Eclipse - 编译&执行程序 [英] Eclipse - Compiling & executing program

问题描述

在过去，我已经使用JCreator来开发我的java应用程序。我想尝试Eclipse并看到它的IDE。

在JCreator上，我可以打开一个java文件并在命令提示符下运行它。在Eclipse中，我无法找到如何编译和运行别人写的java文件，而无需先创建一个项目，创建一个新的java类，然后从文件中复制和粘贴代码。

我甚至无法弄清楚如何将java文件导入到项目中。

所以我的问题：

1.如何在没有首先创建java项目的情况下打开，编译和运行java文件。

2.如何将java文件导入到我已经拥有的项目中。

3.如何在命令提示符下运行程序，而不是在Eclipse中的控制台上（更新：更清楚）直接从Eclipse。

谢谢。

解决方案

1 /不要忘记）

3 /由于您希望直接从eclipse运行，请使用为在此线程中指出，外部工具

该外部工具将运行 C：\WINDOWS\system32\cmd.exe 与工作目录 $ {container_loc}

这篇文章如何在我的控制台中打开Windows命令提示符？ 。

http://www.avajava.com/tutorials /eclipse/how-do-i-open-a-windows-command-prompt-in-my-console/how-do-i-open-a-windows-command-prompt-in-my-console-03.gif

这将给出：

http://www.avajava.com/tutorials/eclipse/how-do-i-open-a-windows-command-prompt-in-my-console/how-do-i -open-a-windows-command-prompt-in-my-console-05.gif

In the past, I have used JCreator to develop my java applications. I wanted to try Eclipse and see its IDE.

On JCreator, I could just open a java file and run it in the command prompt. On Eclipse, I cannot find out how I can compile and run a java file written by someone else without first creating a project, creating a new java class and then copy and pasting the code from the file.

I cannot even figure out how to import a java file into the project.

So my questions:
1. How can I open, compile and run a java file without first creating a java project.
2. How can I import a java file into a project I already have.
3. How can I run the program in command prompt, instead of on the console that is in Eclipse, (update: to be more clear) directly from the Eclipse.

Thank you.

解决方案

1/ Do not forget scrapbook page (also presented here)

In theory, you could copy a class in it, but since that class is actually encapsulated into a "main invisible" class, as an inner class, it would not support any static methods in it.

However, for a quick chunk of code, it does the trick just fine.

(from this Eclipse tutorial)

3/ Since you want it run directly from eclipse, use as indicated in this thread, an External tool

That External Tool would run C:\WINDOWS\system32\cmd.exe with working directory ${container_loc}

More details in this article "How do I open a Windows Command Prompt in my console ?".

http://www.avajava.com/tutorials/eclipse/how-do-i-open-a-windows-command-prompt-in-my-console/how-do-i-open-a-windows-command-prompt-in-my-console-03.gif

That will give:

http://www.avajava.com/tutorials/eclipse/how-do-i-open-a-windows-command-prompt-in-my-console/how-do-i-open-a-windows-command-prompt-in-my-console-05.gif

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