在 Java 中通过引用传递? [英] Passing by reference in Java?

问题描述

在C++中，如果需要修改2个对象，可以通过引用传递.你如何在java中完成这个?假设这 2 个对象是原始类型，例如 int.

解决方案

你不能.Java 不支持传递对变量的引用.一切都是按值传递的.

当然，当一个对象的引用通过值传递时，它会指向同一个对象，但是这不是通过引用调用.>

In C++, if you need to have 2 objects modified, you can pass by reference. How do you accomplish this in java? Assume the 2 objects are primitive types such as int.

解决方案

You can't. Java doesn't support passing references to variables. Everything is passed by value.

Of course, when a reference to an object is passed by value, it'll point to the same object, but this is not calling by reference.

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