How to close the parent process.

Question

Hello World
I am trying to open the external process like word using Runtime.exec(). The code below works perfectly fine. But I want to close the parent process. And only word file should remain on. How to do this? Experts please comment.
Regards,
Sachin Dare.
import java.io.*;
class Test {
public static void main(String[] args) {
try {
String cmd[] = new String[3];
cmd[0]= "cmd.exe";
cmd[1]= "/C";
cmd[2]= "C:\\Sachin\\EvicDocs\\sst58.doc";
Process process = Runtime.getRuntime().exec(cmd);
if(process != null) {
StreamHandler errorGobbler = new StreamHandler(process.getErrorStream(), "ERROR");
StreamHandler outputGobbler = new StreamHandler(process.getInputStream(), "OUTPUT");
errorGobbler.start();
outputGobbler.start();
int exitVal = process.waitFor();
System.out.println(" Exit Value is : " + exitVal);
if(exitVal != 0) {
throw new Exception();
} else {
System.out.println("Process is destroying......");
process.destroy();
catch(Exception e) {
e.printStackTrace();
class StreamHandler extends Thread {
InputStream is;
String type;
StreamHandler(InputStream is, String type) {
this.is = is;
this.type = type;
public void run() {
try {
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line=null;
while ( (line = br.readLine()) != null) {
System.out.println(type + ">" + line);
br.close();
isr.close();
} catch (Exception e) {
e.printStackTrace();
}

Answer 1

If you mean by "parent process " the java one starting e.g. Word, then say System.exit() after having launched the child process. Hopefully Word will not take care of stdin, stdout or err so this arrangement will be okay.