Opening a *.txt document

Question

Hello.
If we have created a JTextField, upon running we manually enter a path of a *.txt file, how can in a click of a JButton opens the *.txt file with notepad? I'm actually confused with the linking of the path name and the value passing. Please help me.

Answer 1

You need to :
1. Place a batch file with a known path under your own config directory.
2. getText() out of the JTextField component.
3. Verify if its a valid and existing file (use java.io.File).
3. Open the batch file and edit it to hold the following string : "notepad *.txt".
4. After you build your batch file you need to execute it by using the following :
String[] callAndArgs = new String[] {PATH_TO_BATCH_FILE};
Runtime rt = Runtime.getRuntime();
Process child = rt.exec(callAndArgs);
BufferedReader stdInput = new BufferedReader(new InputStreamReader(child.getInputStream);
BufferedReader stdError = new BufferedReader(new InputStreamReader(child.getErrorStream);
// read the output from the command
log.info("Here is the standard output of the command:");
String s = "";
while ((s = stdInput.readLine()) != null) {
log.info(s);
// read any errors from the attempted command
log.info("Here is the standard error of the command (if any):");
while ((s = stdError.readLine()) != null) {
log.info(s);
child.waitFor();
retCode = child.exitValue();