Java Embedding for writing string into file

Hi ,
According to my requirement I need to create a file and write string data into file.
This string data I am getting as a output of the partner link. Their is 5 string variable which I need to write in file .
I want to use java Embedding activity .
So plz provide me any solution or any link.

Hi,
Why would you want to do this with java embeding? Why not just use the assign activity to create/concatenate the string and then write it to a file with the file adapter?
Andre

Similar Messages

\n is not working by the time writing text into file ...

Hi,
I am reading each line from file and writing into another file ...
It is writing continously in the file even if i use \n for new line ...
Why "\n" is not working by the time writing text into file ...
Here is my code:
import java.io.*;
import java.net.*;
import java.util.*;
public class Test11{
private BufferedReader data;
private String line=null;
private StringBuffer buf= new StringBuffer();
private BufferedWriter thewriter=null;
private File file=null;
private FileReader fr=null;
private String inputLocation="c:\\test14.txt";
public Test11(){ }
public void disp(){
try {
file=new File(inputLocation);
fr = new FileReader(file);
data = new BufferedReader(fr);
while ((line = data.readLine()) != null) {
buf.append(line + "\n");
String text=buf.toString();
thewriter = new BufferedWriter(new FileWriter("c:\\test15.txt"));
thewriter.write(text);
buf=null;
thewriter.close();
} catch(IOException e) { System.out.println("error ==="+e ); }
public static void main(String[] args) {
Test11 t=new Test11();
t.disp();
System.out.println("all files are converted...");
I used "\n" after reading each line .. i want output file also same as input file ... how do i break each line by the time writing into text file .. "\n" is working in word pad but now working in notepad ... in note pad i am getting some thing like rectangle insted of "\n" ....
Any help please .....
thanks.

\n works just fine, and every text editor in the world except Notepad understands that it is supposed to be a line-ending character. You don't have a problem, except in your choice of text editor. If somebody is forcing you to use Notepad then you'll have to output "\r\n" instead.

Java API for running entire ".sql" files on a remote DB ( mySQL or Oracle)?

Hi,
Would anyone happen to know if there's a java API for executing entire ".sql" files (containing several different SQL commands), on a remote database server ?
It's enough if the API works with MySQL and/or Oracle.
Just to demonstrate what i'm looking for:
Suppose you've created sql file "c:/test.sql" with several script lines:
-- test.sql:
insert into TABLE1 values(3,3);
insert into TABLE1 values(5,5);
create table TABLE2 (name VARCHER) ENGINE innoDB; -- MYSQL specific
Then the java API should look something like:
// Dummy java code:
String driver="com.mysql.jdbc.Driver";
String url= "jdbc:mysql://localhost:3306/myDb";
SomeAPI.executeScriptFile( "c:/test.sql", driver, url);
Thanks.

No such a API, but it's easy to parse all sqls in a file, then run those command:
For instance:
import java.sql.*;
import java.util.Properties;
/* A demo show how to load some sql statements. */
public class testSQL {
private final static Object[] getSQLStatements(java.util.Vector v) {
Object[] statements = new Object[v.size()];
Object temp;
for (int i = 0; i < v.size(); i++) {
temp = v.elementAt(i);
if (temp instanceof java.util.Vector)
statements[i] = getSQLStatements( (java.util.Vector) temp);
else
statements[i] = temp;
return statements;
public final static Object[] getSQLStatements(String sqlFile) throws java.
io.IOException {
java.util.Vector v = new java.util.Vector(1000);
try {
java.io.BufferedReader br = new java.io.BufferedReader(new java.io.
FileReader(sqlFile));
java.util.Vector batchs = new java.util.Vector(10);
String temp;
while ( (temp = br.readLine()) != null) {
temp = temp.trim();
if (temp.length() == 0)
continue;
switch (temp.charAt(0)) {
case '*':
case '"':
case '\'':
// System.out.println(temp);
break; //Ignore any line which begin with the above character
case '#': //Used to begin a new sql statement
if (batchs.size() > 0) {
v.addElement(getSQLStatements(batchs));
batchs.removeAllElements();
break;
case 'S':
case 's':
case '?':
if (batchs.size() > 0) {
v.addElement(getSQLStatements(batchs));
batchs.removeAllElements();
v.addElement(temp);
break;
case '!': //Use it to get a large number of simple update statements
if (batchs.size() > 0) {
v.addElement(getSQLStatements(batchs));
batchs.removeAllElements();
String part1 = temp.substring(1);
String part2 = br.readLine();
for (int i = -2890; i < 1388; i += 39)
batchs.addElement(part1 + i + part2);
for (int i = 1890; i < 2388; i += 53) {
batchs.addElement(part1 + i + part2);
batchs.addElement(part1 + i + part2);
for (int i = 4320; i > 4268; i--) {
batchs.addElement(part1 + i + part2);
batchs.addElement(part1 + i + part2);
for (int i = 9389; i > 7388; i -= 83)
batchs.addElement(part1 + i + part2);
v.addElement(getSQLStatements(batchs));
batchs.removeAllElements();
break;
default:
batchs.addElement(temp);
break;
if (batchs.size() > 0) {
v.addElement(getSQLStatements(batchs));
batchs.removeAllElements();
br.close();
br = null;
catch (java.io.FileNotFoundException fnfe) {
v.addElement(sqlFile); //sqlFile is a sql command, not a file Name
Object[] statements = new Object[v.size()];
for (int i = 0; i < v.size(); i++)
statements[i] = v.elementAt(i);
return statements;
public static void main(String argv[]) {
try {
String url;
Object[] statements;
switch (argv.length) {
case 0: //Use it for the simplest test
case 1:
url = "jdbc:dbf:/.";
if (argv.length == 0) {
statements = new String[1];
statements[0] = "select * from test";
else
statements = argv;
break;
case 2:
url = argv[0];
statements = getSQLStatements(argv[1]);
break;
default:
throw new Exception(
"Syntax Error: java testSQL url sqlfile");
Class.forName("com.hxtt.sql.dbf.DBFDriver").newInstance();
//Please see Connecting to the Database section of Chapter 2. Installation in Development Document
Properties properties = new Properties();
Connection con = DriverManager.getConnection(url, properties);
Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
//Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
// stmt.setMaxRows(0);
stmt.setFetchSize(10);
final boolean serializeFlag = false;//A test switch to serialize/deserialize the resultSet
ResultSet rs;
for (int i = 0; i < statements.length; i++) {
if (statements[i] instanceof java.lang.String) {
String temp = (java.lang.String) statements;
switch (temp.charAt(0)) {
case 'S':
case 's':
case '?':
System.out.println(temp);
rs = stmt.executeQuery(temp);
if (serializeFlag) {
// serialize the resultSet
try {
java.io.FileOutputStream fileOutputStream = new
java.io.FileOutputStream("testrs.tmp");
java.io.ObjectOutputStream
objectOutputStream = new java.io.
ObjectOutputStream(fileOutputStream);
objectOutputStream.writeObject(rs);
objectOutputStream.flush();
objectOutputStream.close();
fileOutputStream.close();
catch (Exception e) {
System.out.println(e);
e.printStackTrace();
System.exit(1);
rs.close(); //Let the CONCUR_UPDATABLE resultSet release its open files at once.
rs = null;
// deserialize the resultSet
try {
java.io.FileInputStream fileInputStream = new
java.io.FileInputStream("testrs.tmp");
java.io.ObjectInputStream objectInputStream = new
java.io.ObjectInputStream(
fileInputStream);
rs = (ResultSet) objectInputStream.
readObject();
objectInputStream.close();
fileInputStream.close();
catch (Exception e) {
System.out.println(e);
e.printStackTrace();
System.exit(1);
ResultSetMetaData resultSetMetaData = rs.
getMetaData();
int iNumCols = resultSetMetaData.getColumnCount();
for (int j = 1; j <= iNumCols; j++) {
// System.out.println(resultSetMetaData.getColumnName(j));
/* System.out.println(resultSetMetaData.getColumnType(j));
System.out.println(resultSetMetaData.getColumnDisplaySize(j));
System.out.println(resultSetMetaData.getPrecision(j));
System.out.println(resultSetMetaData.getScale(j));
System.out.println(resultSetMetaData.
getColumnLabel(j)
+ " " +
resultSetMetaData.getColumnTypeName(j));
Object colval;
rs.beforeFirst();
long ncount = 0;
while (rs.next()) {
// System.out.print(rs.rowDeleted()+" ");
ncount++;
for (int j = 1; j <= iNumCols; j++) {
colval = rs.getObject(j);
System.out.print(colval + " ");
System.out.println();
rs.close(); //Let the resultSet release its open tables at once.
rs = null;
System.out.println(
"The total row number of resultset: " + ncount);
System.out.println();
break;
default:
int updateCount = stmt.executeUpdate(temp);
System.out.println(temp + " : " + updateCount);
System.out.println();
else if (statements[i] instanceof java.lang.Object[]) {
int[] updateCounts;
Object[] temp = (java.lang.Object[]) statements[i];
try {
for (int j = 0; j < temp.length; j++){
System.out.println( temp[j]);
stmt.addBatch( (java.lang.String) temp[j]);
updateCounts = stmt.executeBatch();
for (int j = 0; j < temp.length; j++)
System.out.println((j+1)+":"+temp[j]);
for (int j = 0; j < updateCounts.length; j++)
System.out.println((j+1)+":" +updateCounts[j]);
catch (java.sql.BatchUpdateException e) {
updateCounts = e.getUpdateCounts();
for (int j = 0; j < updateCounts.length; j++)
System.out.println((j+1)+":"+updateCounts[j]);
java.sql.SQLException sqle = e;
do {
System.out.println(sqle.getMessage());
System.out.println("Error Code:" +
sqle.getErrorCode());
System.out.println("SQL State:" + sqle.getSQLState());
sqle.printStackTrace();
while ( (sqle = sqle.getNextException()) != null);
catch (java.sql.SQLException sqle) {
do {
System.out.println(sqle.getMessage());
System.out.println("Error Code:" +
sqle.getErrorCode());
System.out.println("SQL State:" + sqle.getSQLState());
sqle.printStackTrace();
while ( (sqle = sqle.getNextException()) != null);
stmt.clearBatch();
System.out.println();
stmt.close();
con.close();
catch (SQLException sqle) {
do {
System.out.println(sqle.getMessage());
System.out.println("Error Code:" + sqle.getErrorCode());
System.out.println("SQL State:" + sqle.getSQLState());
sqle.printStackTrace();
while ( (sqle = sqle.getNextException()) != null);
catch (Exception e) {
System.out.println(e.getMessage());
e.printStackTrace();

How to insert new line char while writing bytes into file

Hello Sir,
Is it possible to insert the new line character in set of String variables and stored them into bytearray ,then finally write into File?
This is the sample code which i tried:
             File f = new File(messagesDir,"msg" + msgnum + ".txt");
             FileOutputStream fout = new FileOutputStream(f);
                String fromString = "From:    "+msg.getFrom()+"\n";
                String toString = "To:     "+msg.getTo()+"\n";
                String dateString = "Sent:    "+msg.getDate()+"\n";
                  String msgString =msg.getBody()+"\n";
                String finalString=fromString+toString+dateString+msgString;
                byte[] msgBytes = finalString.getBytes();
                fout.write(msgBytes);
             fout.close();in the above code , i tried to add the new line as "\n" in end of each string. but when i look into the generated files msg1.txt , it contains some junk char [] .
please provide me the help
regards
venki

but it has still shown the the junk char, its not able
to create the new line in the created file i am afraid
how am i going to get the solution?:(Do not be afraid dear sir. You are obviously using a windows operating system or a mac operating system. On windows a newline is "\r\n" not '\n', and on a mac a newline is '\r', not '\n'. If you make that correction, dear sir, your program will work.
However, there is a better way. First, you probably want to buffer your output if you are going to write more than one time to the file, which will make writing to the file more efficient. In addition, when you buffer your output, you can use the newLine() method of the BufferedWriter object to insert a newline. The newline will be appropriate for the operating system that the program is running on. Here is an example:
File f = new File("C:/TestData/atest.txt");
BufferedWriter out = new BufferedWriter(new FileWriter(f) );
String fromString = "From: Jane";
out.write(fromString);
//Not written to the file until enough data accumulates.
//The data is stored in a buffer until then.
out.newLine();
String toString = "To: Dick";
out.write(toString);
out.newLine();
String dateString = "Sent: October 27, 2006";
out.write(dateString);
out.newLine();
out.close();
//Causes any unwritten data to be flushed from
//the buffer and written to the file.

Very slow painting while reading and writing doubles into file

for 15MB length file i = 7662080
for 50MB length file i = 12414368
Part of Code for writing into file follows like this:
try{
fos = new FileOutputStream("Angel.txt");
File f = new File("Angel.txt");
     if(f.length() >=4)
     f.delete();
fos = new FileOutputStream("Angel.txt");
dos = new DataOutputStream(new BufferedOutputStream(fos,1000000));
int x=0;
double y_last, y_new;
for(int j=0 ;j<i ;j++)
if(some condition)
y_new = ....;
try{
//previously in vectors
y_last = y_new;
vect.add(new Line2D.Double(x, y_last, x, y_new)_;
dos.writeDouble(y_new);
     }catch(Exception e){System.out.println(e);}
dos.close();
fos.close();
x++;
}catch(Exception excp){System.out.println(excp);}
part of code for reading from file follows like this:
public void paint(Graphics g)
try{
     double y1, y2 =0;
     Line2D.Double doub;
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     raf.seek((rect.x*8));
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          y1 = y2;
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          g2.draw(doub);
dis.close();
     raf.close();
}catch(Exception excp){System.out.println(excp);}
I tried using Object Streams but NotSerializable Exception is thrown as Line2D.Double objects
are not serialized.
Any idea to make reading and writing into file specially from MB files faster is appreciated.

Why are you reading in the file in the paint method ?
Create your data once before painting.
I think you should explain what is your goal and what behavior you want.
Denis

Line Break in Java for writing to a file

Hi
I am writing some data from excel sheet to a text file. I am using POI for reading the data from excel sheets.
Whenever i encounter a value in the cell i want to add it to the text file.. this works fine
But when its a new row(in excel sheet), i want it to be printed on a new line in the text file.
Does anyone have a suggestion how can i move the cursor to the next line?
Also i am taking the excel file from user and have to convert it to a tab limited file after some checking.
As anyone done this before & would like to share some experience or have some suggestions?
Thanx

Hi paul
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Help for writing to excel file from Java Program

Hi,
I am new to Java and Java API. I need to write to some specific cells of an excel file from a Java Program. Please anyone help me or give some directions.
Thanks,
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Hi,
I saw an example while searching in google about importing jxl.*. Could you direct me how I can import this package as java does not have it. I heard that jxl is much easier that POI although I am not new to both of them.
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Java GUI for Unix not showing . files

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Hi Axel,
it sounds a bit odd that this CAD integration software is writing files to hidden folders but the user later is forced to navigate inside there.
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I am hesitating to generally switch on showing hidden files and folders because it will irritate most end users.
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Writing data into file from URL address

Hi!
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Use InputStream and OutputStream classes, not Readers/Writers. The latter are for "text" I/O, not "binary".

Writing data into files using VHDL Textio

Hi
I was trying to write nos. from 1 to 8 into a text file using the below program.
process
type IntegerFileType is file of integer;
file data_out: IntegerFileType ;
variable fstatus: FILE_OPEN_STATUS;
variable coun: natural:= 1;
begin
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for i in 1 to 8 loop
write(data_out, coun);
coun := coun + 1;
end loop;
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But getting the below attached result..
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Do you want the numbers in the file to be human readable ASCII?
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Java mapping - for reading the binary file contents and changing filename

Hi,
I have already gone through the various bolgs and threads and have not been able to find a solution to my problem.
One blog did give some idea but did not help- "JAAPPING", an alternate way of reading a CSV file
I am not very good in java but have been trying some out recently to fulfill the interface requirements.
I would really appreciate if you could help am I am giving below the detailed scenario below.
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Part 2 - need to develop
The file should now be renamed according to the incoming value in 2nd line - specifically the 12 digit value 001180256210 and placed on the R/3 dircetory folder.
The new file name in the above example should be:
AC_NO_001180256210_datetime
The module for the above was created and the last time I checked it was working.
However, when I wanted to do final testing in Dev and move the changes further, the module has seemed to have stopped working so I need an alternate solution fast.
I was thinking of doing the Java mapping as I will be more in control as to what is going on thereby reducing the dependency.
There is no need to create any target xml structure as the file as it is needs to be placed in the target folder with a new name.
I can get the file name in UDF which I have already created but i am not usre if it working.
Can you please help?
Any help will be greatly appreciated.
Regards,
Archana
+44-7867636863

Hi Stephen
The xml must be getting added in the below part of the code. It is coming from arg[0]
You can put a check and get it removed.
while ((len = arg0.read(buffer)) != -1) {
arg1.write(buffer, 0, len);
Regards
Osman

Writing string into spreadsheet

i am reading the serial data(in string format) and storing it in text file one by one .but i was not able to write the data in spreadsheet one by one...i am getting the result as last iteration value has been repeated iteration times.....eg If the last iteration value is 5 and it has iterated for 4 times...the output i m getting is 5 5 5 5....but expected result is 2 3 4 5....help me out in ths

I am getting the proper result in wordpad..but i am not getting properly in ms excel.......
Attachments:
block diagram.png ‏147 KB
expected result.png ‏164 KB
result.png ‏149 KB

How to get an XML string from a Java Bean without wrting to a file first ?

I know we can save a Java Bean to an XML file with XMLEncoder and then read it back with XMLDecoder.
But how can I get an XML string of a Java Bean without writing to a file first ?
For instance :
My_Class A_Class = new My_Class("a",1,2,"Z", ...);
String XML_String_Of_The_Class = an XML representation of A_Class ?
Of course I can save it to a file with XMLEncoder, and read it in using XMLDecoder, then delete the file, I wonder if it is possible to skip all that and get the XML string directly ?
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I think so too, but I am trying to send the object to a servlet as shown below, since I don't know how to send an object to a servlet, I can only turn it into a string and reconstruct it back to an object on the server side after receiving it :
import java.io.*;
import java.net.*;
import java.util.*;
class Servlet_Message        // Send a message to an HTTP servlet. The protocol is a GET or POST request with a URLEncoded string holding the arguments sent as name=value pairs.
public static int GET=0;
public static int POST=1;
private URL servlet;
// the URL of the servlet to send messages to
public Servlet_Message(URL servlet) { this.servlet=servlet; }
public String sendMessage(Properties args) throws IOException { return sendMessage(args,POST); }
// Send the request. Return the input stream with the response if the request succeeds.
// @param args the arguments to send to the servlet
// @param method GET or POST
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      out.close(); // ESSENTIAL for this to work!
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//        try { sb.append(sep+URLEncoder.encode(name,"UTF-16")+"="+URLEncoder.encode(args.getProperty(name),"UTF-16")); }
        catch (UnsupportedEncodingException e) { System.out.println(e); }
        sep="&";
    return sb.toString();
}As shown above the servlet need to encode a string.
Now my question becomes :
<1> Is it possible to send an object to a servlet, if so how ? And at the receiving end how to get it back to an object ?
<2> If it can't be done, how can I be sure to encode the string in the right format to send it over to the servlet ?
Frank

Java code for converting EDI file to XML file

Dear friends,
Can you please help me in getting the java code for converting to EDI file to XML file.

Hi,
You can convert the EDI file to XML in any of the ways
1) Using third party seeburger adapters
2) Conversion agent
3) Stylus studio.
I think using java code it will be very difficult.
Thnx
Chirag

Writing to .txt file

Hi
Thanks for any help and advice i got with my last problem, an other small problem i have. I'm tring to use a gui to write information to a file, its compling with no errors, creates the file but won't write any thing to it. I have it inside the try and catch no luck i've tried it out side the try and catch also. The same problem
Any help would be great i know its only something small just can't see it
Cheers
Ambrose
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.*;
public class Create_Mail extends JPanel implements ActionListener
private JButton b1;
private JButton b4;
private JButton b2;
private JButton b3;
private JLabel l4;
private JLabel l5;
private JTextArea ta6;
private JComboBox comb7;
private JTextField t8;
private JTextField t9;
private JButton b10;
private FileOutputStream fos;
     private PrintWriter out;
public Create_Mail() {
//construct preComponents
String[] jcomp7Items = {"Ireland", "IP 1", "IP 2", "IP 3", "IP 4", "IP 5", "America", "IP1", "IP2", "IP3"};
//construct components
b1 = new JButton ("Save E-Mail");
b4 = new JButton ("a");
b2 = new JButton ("Exit System");
b3 = new JButton ("Main Menu");
l4 = new JLabel (" To :");
l5 = new JLabel (" Subject :");
ta6 = new JTextArea (5, 5);
comb7 = new JComboBox (jcomp7Items);
t8 = new JTextField (5);
t9 = new JTextField (5);
b10 = new JButton ("Calculate Size of E-Mail");
//adjust size and set layout
setPreferredSize (new Dimension (482, 488));
setLayout (null);
//add components
add (b4);
add (b1);
add (b2);
add (b3);
add (l4);
add (l5);
add (ta6);
add (comb7);
add (t8);
add (t9);
add (b10);
//set component bounds
b1.setBounds (35, 360, 100, 20);
b2.setBounds (160, 395, 105, 20);
b3.setBounds (160, 360, 100, 20);
b4.setBounds (100, 460, 95, 20);
b10.setBounds (285, 360, 180, 20);
l4.setBounds (25, 30, 100, 25);
l5.setBounds (25, 80, 100, 25);
ta6.setBounds (30, 150, 435, 165);
comb7.setBounds (365, 35, 95, 20);
t8.setBounds (135, 85, 210, 20);
t9.setBounds (135, 35, 210, 20);
          b1.addActionListener(this);
          b2.addActionListener(this);
          b3.addActionListener(this);
          b4.addActionListener(this);
          b10.addActionListener(this);
public void actionPerformed( ActionEvent e )
//When the user hits the below button a comparsion is made
//If it's true then its executes
//The process is continued depending on the button the user hits
System.out.println("button => "+ e.getActionCommand());
if(( new String("a")).compareTo(e.getActionCommand()) == 0 )
System.exit(0);
if(( new String("Save E-Mail")).compareTo(e.getActionCommand()) == 0 )
try
          fos = new FileOutputStream("E-mail.txt", true );
out = new PrintWriter(new OutputStreamWriter(fos));
     String s1 = ta6.getText();
               String s2 = t8.getText();
               String s3 = t9.getText();
               s1.trim();
               s2.trim();
               s3.trim();
               System.out.println("Test in dos prompt");
               out.println(s1 +"," s2 "," +s3);
               ta6.setText("");
               t8.setText("");
               t9.setText("");
          catch (Exception ex){}
public static void main (String[] args)
JFrame frame = new JFrame ("Create_Mail");
frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
System.out.println("fgfd");
frame.getContentPane().add (new Create_Mail());
frame.pack();
frame.setVisible (true);
}

Hello Ambrose,
for writing text into a file use a Writer, e.g.
BufferedWriter outfile = new BufferedWriter(new FileWriter("E-mail.txt"));
String s= s1 +"," +s2 +"," +s3;
outfile.write(s,0,s.length());
outfile.newLine();hth
J�rg

Java Embedding for writing string into file

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