How To Open And Edit Text Files In Java

May 13, 2014

I just went over how to open and edit text files in java. Was wondering how to open mp3, mp4 and other media files, is there a special package i need to import or plugin that I need to install in eclipse?

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Using Text Edit On Mac And Using Terminal To Execute Java Code

Aug 7, 2014

So when writing my first "Hello World" app everything seemed to work just fine. I wrote the code, compiled it, and then ran the class file and it worked, I got the return Hello World! But when I tried to write another app which is basically the exact same thing just a different sentence, I keep getting a bunch of error codes saying illegal character. I did everything the exact same. I am using Text Edit on a Mac and using Terminal to execute the Java code.

Here is what I wrote....

public class MyFirstApp
{
public static void main( String[] args )
{
System.out.println(“i rule the world!”);

[code]...

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Create Multiple PDF Files And Open Them At Once From Java Application

Aug 30, 2014

I am using itext to create pdf files , i have filtered some records (preferably i can say around 90) which has the option to open pdf for individual record. Now I need to open all the pdf's of filtered records on a single click , without asking for a open dialogue box. How to go about this ??

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Make Edit Text Validation For Android

Nov 22, 2014

I am currently developing an android application. there is a problem i got just now. here's the code for java.

public class doReceipt extends Activity
{
boolean nsPutih, nsBeriyani,nsMinyak,aymKurma,aymLemak,aymKari,aymRendang,aymMerah,
prtAsam, dggTomato, dggSinggang, dggMerah,kerabuTaugeh, pindangKacang,jelatah,dalcaSayur,papadom,
kariIkan,ikanMasin, sirapAis, oren,tehTarik,agarAgar, buburKacang,kuih, price;

TextView tvOutput1,tvOutput2, tvOutput3, tvOutput4, tvOutput5, tvOutput6, tvOutput7, tvOutput8, tvOutput9, tvOutput10,

[Code] ....

There is no error shown in the code. but, when i run my program for start, the page before cannot proceed and yet, i cannot proceed to this page and the application stop unexpectedly. below is the error that i gain in logcat.

11-22 06:59:57.664: D/dalvikvm(290): GC_EXPLICIT freed 1505 objects / 106560 bytes in 184ms
11-22 07:00:39.174: D/dalvikvm(320): GC_FOR_MALLOC freed 2489 objects / 160496 bytes in 109ms
11-22 07:00:39.534: E/MENU PAKEJ A(320): Total Price: RM 0.0
11-22 07:00:39.544: D/AndroidRuntime(320): Shutting down VM

[Code] .....

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JSP :: How To Show Data In Text Box When Click On Edit Button

Mar 22, 2014

i want to know how to data show in text box according click edit button.this is jsp file.

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page import="java.sql.*,java.util.*"%>
<%!ResultSet rs = null;%>

[code]....

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GUI Text Editor With Edit And Format Functions - Scroll Pane

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The program below compiles and functions correctly for the most part. It is supposed to be a simple GUI Text Editor with Edit and Format functions. The content pane is supposed to be a scroll pane, however no matter how much I type into the editor, the scroll bar does not appear. Also, the none of the functions under the "Edit" menu work.

Java Code:

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import java.util.StringTokenizer;
import java.util.regex.Pattern;

/**
* A simple text editor. It creates and displays the GUI Text Editor.
*/
public class TextEditor extends JFrame implements ActionListener

[Code] .....

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Create A Jar File That Would Open 3 Other Jar Files

Jan 13, 2015

I was just wondering how would I create a jar file that would open 3 other jar files when I open the jar file with my batch file it and when I type stop in the batch file it will out put the stop command into all 3 of the other jar files.

This is for my Minecraft server so I can launch them all at the same time and inStead of having to enter the commands in all the server batch files I just have to do the command in 1 I know their is things like multi craft to do this but I want the code so I don't have to use multicraft.

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Java GUI Text Files Output

May 28, 2014

try {
String hour = (String) comboBox.getSelectedItem();
String filename = fileName.getText();
String date = ((JTextField)dateChooser.getDateEditor().getUiComponent()).getText();
String text = txtKeyword.getText();
String newline = "";
String directory = Directory.getText();
File path = new File(directory);

[Code] ....

**Here is my question. I'm trying to use input and loop method to search for a file. The above code works but my problem is lets say I try to find 2 different text files**

1. billing-20140527[09].txt has

a)XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b)XGMS,2034-05-27 30:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

2. billing-20140527[10].txt has

a)XCGS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b)HELO

I try to find the number 1 in both text files, if lets say I input the text file name is billing, I can find the number 1 in both text file and output them:

a) XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
B)/> XCGS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

However, if I specify the text file name: billing-20140527[09].txt and find the number 1 inside the text file, it will only output:

a) XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

How can I do so? Because I can output the number 1 from both text files even though I specify the name.

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How To Open Files When In Classes Instead Of Main Code

Mar 18, 2014

I have looked over other people code relating to files that are related to my actual studies in class. My teacher hasn't worked on a lot of file problems so I want to gain some understanding on it.

1.) I have this class with variables declared

import java.io.*;
public class FileDisplay {
private String filename;
FileWriter outputfile;
File Inputfile;

I'm aware that having a private variable would not allow that variable to be accessed outside the code. Vice versa, public variable would do that. The FileWriter and the File Inputfile is something I don't understand, especially have them in classes. What is the purpose of them?

2.)

public class FileDisplay {
private String filename;
FileWriter outputfile;
File Inputfile;
 
[Code] ....

I have made this code here that opens the output and input file. If I make another method, how would I display the text onto that same file. Hard to clarify for me, but in each method do I just keep creating :

FileWriter outputfile=new Filewriter(filename)

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Nov 19, 2014

I want to write a little java program that when ran it will add information to my host file. A screen will pop up with a button on it. When you click the button it will add a few ip to domain connections. In order to edit the host file with notepad you must first give notepad admin privileges. I can't find a way to do this and I'm extremely fresh to programming. Is there a way I can write directly to the file or is there a way to run notepad with elevated privileges?

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Recursively Find Text In Text Files

May 29, 2014

Java Code:

if(Directory.getText().matches("")){
JOptionPane.showMessageDialog(null, "Please search for the directory");
}
else if(fileName.getText().matches("")){

[Code].....

This is actually my question:

Java Code:

1. billing-20140527[09].txt has

a)XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b)XGMS,2034-05-27 30:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

2. billing-20140527[10].txt has

a)XCGS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b)HELO

[B]I try to find the number 1 in both text files, if lets say I input the text file name is billing, I can find the number 1 in both text file and output them:[/B]

a) XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.
b) XCGS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040.

[B]However, if I specify the text file name: billing-20140527[09].txt and find the number 1 inside the text file, it will only output:[/B]

a) XGMS,2014-05-27 10:08:04,122,PLAYER_VERIFY,VERIFY to LBA,0x580000,0xC0000,253040. mh_sh_highlight_all('java');

So far, I can't get this program to run,

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How To Create Java Files Into Windows Applications (Exe Files)

Oct 26, 2014

What step to know to develop software..

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Reading Files From A Text File

May 26, 2014

So I have a text file, and I want my Java program to store names from the text file. How do I do that? This is what I have so far.

Java Code: import java.util.Scanner;
import java.io.File;
BingoCard[] cards = new BingoCard[n]; //Array of BingoCard objects, n being the length of the Array
Scanner sc = new Scanner(File("Names")); //Names is the name of the file
for(int c = 0; c < cards.length; c++)
cards[c] = new BingoCard(sc.nextLine); mh_sh_highlight_all('java');

Here's the constructor.

Java Code: private string myName;
public BingoCard(String name)
{
myName = name;
} mh_sh_highlight_all('java');
Whenever I compile, I get this error message.

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How To Write Stuff Into Text Files

Oct 28, 2014

I'm refitting a snippet of code I found on the net to write stuff into text files. After a bit of fiddling, here's what the code looks like in one of my classes:

public void addItem(String Item){
try{
Writer out = new OutputStreamWriter(fos, "UTF8");
out.append(Item);
out.flush();
// out.close();
}
catch (IOException e) {
System.out.println(e.toString());
}
}

The original snippet included the close() method. However, when I tried to do a test run writing multiple lines, I'd get an IOException about the stream being closed. I removed the close() method line, everything seems to work the way I want it, but I just wanna know if there's anything I'm missing out on by not having the close() method anywhere, especially when the IDE finds it important enough that it lit a warning about the stream not being closed somewhere as I was repurposing the original snippet.

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How To Read Only Text Files In A Directory

Apr 30, 2015

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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Split Text File In Multiple Files

Jun 17, 2014

I have multiple text files that contain several docs. my files look like this:

<doc id 1> some text </doc>
<doc id 2> some more text</doc>
...

As output I want to extract the text between the tags and then write the text into several files like 1.txt, 2.txt ......

here is my code so far:

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

[Code] ....

I can not seem to get around how to print the text into several files.

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Sep 1, 2007

Why is it simple for a word processing software (one that reads number of words, words greater that x characters etc) to deal with text file(.txt) and not with a doc file (.doc) file?? Is there any special requirements or what are the points taken into consideration while developing the software for a .doc file?

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Importing And Creating Objects From The Text Files?

May 25, 2014

I've been trying to write a program for some time now, but im encountering problems while trying to complete it. The program has a student class and a course class (set up with some info about the class, like #, professor name, course title, course time). Now, i have a text file in the workspace, and i have to import the data from the textfile, and thats just what i did, but then there is an option which allows the user to delete a course only by inputing the course number, and when he does that, the program outputs the course's name, and confirms the deletion of the course (From the student's record, i created a vector for that and imported all the courses from the text file). But how can i let the program know what's the name of the course when the user inputs the course number ???

When the data is read from the file, objects should be created and added to the student's course record. <- i think here's where i messed up ? i imported the data, but how can i actually make them objects before adding them into the vector ?

PHP Code:

public static void main(String[] args) throws IOException
{
Scanner scan = new Scanner(System.in);
Vector Record = new Vector();
try {FileReader filereader = new FileReader("CLASSES.txt");
BufferedReader bufferedreader = new BufferedReader(filereader);
String test = "";
while(test != null)
{
Record.addElement(test);
test = bufferedreader.readLine();
} mh_sh_highlight_all('php');

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Nov 15, 2014

I am trying to split the contents of the text file and assign the value on the left of the separator to a variable and the value on the right of the | separator to another variable. Thus I tried out a sample code to print all the values in the split [] first, and ended up with problems. This is the content of the text file:

Crazed Boy|20
Hello|5
MSB|6.5

public class Main {
public static void main(String[] args) {
try {
BufferedReader infile = new BufferedReader(new FileReader("test1.txt"));
for (int i =0; i < 3 ;i++) {
String s = infile.readLine();
String[] ss = s.split("|");

[code]....

I keep getting IOException in my sample code, why is this so ? I assumed the split() method is supposed to output for the 1st iteration:

ss[0] = Crazed Boy
ss[1] = 20

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The player will have 60 seconds, and for each correct answer, will score 1 point and add 2 seconds to the timer. The player will also have 6 "lives", and for each incorrect answer, the player will lose a life, with no effect on the time.

The idea of the game is that the player memorise as many of these medicine codes as possible.

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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.URL;
import java.io.*;
import javax.imageio.*;

[code]....

how to add an open file button so I can search for the file and then open it into my program.

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I've come up with this so far.

import java.io.FileInputstream;
import java.io.FileNotFoundException;
import java.io.IOException;
public class JavaApplication43{
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[code]...

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String run = "c:
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