Standard Java compiles into .class files packed inside .jar archives. Android translates this bytecode into .dex (Dalvik Executable) files packed inside .apk packages. 🛠️ How to Run Java Programs (.jar) on Android
Android devices run compiled Java code using the Android Runtime (ART) (or Dalvik on older versions) instead of a standard Java Virtual Machine (JVM). download java runtime environment for android
Do not download random .apk files claiming to be "Oracle Java for Android." These are frequently wrapped malware or adware installers. Standard Java compiles into