What is the easiest way to build an IDE in java?

i have to build an ide for my programming lang开发者_StackOverflow中文版uage , and i need to implement features like :

syntax highlighting , auto complete , line numbering , ...

so i need to know how to implement these features or if there is an existing components for code editing please refer to it .

thanks

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Eclipse has a nice framework for this:

http://www.eclipse.org/Xtext/

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The correct answer is there is no easy way to build an ide.

Some ideas: Eclipse has a good framework as mentioned, you could make a plugin for notepad++, you could custom build SciTE.