java中方法的最大大小？ [英] Maximum size of a method in java?

问题描述

我知道java中方法的最大大小是64k。如果它超过，我们将得到一个编译器警告，如代码太大而无法编译。所以我们可以用这么少的内存来称之为java的缺点。

I come to know that the maximum size of a method in java is 64k. And if it exceeds, we'll get a compiler warning like "Code too large to compile". So can we call this a drawback of java with this small amount of memory.

我们可以增加这个大小限制还是真的可以增加？

Can we increase this size limit or is it really possible to increase ?

关于此方法大小的更多想法？

Any more idea regarding this method size ?

推荐答案

根据我的经验，64KB限制只是生成代码的一个问题。 ESP。在对大型数组进行实体化时（在代码中完成）

In my experience the 64KB limit is only a problem for generated code. esp. when intiialising large arrays (which is done in code)

在结构良好的代码中，每个方法都是可管理的长度，并且远小于此限制。可以从非Java文件（如文本或二进制文件）中读取要加载到数组中的大量数据。

In well structured code, each method is a manageable length and is much smaller than this limit. Large pieces of data, to be loaded into arrays, can be read from a non Java files like a text or binary file.

编辑：

JIT不会编译大于8 K的方法，这是值得的。这意味着代码运行速度较慢并且可能影响GC时间（因为搜索调用堆栈的效率较低）使用非编译方法的线程esp big）

It is worth nothing that the JIT won't compile methods larger than 8 K. This means the code runs slower and can impact the GC times (as it is less efficient to search the call stack of a thread with methods which are not compiled esp big ones)

如果可能，您希望将方法限制为8 K而不是64 K.

If possible you want to limit your methods to 8 K rather than 64 K.

这篇关于java中方法的最大大小？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！