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How is an object represented in memory after the program compilation is completed?

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Answer from AI

After program compilation on Android (Java/Kotlin), in memory, an object is represented as a set of data located in the heap. Memory contains:

  • Object header (metadata, e.g., class reference, garbage collector info).
  • Object fields (instance variables) with their values.

References to objects are stored in the stack, while objects themselves are in the heap. The JVM or ART (Android Runtime) manages memory allocation and freeing for objects.

Here's a rough representation of an object in memory:

Heap:
+---------------------+
| Object Header       |
| Field1 (int)        |
| Field2 (String ref) |
| ...                 |
+---------------------+

Stack:
+---------------------+
| Reference to Object |
+---------------------+