How to write to the .doc file using apache POI

[jettimadhu]

I am trying to edit the word document(.doc/.docx) content using apache poi jar, But i unable to edit the document.
Is there any possible way to edit word document using poi?

[Dheeraj Joshi]

Read documents here

Regards
Dheeraj Joshi

[jettimadhu]

Hi ,thanks for reply. Here i am posting the problem i faced while writing the .doc file.

public class Headers {

public void newWordDoc(String baseFilename, String outputFilename) {
POIFSFileSystem fs = null;
HWPFDocument doc = null;
try {
fs = new POIFSFileSystem(new FileInputStream(baseFilename));
doc = new HWPFDocument(fs);

// Get the Range object encapsulating the text for the entire document.
Range range = doc.getRange();
public class Headers {

public void newWordDoc(String baseFilename, String outputFilename) {
POIFSFileSystem fs = null;
HWPFDocument doc = null;
try {
fs = new POIFSFileSystem(new FileInputStream(baseFilename));
doc = new HWPFDocument(fs);

// Get the Range object encapsulating the text for the //entire document.
Range range = doc.getRange();
if((range.text()).contains("SASI"))
range.replaceText("SASI", "${56565656}");
doc.write(new FileOutputStream(outputFilename));
}
catch(Exception ex) {
System.out.println("Caught an: " + ex.getClass().getName());
System.out.println("Message: " + ex.getMessage());
System.out.println("Stacktrace follows.............");
ex.printStackTrace(System.out);
}
}

public static void main(String[] args) {
Headers wt = new Headers();
wt.newWordDoc("/home/bvritic/Desktop/docs/LatestResume.doc", "/home/bvritic/Desktop/docs/LatestResume.doc");
}
}

I am trying to replace the string SASI with "${56565656}". It is working fine for first time.But i run the same program second time
i got the following error:

05-20 19:07:20.197: WARN/System.err(4885): java.io.IOException: Invalid header signature; read 0x0D9D80E29C80E20D, expected 0xE11AB1A1E011CFD0
05-20 19:07:20.374: WARN/System.err(4885): at org.apache.poi.poifs.storage.HeaderBlockReader.<in it>(HeaderBlockReader.java:107)
05-20 19:07:20.374: WARN/System.err(4885): at org.apache.poi.poifs.filesystem.POIFSFileSystem.<i nit>(POIFSFileSystem.java:151)
05-20 19:07:20.374: WARN/System.err(4885): at org.apache.poi.hwpf.HWPFDocument.verifyAndBuildPOI FS(HWPFDocument.java:132)
05-20 19:07:20.374: WARN/System.err(4885): at org.apache.poi.hwpf.HWPFDocument.<init>(HWPFDocume nt.java:145)

Please suggest any procedure to follow?
Thanks
Jetti.