Which language uses .pde extension?

While searching for an implementation of the Barnsley’s Fern fractal I came across a implementation that has .pde extension. Which programming language uses this extension? Implementation Page Answer This code is from Processing.org an open source Java based IDE. You can find it Processing.org. The Arduino IDE also uses this extension, although they run on … Read more

How to test if an executable exists in the %PATH% from a windows batch file?

I’m looking for a simple way to test if an executable exists in the PATH environment variable from a Windows batch file. Usage of external tools not provided by the OS is not allowed. The minimal Windows version required is Windows XP. Answer Windows Vista and later versions ship with a program called where.exe that … Read more