need help about process

Question

when i start process like process= Runtime.getRuntime().exec(\"gnome-terminal\");, it start shell execution, i want to stop shell execution and want to redirect

Answer 1

From the Javadoc:

The ProcessBuilder.start() and Runtime.exec() methods create a native process and return an instance of a subclass of Process that can be used to control the process and obtain information about it. The class Process provides methods for performing input from the process, performing output to the process, waiting for the process to complete, checking the exit status of the process, and destroying (killing) the process.

The methods that create processes may not work well for special processes on certain native platforms, such as native windowing processes, daemon processes, Win16/DOS processes on Microsoft Windows, or shell scripts. The created subprocess does not have its own terminal or console. All its standard io (i.e. stdin, stdout, stderr) operations will be redirected to the parent process through three streams (getOutputStream(), getInputStream(), getErrorStream()). The parent process uses these streams to feed input to and get output from the subprocess. Because some native platforms only provide limited buffer size for standard input and output streams, failure to promptly write the input stream or read the output stream of the subprocess may cause the subprocess to block, and even deadlock.

In other words, after connecting a buffered stream reader to process.getInputStream() as you did, you should read all its output in order to make it run properly.

Update: here is a simple example how to do it.