added assignment and gitignore

.gitignore

-# ---> Java
-# Compiled class file
-*.class
+# Gradle files
+.gradle/
+build/
 
-# Log file
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Log/OS Files
 *.log
 
-# BlueJ files
-*.ctxt
+# Android Studio generated files and folders
+captures/
+.externalNativeBuild/
+.cxx/
+*.apk
+output.json
 
-# Mobile Tools for Java (J2ME)
-.mtj.tmp/
+# IntelliJ
+*.iml
+.idea/
+misc.xml
+deploymentTargetDropDown.xml
+render.experimental.xml
 
-# Package Files #
-*.jar
-*.war
-*.nar
-*.ear
-*.zip
-*.tar.gz
-*.rar
+# Keystore files
+*.jks
+*.keystore
 
-# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
-hs_err_pid*
+# Google Services (e.g. APIs or Firebase)
+google-services.json
 
+# Android Profiling
+*.hprof