Eclipse的Java的断点 - 的目的是什么？ [英] Eclipse java breakpoints - What is the purpose?

问题描述

我与Android教程的工作，我只是到了调试部分，我想知道什么断点的目的是什么。我不能告诉，只是还没有...它实际上是停止的应用程序，所以我可以肯定它运行，直到这一点，我也可以设置多个断点，并利用它们作为标记从断点走走停停，以检查断点我的code？

I'm working with the Android tutorial and I just got to the debugging section and I'm wondering what the purpose of a Breakpoint is. I can't tell just yet... is it actually stopping the app so I can be sure it runs up until that point, or can I set multiple breakpoints and use them as markers to "stop and go" from breakpoint to breakpoint checking my code?

推荐答案

断点是执行停止的地方，你就可以开始检查当前形势下在调试器。这包括：

A breakpoint is a place where the execution stops, and you can start inspecting the current situation in your debugger. This includes:

• 点实际上已经达到了


• 所有变量的当前值


• 要手动更改所有变量的能力


• 当前堆栈跟踪 - 即哪些方法是当前的
前执行

• 要添加和执行任意code
的能力

• 来检查方法调用的结果，而不是与实际着手执行的能力

• the point has actually been reached
• the current values of all variables
• the ability to change manually all variables
• the current stacktrace - i.e. which methods were executed before the current one
• the ability to add and execute arbitrary code
• the ability to inspect the results of a method invocation, while not actually proceeding with the execution

除此之外，您可以手动向前一步，一行一行在你的应用程序。有三个选项：

In addition to that, you can manually step forward, line by line in your application. There are three options:

• 步入 - 进入这在当前行调用的方法


• 一步了 - 进入下一行


• 步回 - 从目前的方法返回（来调用它的方法）

如果你有，你想做任何上述的多个地方可以设置多个断点。

You can set multiple breakpoints if you have multiple places where you want to do any of the above.

一般来说，一个调试器是使用的System.out.println（..）或 log.debug（非常的升级版.. ）遍，以确保一定的条件是present的地方。 （感谢BalusC这点）

Generally speaking, a debugger is a very upgraded version of using System.out.println(..) or log.debug(..) all over the place in order to make sure certain conditions are present. (thanks to BalusC for this point)

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