Hi, I have a problem with my application. I need to develop an editor which compiles and interpretes java programmes. I am develoopping it in Java (Swing and pure Java). I have no problem in compiling a java programme from my editor. But while execuing if any body writes a programme which has console input the system hangs. I am using Runtime.exec() method to call command prompt of Win'2000. My editor is working fine for the programmes written without console input in my editor. I want the same type of input acceptance as JCreator / Vim editors accept.When i am truing to get input from console, system hangs. How can i achieve this? Please give me some source code help for my requirement.