Each Thread Should Read Files From Different Folders

Apr 14, 2015

I need to read folder structure from the excle file and need to read all the files which are available inside folder structure.folder structure like below

c:Migrate
C:MigrateMigrateFiles
...
...
..etc.

I am ble to read files which is avalibale in all the folders with single thread,i want to read those files with multiple threads,each thread shoud reads the files from different folder. here how to read.

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I developed an application that is accessing some property files. The condition was that the user should be able to modify the content or parameters of those property file.How can I distribute the application using Java web start that also includes those property file in the client side?

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I have a code that uploads files in server after browsing folders and files then get the paths of files but I have a problem in getting the paths

List items = upload.parseRequest(request);
Iterator iterator = items.iterator();
while (iterator.hasNext()) {
FileItem item = (FileItem) iterator.next();
if (!item.isFormField())
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root = getServletContext().getRealPath("/");
path = new File(root + "/uploads");

[Code]...

list1 must has paths that I want but I do not get the paths of upload files

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Nov 4, 2014

I created a main class called X and two Y and Z classes.

Y and Z implements Runnable classes.

class X contains a static array A that can be accessed in Y and Z.

The Run () method of the class Y reads an input file and populates the vector A.

The Run () method of the Z class uses data stored into the vector A to process some data.

The objective of using threads in this problem is: as the vector A is filled in the Run () method of class Y, the Run () method of the class Z will processing the received values ​​in the vector A.

to do this I did the following calls in the main method of class X:

ObjectY y = new Y ();
Thready thread = new Thread (objectY);
threadY.start ();
ObjectZ new Z = Z ();
Threadz thread = new Thread (objectZ);
threadZ.start ();

is that correct? I'm getting the expected results, but dont know if the code is parallelized in fact.

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How do I get my program to read .txt files in java?

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Dec 30, 2014

I am fallowing programming tutorials on youtube.And this code is for reading zip files content.I did the same things like in the video.But Code dosent work

try {
ZipInputStream zis=
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ZipEntry zip;
while((zip=zis.getNextEntry())!=null){
jTextArea1.append(zip.getName());
zis.closeEntry();
}
zis.close();
} catch (FileNotFoundException ex) {
Logger.getLogger(Zip.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(Zip.class.getName()).log(Level.SEVERE, null, ex);
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I've written a program to read files in a directory but I'd like for it to only read the text files of that directory.
 
import java.io.*; 
public class Data {
  public static void main(String[] args) throws IOException {
  String target_dir = "C:files";
  File dir = new File(target_dir);
  File[] files = dir.listFiles();
 
[Code] .....

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Jul 25, 2013

My background is mainframe and i'm new to java. We're moving from mainframe to the java world and I'm trying to achieve a task. I have a main folder and then bunch of sub folders and each sub folder has bunch of xml files, files size are varies some of them are 900kb. I need to read these xml files and send the output to the txt file (comma separated).

Some possible options or sample example... Please find below the sample xml file. I need to extract information's only where
 
FORM name="F00001".
 
[CODE]<PACKET>
   <FORM name="F00001" sequence="0">
      <FIELD sequence="1">02</FIELD>
      <FIELD sequence="2">00000</FIELD>
      <FIELD sequence="3">CAB100</FIELD>
      <FIELD sequence="4">TEFAP001</FIELD>
      <FIELD sequence="5">EMPTY FIELD</FIELD>
      <FIELD sequence="6">009.999.989</FIELD>

[Code] .....

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Apr 13, 2014

I am trying to write a program that read from a csv file called matches.csv.

A single football match can end with a win or a draw: in first case the winner team get 3 points and the loser none, in the second case of draw each of the two teams get 1 point.

For example, the first line of the file matches.txt is as follow:

In the file it contains the following data.

17/08/2013ArsenalAston Villa13
24/08/2013Aston VillaLiverpool01

This means that a match has been played on the 17/08/2013 where Arsenal scored 1 goal while Aston Villa 3 goals: thus Arsenal got 0 points while Aston Villa 3 points.

How can I structure my output to make it make it read

Position Team Played Points
1 Aston Villa 2 3
2 Liverpool 1 3
3 Arsenal 1 0

import java.io.File;

import java.io.FileNotFoundException;
import java.util.Scanner;
 public class Teams { 
public static void main(String[] args) {
String fileName = "matches.csv";
File file = new File(fileName);

[code]....

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Jan 7, 2015

I have a Dynamic Web Project , and in one of the Class method I am reading an xml file. The problem is until now I am giving the absolute path of file on my system

File quizFile=new File("C:UsersMahtabQuizzesquiz1.xml");

I understand its bad way , so I want to put these xml files in my eclipse project itself.

So I created a new folder called quizzes under src and put all those xml files in quizzes folder.

I am trying to read the file , I tried

File quizFile=new File("quizzesquiz1.xml");
File quizFile=new File("quizzesquiz1.xml");

But getting FileNotFondException , how can I refer to these files.What path should I point to.

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Apr 21, 2014

I got a question in my last interview, its all about multithreading, interviewer asked me to write a program, to write the contents of three files(F1,F2,F3) in to a new File F4, using multithreading , first thread should read the first file and second thread should read second file, so the File F4 should contain F1's contents in first then F2's contents after that etc. I tried to give my best shot, but i couldn't get a way to ensure that the first thread is reading the first file and write to F4 then second thread reading the second file and writing once first file is written completely into F4 and so on ..how to do this?

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Apr 14, 2014

I am trying to write a program that read from a csv file called matches.csv.

A single football match can end with a win or a draw: in first case the winner team get 3 points and the loser none, in the second case of draw each of the two teams get 1 point.

For example, the first line of the file matches.txt is as follow:

In the file it contains the following data.

17/08/2013 Arsenal Aston Villa 1 3
24/08/2013 Aston Villa Liverpool 0 1

This means that a match has been played on the 17/08/2013 where Arsenal scored 1 goal while Aston Villa 3 goals: thus Arsenal got 0 points while Aston Villa 3 points.

How can I structure my output to make it make it read

Position Team Played Points

1 Aston Villa 2 3
2 Liverpool 1 3
3 Arsenal 1 0

Java Code:

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class Teams
{
public static void main(String[] args)
{
String fileName = "matches.csv";

[Code] ....

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Nov 8, 2014

I am quite new to Java. I have downloaded a tictac example Java applet code and I run it on Eclipse with no problems. But when I try to test it outside Eclipse by doing the following:

I copy the .class file and two gif-images to another location and call the Java from html code:

<applet code="hello/HelloWorld.class" WIDTH="300" HEIGHT="300">

And I put the two gif-files to hello/images folder. I get and an error:

AccessControlException
access denied ("java.io.FilePermission")
"I:ImportantProgrammingWebProgramminghelloim ages
ot.gif" "read")

The path seems to be correct. I load the pictures from the Java code by:

notImage = getImage(getCodeBase(), "http://www.javaprogrammingforums.com/images/not.gif");

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I have a Windows XP. I also tried to run it inside XAMPP server folder in my machine but the same problem. How could I be able to run it on my machine?

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Feb 27, 2014

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import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import javax.xml.parsers.DocumentBuilder;

[Code] .....

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Apr 23, 2015

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1
2
45
667

77
34

and then store these values in int[] array

What I want is I Save all these values in a File and at Run time pass path of that file to command line arguments and then int[] array will be initialize using that

something like this [URL]

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package xmlexcel;
import org.apache.poi.hssf.usermodel.*;
import java.util.ArrayList;
import java.awt.List;
import java.io.*;
import java.util.ArrayList;
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import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;

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I'm currently learning about Swing but I can't get my head round this piece of the code. Here is a simplified gui (not interested in the gui part but the execution)

public class SwingDemo implements ActionListener {
SwingDemo(){
JFrame jfrm = new JFrame("Simple gui pro");
//rest of code
public static void main(String[] args) {
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I get the above, create a new instance of SwingDemo in the main thread which starts up the gui through the constructor. However, then the tutorial says that I should avoid doing the above but do this instead:

public class SwingDemo implements ActionListener {
SwingDemo(){
JFrame jfrm = new JFrame("Simple gui pro");
//rest of code
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() { //why do this instead?
public void run(){
new SwingDemo();
}
});
}
}

Reading, it talks about an event-dispatching thread which has completely lost me... Why not just instantiate the object directly instead of creating another thread?

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Thread th2 = new Thread (IntSortlist2);
try
{
th1.start();
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[code]....

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Here is the code

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JApplet;
import javax.swing.JButton;

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In a program I created, I'm using a text file that contains some texts needed for the program. The method relevant to this is something like the following.

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Random rand = new Random();
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[Code]...

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