Cool way to create new Class in Eclipse

Recently I was amazed in how I could create a new class inside eclipse. All I needed to do was copy the source code for a class and paste, using Ctrl + V, into a selected package in eclipse. It automatically created a new java class and added the code to the file. I tired this same technique with another ide but failed to see the support there. I think this is a really cool feature provided by eclipse.

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