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POExecuting any .exe file from a Java application
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copied!<p>I have a Java application in which user can give any executable file (.exe) and the application will run it on the system. Like cmd.exe, notepad.exe or on unix a.out etc.</p> <p>Now the code I have written after going through numerous examples just doesnt seem to work for the user created files notepad.exe works fine but the files written using TC++ and all don't work. Can anyone point out what can be the cause of the error here?</p> <pre><code> import java.io.*; class NewThread implements Runnable{ Thread t; NewThread(){ t = new Thread(this, "Demo Thread"); System.out.println("child thread:" + t); t.start(); } public void run(){ try { String line; Process p = Runtime.getRuntime().exec("C:\\TC\\BIN\\AA.EXE"); InputStream in = p.getInputStream(); OutputStream out = p.getOutputStream(); InputStream err = p.getErrorStream(); BufferedReader br= new BufferedReader(new InputStreamReader(in)); System.out.println("Chid running"); while((line=br.readLine())!=null){ System.out.println(line); } //p.destroy(); } catch (Exception e) { System.out.println("ERROR"); } System.out.println("Child thread exiting"); } } class ThreadDemo { public static void main (String args[]){ new NewThread(); try { for(int i=05;i>0;i--){ System.out.println("Main Thread:" + i); Thread.sleep(1000); } } catch (InterruptedException e){ System.out.println("Main thread Interrupted"); } System.out.println("Main thread exiting"); } } </code></pre> <p>....OK...doesn't work means When I run it using Eclipse-> Child thread exits[all the system.out messages are printed on console but not the ones to be printed by .exe AA.exe doesn't run at all. Some other points:</p> <blockquote> <ol> <li>It runs normally, No exceptions are thrown only problem is Output of AA.exe is not visible anywhere.</li> <li>It prints an exit code 7 for the process p...any clue????</li> <li>notepad.exe or MSWord.exe and even TC.exe are running perfectly normal when invoked through this code.</li> </ol> </blockquote> <p>here's the code for AA.exe:</p> <pre><code> #include <stdlib.h> #include <stdio.h> #include <values.h> #include <time.h> int main(void) { int i,j; for(j=0;j<150;j++) { // randomize(); for(i=0;i<200;i++) printf("%d\n", rand() % MAXINT); } return 0; } </code></pre>

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