「每天一道面試題」如何用代碼查看JVM中堆和非堆的使用情況？

MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean(); System.out.println(memoryMXBean.getHeapMemoryUsage()); System.out.println(memoryMXBean.getNonHeapMemoryUsage());

>>阅读原文<<