Question

I have this in a VB.NET console application:

Dim p As ProcessStartInfo
p = New ProcessStartInfo(Environment.CurrentDirectory & "\bin\javac.exe",ClassName & ".java")
Dim ps As Process = Process.Start(p)

This does run the java compiler on the file, but it does so in a new window. I want the output from javac to appear in the same console that is running my application.
How can I do this? Perhaps there is another method for running commands in the current console? Or maybe I can supress the second console window from opening and redirect its output to the current console?

Answer 1

I don’t think you can run in the same console but you can get the output by redirecting the standard out:

Dim si = New ProcessStartInfo(Environment.CurrentDirectory & "\bin\javac.exe",ClassName & ".java")

si.RedirectStandardOutput = True
si.UseShellExecute = False
Dim proc = New Process() 
proc.StartInfo = si
proc.Start()
proc.StandardOutput.ReadToEnd()
proc.WaitForExit()