Abstract: Various embodiments of the present invention relate to a method for managing a memory in a Java execution environment, and an electronic device for performing same, and an electronic device may comprise a processor and a memory electrically connected to the processor, wherein: the memory is configured to store multiple Java application programs, and stores instructions that, when executed, cause the processor to execute a virtual machine configured to execute at least one Java application stored in the memory; and when generation of an object is detected during execution of the Java application, the virtual machine executed by the processor generates a reference for the generated object, identifies an application, which has generated the object by a threshold or more, on the basis of the generated reference, and provides information on the identified application to the processor. Other embodiments may also be possible.

Abstract: Disclosed does a porous crystal comprising ammonia borane in which the ammonia borane is chemically bonded thereto by a chemical reaction while a porous crystal structure is maintained.

Abstract: Disclosed does a porous crystal comprising ammonia borane in which the ammonia borane is chemically bonded thereto by a chemical reaction while a porous crystal structure is maintained.