An ADT doesn’t care about the memory representation ... In contrast, a data structure is a concrete implementation of one or more ADTs, similar to how Java classes implement interfaces.

The Java class loader is the part of the JVM that loads classes into memory and makes them available ... allocating and maintaining the referential structure that the developer takes for granted.

it allocates the memory and writes the values now using instances of the VarHandle class. MemoryLayout POINT_2D = MemoryLayout.structLayout( ValueLayout.JAVA_DOUBLE.withName("x"), ValueLayout.JAVA ...

Java is known for its garbage collection. Garbage collection (GC) is a form of automatic memory management ... there is just one .java, one .class extension. Java has a binary standard.