTint">@color/dark_edit_text_background</item>
+        <item name="android:textColorHint">@color/dark_hint_text_color</item>
+    </style>
+
+    <!-- Button 색상 -->
+    <style name="loginButton">
+        <item name="android:backgroundTint">@color/dark_button_background</item>
+        <item name="android:textColor">@color/dark_button_text_color</item>
+    </style>
+</resources>
\ No newline at end of file
diff --git a/assignment_week_4/app/src/main/res/values/colors.xml b/assignment_week_4/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000..b2aff60
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/values/colors.xml
@@ -0,0 +1,17 @@
+<resources>
+    <!-- 라이트 모드 색상 -->
+    <color name="light_background">#F5F5F5</color>
+    <color name="light_text_color">#333333</color>
+    <color name="light_edit_text_background">#FFFFFF</color>
+    <color name="light_hint_text_color">#757575</color>
+    <color name="light_button_background">#2196F3</color>
+    <color name="light_button_text_color">#FFFFFF</color>
+
+    <!-- 다크 모드 색상 -->
+    <color name="dark_background">#121212</color>
+    <color name="dark_text_color">#E0E0E0</color>
+    <color name="dark_edit_text_background">#1E1E1E</color>
+    <color name="dark_hint_text_color">#BDBDBD</color>
+    <color name="dark_button_background">#2196F3</color>
+    <color name="dark_button_text_color">#FFFFFF</color>
+</resources>
\ No newline at end of file
diff --git a/assignment_week_4/app/src/main/res/values/strings.xml b/assignment_week_4/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000..7ed2f61
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/values/strings.xml
@@ -0,0 +1,7 @@
+<resources>
+    <string name="app_name">assignment_week_02</string>
+    <string name="login_title">로그인</string>
+    <string name="hint_user_id">아이디를 입력하세요</string>
+    <string name="hint_user_password">비밀번호를 입력하세요</string>
+    <string name="btn_login">로그인</string>
+</resources>
\ No newline at end of file
diff --git a/assignment_week_4/app/src/main/res/values/themes.xml b/assignment_week_4/app/src/main/res/values/themes.xml
new file mode 100644
index 0000000..435a9a0
--- /dev/null
+++ b/assignment_week_4/app/src/main/res/values/themes.xml
@@ -0,0 +1,25 @@
+<resources>
+    <style name="Base.Theme.Assignment_week_02" parent="Theme.Material3.DayNight.NoActionBar">
+        <item name="android:windowBackground">@color/light_background</item>
+        <item name="android:textColor">@color/light_text_color</item>
+    </style>
+
+    <style name="Theme.Assignment_week_02" parent="Base.Theme.Assignment_week_02" />
+
+    <!-- TextView 색상 -->
+    <style name="TEXT">
+        <item name="android:textColor">@color/light_text_color</item>
+    </style>
+
+    <!-- EditText 색상 -->
+    <style name="EditTextStyle">
+        <item name="android:backgroundTint">@color/light_edit_text_background</item>
+        <item name="android:textColorHint">@color/light_hint_text_color</item>
+    </style>
+
+    <!-- Button 색상 -->
+    <style name="loginButton">
+        <item name="android:backgroundTint">@color/light_button_background</item>
+        <item name="android:textColor">@color/light_button_text_color</item>
+    </style>
+</resources>
\ No newline at end of file
diff --git a/BCSD_Assignment_2/app/src/main/res/xml/backup_rules.xml b/assignment_week_4/app/src/main/res/xml/backup_rules.xml
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/xml/backup_rules.xml
rename to assignment_week_4/app/src/main/res/xml/backup_rules.xml
diff --git a/BCSD_Assignment_2/app/src/main/res/xml/data_extraction_rules.xml b/assignment_week_4/app/src/main/res/xml/data_extraction_rules.xml
similarity index 100%
rename from BCSD_Assignment_2/app/src/main/res/xml/data_extraction_rules.xml
rename to assignment_week_4/app/src/main/res/xml/data_extraction_rules.xml
diff --git a/BCSD_Assignment_2/app/src/test/java/com/example/test/ExampleUnitTest.kt b/assignment_week_4/app/src/test/java/com/example/assignment_week_02/ExampleUnitTest.kt
similarity index 88%
rename from BCSD_Assignment_2/app/src/test/java/com/example/test/ExampleUnitTest.kt
rename to assignment_week_4/app/src/test/java/com/example/assignment_week_02/ExampleUnitTest.kt
index 7a7bf3e..4fc2c1a 100644
--- a/BCSD_Assignment_2/app/src/test/java/com/example/test/ExampleUnitTest.kt
+++ b/assignment_week_4/app/src/test/java/com/example/assignment_week_02/ExampleUnitTest.kt
@@ -1,4 +1,4 @@
-package com.example.test
+package com.example.assignment_week_02
 
 import org.junit.Test
 
diff --git a/BCSD_Assignment_2/build.gradle.kts b/assignment_week_4/build.gradle.kts
similarity index 100%
rename from BCSD_Assignment_2/build.gradle.kts
rename to assignment_week_4/build.gradle.kts
diff --git a/BCSD_Assignment_2/gradle.properties b/assignment_week_4/gradle.properties
similarity index 100%
rename from BCSD_Assignment_2/gradle.properties
rename to assignment_week_4/gradle.properties
diff --git a/BCSD_Assignment_2/gradle/libs.versions.toml b/assignment_week_4/gradle/libs.versions.toml
similarity index 94%
rename from BCSD_Assignment_2/gradle/libs.versions.toml
rename to assignment_week_4/gradle/libs.versions.toml
index faf6ca2..04e14fb 100644
--- a/BCSD_Assignment_2/gradle/libs.versions.toml
+++ b/assignment_week_4/gradle/libs.versions.toml
@@ -1,14 +1,14 @@
 [versions]
 agp = "8.6.0"
 kotlin = "1.9.0"
-coreKtx = "1.13.1"
+coreKtx = "1.15.0"
 junit = "4.13.2"
 junitVersion = "1.2.1"
 espressoCore = "3.6.1"
 appcompat = "1.7.0"
 material = "1.12.0"
-activity = "1.9.2"
-constraintlayout = "2.1.4"
+activity = "1.9.3"
+constraintlayout = "2.2.0"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
diff --git a/BCSD_Assignment_2/gradle/wrapper/gradle-wrapper.jar b/assignment_week_4/gradle/wrapper/gradle-wrapper.jar
similarity index 100%
rename from BCSD_Assignment_2/gradle/wrapper/gradle-wrapper.jar
rename to assignment_week_4/gradle/wrapper/gradle-wrapper.jar
diff --git a/BCSD_Assignment_2/gradle/wrapper/gradle-wrapper.properties b/assignment_week_4/gradle/wrapper/gradle-wrapper.properties
similarity index 86%
rename from BCSD_Assignment_2/gradle/wrapper/gradle-wrapper.properties
rename to assignment_week_4/gradle/wrapper/gradle-wrapper.properties
index 6f40cec..7aba33c 100644
--- a/BCSD_Assignment_2/gradle/wrapper/gradle-wrapper.properties
+++ b/assignment_week_4/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-#Mon Oct 14 23:14:57 KST 2024
+#Tue Nov 05 14:07:51 KST 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
diff --git a/BCSD_Assignment_2/gradlew b/assignment_week_4/gradlew
similarity index 100%
rename from BCSD_Assignment_2/gradlew
rename to assignment_week_4/gradlew
diff --git a/BCSD_Assignment_2/gradlew.bat b/assignment_week_4/gradlew.bat
similarity index 100%
rename from BCSD_Assignment_2/gradlew.bat
rename to assignment_week_4/gradlew.bat
diff --git a/BCSD_Assignment_2/settings.gradle.kts b/assignment_week_4/settings.gradle.kts
similarity index 92%
rename from BCSD_Assignment_2/settings.gradle.kts
rename to assignment_week_4/settings.gradle.kts
index 46174f9..e5e132c 100644
--- a/BCSD_Assignment_2/settings.gradle.kts
+++ b/assignment_week_4/settings.gradle.kts
@@ -19,6 +19,6 @@ dependencyResolutionManagement {
     }
 }
 
-rootProject.name = "test"
+rootProject.name = "assignment_week_02"
 include(":app")
  
\ No newline at end of file