main()方法进一步调用buildPerson() 静态方法,这将在先前的栈内存之上进行内存分配。再次按照上述方式存储变量。 而新创建对象person (类型为Person )的所有实例变量都将被保存到堆内存中。 程序堆栈示意 参考资料: baeldung.com/java-stack digitalocean.com/commun javatpoint.com
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https://stackoverflow.com/questions/12646404/concurrenthashmap-and-hashtable-in-java/31579480#31579480 https://stackoverflow.com/questions/510632/whats-the-difference-between-concurrenthashmap-and-collections-synchronizedmap https://stackoverflow.com/questions/2889777/difference-between-hashmap-linkedhashmap-...