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The Java Developers Almanac 1.4Order this book from Amazon. |
e55. Getting the Size of the HeapThe heap is the area in memory in which objects are created.// Get current size of heap in bytes long heapSize = Runtime.getRuntime().totalMemory(); // Get maximum size of heap in bytes. The heap cannot grow beyond this size. // Any attempt will result in an OutOfMemoryException. long heapMaxSize = Runtime.getRuntime().maxMemory(); // Get amount of free memory within the heap in bytes. This size will increase // after garbage collection and decrease as new objects are created. long heapFreeSize = Runtime.getRuntime().freeMemory();
e49. Terminating the Application e50. Determining When the Application Is About to Exit e51. Computing Elapsed Time e52. Loading Native Code e53. Implementing a Class That Can Be Sorted e54. Redirecting Standard Output, and Error
© 2002 Addison-Wesley. |