However, the actual application—the code and the resources (images, text)—is stored inside the file. If you download facebook messenger.jar , you have the complete application.
The Legacy of Facebook Messenger.jar: Connecting the First Mobile Generation facebook messenger.jar
This is the most important section. While official versions of facebook messenger.jar existed, However, the actual application—the code and the resources
The .jar file—a —was the primary delivery method for applications on J2ME (Java 2 Micro Edition) devices. For millions of users in the late 2000s and early 2010s, "Messenger.jar" was their first experience with real-time mobile chatting. The Role of Java in Facebook's Global Strategy While official versions of facebook messenger
The facebook messenger.jar app was a stripped-down, lightweight solution. It could:
Unlike the Android APK or iOS IPA, a JAR (Java Archive) file was the standard distribution format for applications on phones from Nokia, Samsung, Sony Ericsson, BlackBerry (pre-OS10), and LG made between roughly 2005 and 2012.