如何将预先存在的Java项目导入Eclipse并启动并运行？

关于重复参考的评论：为什么在标记为重复的问题之前的几年被问到时，这会被标记为重复？我也相信问题，细节和反应比引用的问题好得多。如何将预先存在的Java项目导入Eclipse并启动并运行？

我一直是一个C++程序员很长一段时间，但我是新来的Java和新的Eclipse。我想使用touch graph "Graph Layout" code可视化我正在使用的一些数据。

该代码被组织这样的：

./com 
./com/touchgraph 
./com/touchgraph/graphlayout 
./com/touchgraph/graphlayout/Edge.java 
./com/touchgraph/graphlayout/GLPanel.java 
./com/touchgraph/graphlayout/graphelements 
./com/touchgraph/graphlayout/graphelements/GESUtils.java 
./com/touchgraph/graphlayout/graphelements/GraphEltSet.java 
./com/touchgraph/graphlayout/graphelements/ImmutableGraphEltSet.java 
./com/touchgraph/graphlayout/graphelements/Locality.java 
./com/touchgraph/graphlayout/graphelements/TGForEachEdge.java 
./com/touchgraph/graphlayout/graphelements/TGForEachNode.java 
./com/touchgraph/graphlayout/graphelements/TGForEachNodePair.java 
./com/touchgraph/graphlayout/graphelements/TGNodeQueue.java 
./com/touchgraph/graphlayout/graphelements/VisibleLocality.java 
./com/touchgraph/graphlayout/GraphLayoutApplet.java 
./com/touchgraph/graphlayout/GraphListener.java 
./com/touchgraph/graphlayout/interaction 
./com/touchgraph/graphlayout/interaction/DragAddUI.java 
./com/touchgraph/graphlayout/interaction/DragMultiselectUI.java 
./com/touchgraph/graphlayout/interaction/DragNodeUI.java 
./com/touchgraph/graphlayout/interaction/GLEditUI.java 
./com/touchgraph/graphlayout/interaction/GLNavigateUI.java 
./com/touchgraph/graphlayout/interaction/HVRotateDragUI.java 
./com/touchgraph/graphlayout/interaction/HVScroll.java 
./com/touchgraph/graphlayout/interaction/HyperScroll.java 
./com/touchgraph/graphlayout/interaction/LocalityScroll.java 
./com/touchgraph/graphlayout/interaction/RotateScroll.java 
./com/touchgraph/graphlayout/interaction/TGAbstractClickUI.java 
./com/touchgraph/graphlayout/interaction/TGAbstractDragUI.java 
./com/touchgraph/graphlayout/interaction/TGAbstractMouseMotionUI.java 
./com/touchgraph/graphlayout/interaction/TGAbstractMousePausedUI.java 
./com/touchgraph/graphlayout/interaction/TGSelfDeactivatingUI.java 
./com/touchgraph/graphlayout/interaction/TGUIManager.java 
./com/touchgraph/graphlayout/interaction/TGUserInterface.java 
./com/touchgraph/graphlayout/interaction/ZoomScroll.java 
./com/touchgraph/graphlayout/LocalityUtils.java 
./com/touchgraph/graphlayout/Node.java 
./com/touchgraph/graphlayout/TGAbstractLens.java 
./com/touchgraph/graphlayout/TGException.java 
./com/touchgraph/graphlayout/TGLayout.java 
./com/touchgraph/graphlayout/TGLensSet.java 
./com/touchgraph/graphlayout/TGPaintListener.java 
./com/touchgraph/graphlayout/TGPanel.java 
./com/touchgraph/graphlayout/TGPoint2D.java 
./com/touchgraph/graphlayout/TGScrollPane.java 
./TG-APACHE-LICENSE.txt 
./TGGL ReleaseNotes.txt 
./TGGraphLayout.html 
./TGGraphLayout.jar

如何在Eclipse中添加此项目，并把它编译和运行快？

来源

2008-09-27 JR Lawhorne

在Eclipse中创建一个新的Java项目。这将创建一个src文件夹（包含您的源文件）。
还创建一个lib文件夹（名称不是那么重要，但它遵循标准约定）。
将./com/*文件夹复制到/src文件夹中（您可以使用操作系统执行此操作，无需从Eclipse GUI进行任何特殊导入或任何操作）。
复制（即项目本身取决于jar文件）到/lib任何依赖关系（注意，这不应包括TGGL jar - ！由于评论者迈克桥面指出我的老年退休金计划的误解后）
复制其他TGGL东西到根项目文件夹（或专用于您需要在最终应用分发许可其他文件夹）
早在Eclipse中，选择你在步骤1中创建的项目，然后点击F5键（这会刷新实际内容的Eclipse文件夹树视图。
/src文件夹的内容将自动进行编译（将类文件放置在Eclipse为您创建项目时为您生成的/ bin文件中）。 如果你有依赖项（你不在你当前的项目中，但为了完整性我将在这里包含它），编译将最初失败，因为你缺少项目类路径中的依赖关系jar files。
最后，在Eclipse中打开文件夹/lib，right click每个需要jar file，选择Build Path->Add到构建路径。