String和StringBuffer在Java中有什么区别？(What is the difference between String and StringBuffer in Java?)

 大多数Linux的UML工具看起来真的很糟糕，但你可以使用这些： 
 
 
 
 ArgoUML （基于Java，我有一些毛病图） 
 
 
 Umbrello的 
 
 
 Violet UML编辑器 （需要Java） 
 
 
 UMLet （需要Java） 
 
 
 迪亚 
 
 
 的StarUML 
 
 
 实验/备选方案： 
 
 
 
 ASCII流程 - 您不能总是包含文档中的图像，但简单的文本看起来到处都是相同的，很好用于代码快速概述。 
 
 
 Cloudcraft - 用Cloudcraft绘制AWS图。 适用于快速架构图。 
 
 
 对于快速图纸，谁也不怕“代码”一些图表，我也建议看看这个产品http://yuml.me/diagram/scruffy/class/samples 。 

Most of the UML tools for linux looks really bad, but you could use these: 
 
 
 
ArgoUML (Java based, I had some glitches with diagrams)
 
 
Umbrello
 
 
Violet UML Editor (Java required)
 
 
UMLet (Java required)
 
 
Dia
 
 
StarUML
 
 
Experimental/alternatives:
 
 
 
ASCII flow - you can not always include images in documentation but simple text looks everywhere same, good to use in code for quick overview.
 
 
Cloudcraft - Draw AWS diagrams with Cloudcraft. Good for quick architecture diagrams.
 
 
For quick drawings and who does not scare to "code" some diagrams I also suggest to take look at this product http://yuml.me/diagram/scruffy/class/samples.