Thread: Append a single text file on button click through jTextField [a complete form]

Hi guys,
I am stuck badly as I am using java.nio the new java Input Output file system packages. I just wanted to implement simple coding that will append my text file. Below is the code,

private void btnSaveEmailActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: try { x = new Formatter("Clients.txt");   //Creates a new file by using Formatter class   } catch (FileNotFoundException ex) { Logger.getLogger(USF_JFrame.class.getName()).log(Level.SEVERE, null, ex); }   Integer tokNo=Integer.parseInt(txtTokenNo.getText()); //calls getText method to get the text from the txtTokenNo textbox     x.format("%-25s %-20d \n" + System.getProperty("line.separator"),"Token No: ",tokNo); //puts the formatted text in the created text file Integer EmpId=Integer.parseInt(txtEmployeeID.getText()); //calls getText method to get the text from the txtEmployeeID textbox     x.format("\n%-25s %-20d \n" + System.getProperty("line.separator"),"Employee id: ",EmpId); //puts the formatted text in the created text file Date getTrnDate=jDateChooser.getDate(); //calls getText method to get the text from the txtTranDate textbox String trnDate=String.format("%1$td-%1$tm-%1$tY",getTrnDate);     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Transaction date: ",trnDate); //puts the formatted text in the created text file String roomNo=txtRoomNo.getText(); //calls getText method to get the text from the txtRoomNo textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Room No: ",roomNo); //puts the formatted text in the created text file Integer extNo=Integer.parseInt(txtExtNo.getText()); //calls getText method to get the text from the txExtNo textbox     x.format("\n%-25s %-20d \n" + System.getProperty("line.separator"),"Extension is: ",extNo); //puts the formatted text in the created text file String empName=txtEmployeeName.getText(); //calls getText method to get the text from the txtEmployeeName textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Employee Name: ",empName); //puts the formatted text in the created text file String loc=txtLocation.getText(); //calls getText method to get the text from the txtLocation textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Location is: ",loc); //puts the formatted text in the created text file String dptName=txtDeptName.getText(); //calls getText method to get the text from the txtDeptName textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Department Name: ",dptName); //puts the formatted text in the created text file String probType=(String)cbProbType.getSelectedItem(); //calls getSelectedItem method to get the list item from the cbProbType DropDownList     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Problem Type: ",probType); //puts the formatted text in the created text file String urgType=(String)cbUrgencyType.getSelectedItem(); //calls getSelectedItem method to get the list item from the cbUrgencyType DropDownList     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Urgency Type: ",urgType); //puts the formatted text in the created text file String appType=(String)cbAppType.getSelectedItem(); //calls getSelectedItem method to get the list item from the cbAppType DropDownList     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Application Type: ",appType); //puts the formatted text in the created text file String jStatusType=(String)cbJobStatusType.getSelectedItem(); //calls getSelectedItem method to get the list item from the cbJobStatusType DropDownList     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Job Status Type: ",jStatusType); //puts the formatted text in the created text file String desc=txtDescription.getText(); //calls getText method to get the text from the txtDescription textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Description: ",desc); //puts the formatted text in the created text file   x.close();   }private void btnSaveEmailActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: try { x = new Formatter("Clients.txt");   //Creates a new file by using Formatter class   } catch (FileNotFoundException ex) { Logger.getLogger(USF_JFrame.class.getName()).log(Level.SEVERE, null, ex); }   Integer tokNo=Integer.parseInt(txtTokenNo.getText()); //calls getText method to get the text from the txtTokenNo textbox     x.format("%-25s %-20d \n" + System.getProperty("line.separator"),"Token No: ",tokNo); //puts the formatted text in the created text file Integer EmpId=Integer.parseInt(txtEmployeeID.getText()); //calls getText method to get the text from the txtEmployeeID textbox     x.format("\n%-25s %-20d \n" + System.getProperty("line.separator"),"Employee id: ",EmpId); //puts the formatted text in the created text file Date getTrnDate=jDateChooser.getDate(); //calls getText method to get the text from the txtTranDate textbox String trnDate=String.format("%1$td-%1$tm-%1$tY",getTrnDate);     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Transaction date: ",trnDate); //puts the formatted text in the created text file String roomNo=txtRoomNo.getText(); //calls getText method to get the text from the txtRoomNo textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Room No: ",roomNo); //puts the formatted text in the created text file Integer extNo=Integer.parseInt(txtExtNo.getText()); //calls getText method to get the text from the txExtNo textbox     x.format("\n%-25s %-20d \n" + System.getProperty("line.separator"),"Extension is: ",extNo); //puts the formatted text in the created text file String empName=txtEmployeeName.getText(); //calls getText method to get the text from the txtEmployeeName textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Employee Name: ",empName); //puts the formatted text in the created text file String loc=txtLocation.getText(); //calls getText method to get the text from the txtLocation textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Location is: ",loc); //puts the formatted text in the created text file String dptName=txtDeptName.getText(); //calls getText method to get the text from the txtDeptName textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Department Name: ",dptName); //puts the formatted text in the created text file String probType=(String)cbProbType.getSelectedItem(); //calls getSelectedItem method to get the list item from the cbProbType DropDownList     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Problem Type: ",probType); //puts the formatted text in the created text file String urgType=(String)cbUrgencyType.getSelectedItem(); //calls getSelectedItem method to get the list item from the cbUrgencyType DropDownList     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Urgency Type: ",urgType); //puts the formatted text in the created text file String appType=(String)cbAppType.getSelectedItem(); //calls getSelectedItem method to get the list item from the cbAppType DropDownList     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Application Type: ",appType); //puts the formatted text in the created text file String jStatusType=(String)cbJobStatusType.getSelectedItem(); //calls getSelectedItem method to get the list item from the cbJobStatusType DropDownList     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Job Status Type: ",jStatusType); //puts the formatted text in the created text file String desc=txtDescription.getText(); //calls getText method to get the text from the txtDescription textbox     x.format("\n%-25s %-20s \n" + System.getProperty("line.separator"),"Description: ",desc); //puts the formatted text in the created text file   x.close();   }

I want to use the java version 7 File system like

BufferedWriter writer = Files.newBufferedWriter( path, Charset.defaultCharset(), StandardOpenOption.CREATE); writer.write(content, 0, content.length());

I really don't have any clue how?

Please help

Dear Norm. There is no error but the text file is not appending. I want to append the same file on each and every click button.

Dear Norm. Yes i did it but where I have to implement this code in my programme and the code is written below...

package org.kodejava.example.io;



import java.io.*;



public class AppendFileExample

{

public static void main(String[] args)

{

File file = new File("user.txt");



try

{

FileWriter writer = new FileWriter(file, true);

writer.write("username=kodejava;password=secret"

+ System.getProperty("line.separator"));

writer.flush();

writer.close();

} catch (IOException e)

{

e.printStackTrace();

}

}

}

--- Update ---

Can you explain what the program does when it executes? (YES)
Does it create a new file? (YES)
Does it replace an existing file?(YES)
What data i written to the file?(YES)
Is the correct data written to the file?(YES)

I would like to implement this code in my programme to append the file like in this code appending the file is work properly but how can i arrange this code in my programme code as above mention in first post.

Thanks.

package org.kodejava.example.io;       import java.io.*;       public class AppendFileExample   {   public static void main(String[] args)   {   File file = new File("user.txt");       try   {   FileWriter writer = new FileWriter(file, true);   writer.write("username=kodejava;password=secret"   + System.getProperty("line.separator"));   writer.flush();   writer.close();   } catch (IOException e)   {   e.printStackTrace();   }   }   }

Exacltly i would like to arrange this code in my programme but problem is this that where should i put this code to append the file.

Making a new class of the append file code and how can i input multile variables in string?

Yes i am asking for multiple Strings in a single variable how can i do this?