Calling an .exe, is it possible?

Ruaidhri

ok i need to write a prog that can call an exe.
now all i need to do is call the exe,and wait for it to execute,then call another exe.. when the second exe is called i want the application to then exit.
is this possible at all?
preffered languages would be java(have a good grasp of it,although i think it's not possible to do it in a java enviroment)
or C++(which i have only been learning for a few days now )
so any suggestions?

Gavin

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=332b128f.207201219%40news.bne.aone.net.au&rnum=2&prev=/groups%3Fsourceid%3Dnavclient%26q%3Dexecute%2Bexternal%2Bprograms%2Bjava

Gav

Ruaidhri

hmmm,yes it's a start,but the two exe's cant be executed at the same(they are 2 setup's,one has to installed first,then the other one)
this wont let me do this(arghh!)
even assembly will be considered

any suggestions?

[edit]
wait i think i'm getting the idea. new you can setup an object returned from "process" which controlls the program.so all i need is a loop to wait for some charistic of this object to change,then break the loop and start the next exe.
hmmm now wtf is process?..
/me looks at java.sun.com
BTW thanks Verb
[/edit]

snake_eyes

Runtime.getRuntime().exec("whatever").waitFor()

Hobbes

Make a batch file called "Sample.bat" like so.

@echo off
echo starting first program.
start /w runme1st.exe

echo 1st program finished, starting second program.
start /w runme2nd.exe

echo Both programs have finished. 

Ruaidhri

thenks

just got a solution myself

import java.lang.Runtime;
public class Test
{
public static void main(String argv[])
{
Process p;
Runtime r = Runtime.getRuntime();
try {
p = r.exec("notepad.exe");
p.waitFor();
}

}
}

thanks for the help

Martyr

If its for Windows, you could also check out the api's CreateProcess/WinExec/ShellExecuteEx.