Parsing Data From Files?

Apr 5, 2014

I am suppose to display some information from some text files I tried to do that but the output gives me information from one text file and not information from all text files.

public static void main(String args[]) throws IOException {
String occupations;
double unemployRate_By_Occupations_2008;
double unemployRate_By_Occupations_2009;
double unemployRate_By_Occupations_2010;
//declare the file object and open the file "occupations.txt";
File myFile = new File("occupations.txt");

[code]....

The first text file is:

2.5
3.3
2.6
3.1
2.4
2.7
2.6

[code]....

the second text file is:

4.6
5.7
5.2
6.9
4.5
4.3

[code]....

The third text file is :

4.8
5.6
5.2
6.2
4.6
4.6
2.7

[code]....

Reason for edit:: Renamed title to be more descriptive, added code tags, and removed font formatting

View Replies


ADVERTISEMENT

Parsing Files From Directories And Store Them In Hashmap

Jul 15, 2014

I have a query regarding parsing a directory, its subdirectories and files of directories. i am using File Object to load absolutepath of main directory and checking file is a directory or file but not geeting exact solution what i want. Suppose directory structure is D:TestPC

PC is a directory and have 2 files test.txt test1.txt and one directory
PC1 directory contains 2 directories PC2 ,PC3 and each PC2 and PC3 have some files.

Now my query is : i want to store each directory in HashMap and its files corresponding to its directory. E.g.:

D:TestPC ---> D:TestPC est1.txt , D:TestPC est2.txt
D:TestPCPC1---> Null
D:TestPCPC1PC2 --->D:TestPCPC1PC2 est1.txt, D:TestPCPC1PC2 est2.txt

like this, where first directory path as key and files are its values.

View Replies View Related

Parsing CSV File - Column And Row Data?

Dec 19, 2014

I am trying to merge two files together using the Apache Commons CSV library. I figured it was easier to use this than to write my own implementation.

The first problem is that the output contains the underlying class logic and as a results my output contains a bunch of un-needed data. How do I get rid of this? I just want the column and row data, nothing else.

Example

I want this:

customerNo, firstName, lastName, birthDate, mailingAddress, married, numberOfKids, favouriteQuote, email, loyaltyPoints
1, John, Dunbar, 13/06/1945, 1600 Amphitheatre Parkway Mountain View, CA 94043

But I get this:

CSVRecord [comment=null, mapping=null, recordNumber=1, values=[customerNo, firstName, lastName, birthDate, mailingAddress, married, numberOfKids, favouriteQuote, email, loyaltyPoints]]
CSVRecord [comment=null, mapping=null, recordNumber=2, values=[1, John, Dunbar, 13/06/1945, 1600 Amphitheatre Parkway
Mountain View, CA 94043

The second problem is that I just want the row Headers from the first file, but the row headers from my second file are still being included in my output. I used withSkipHeaderRecord(true), but it didn't have the desired results.

Code is below.

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Reader;
import java.util.ArrayList;

[Code] .....

View Replies View Related

Data Getting Overridden On Loop After Parsing A Xml

Mar 14, 2015

I have an xml with 'n' number of data which i am parsing,for test i hardcoded without looping has below,now the below line is just parsing and showing the data for index '1' ,i need to loop this and i am not sure how can i do this.How do i find the length of obj and loop,i cannot find any method in SoapObject.I used like below but the data is getting overridden after parsing

for(int i=0;i<obj.getPropertyCount();i++) {
KSoap2ResultParser.parseBusinessObject(obj.getProp erty(i).toString(), getReminder);
}
call in another class
public static void parseBusinessObject(String input, Object output) throws NumberFormatException, IllegalArgumentException, IllegalAccessException, InstantiationException{

[code]...

View Replies View Related

Parsing Binary Data To ASCII With JavaCC

May 23, 2014

I want to make a parser from binary to ASCII with JavaCC or another Compiler Construction with Java. I don't know how to start.

View Replies View Related

Extract Data From Two Different Files?

Feb 13, 2015

how can I extract data from two different files but produce one output. For example, the first three columns are from text_file_1 and the last column (the last foruth column of the output) is from text_file_2.

View Replies View Related

Storing Data Of Particular Class In Files

Jul 29, 2014

I need to store the data of a bunch of objects of a particular class in files in a predefined directory. Later, I want to get all the files from the directory and turn them into the objects again. Ideally, I'd like to have one file per object and have the files be human-readable and editable without too much difficulty. The class used by the objects will likely be subject to change in the future, as well. To keep things simple, all the data members are either primitives, Strings, or arrays of them. What is the best library/API to use to deal with this situation? Or should I write my own classes for these operations?

I read into serialization, but I read that it doesn't deal well with classes that are frequently modified. I also found articles on Preferences, but none of the ones I saw seem to explain how to best handle reading and writing to and from multiple objects, especially when I don't know a prior all the objects that were written to disk.

View Replies View Related

Read CSV Files And Organize Data In Java?

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]....

View Replies View Related

Read CSV Files And Organizing Data In Java

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] ....

View Replies View Related

Create Individual XML Files From Parsed Data Output Of XML File?

Feb 26, 2015

I have written a program (DOM Parser) that parses data from a XMl File. I would like to create an individual file with the corresponding name for each set of data parsed from the xml document. If the parsed output is Single, Double, Triple, I would like to create an individual xml file (Single.xml, Double.xml, Triple.xml)with those corresponding names. How do I create the xml files and give each file the name of my parsed data output?

import java.io.IOException; 
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;

[code]....

View Replies View Related

Application Web Java To Insert Data Into Database Oracle From XML Files

Oct 27, 2014

I want to create an application wich can handle xml files ( display xml files's data on a html page) + insert those data into an oracle database.

I'm new to that, it a project for my internship. wich API is the most appropriate for that ( Jdom or Xstream or other), wich framework i can use ( there is only 3 IHM : connexion, upload file, display data, confirmation insertion data)?

View Replies View Related

3 Different Files Using Encapsulation (Data Hiding) - Object Creation Error

Mar 21, 2015

I have my code in 3 different files using encapsulation (Data hiding) and i have 1 problem at the very end of my code in my if and else statement (very bottom) when trying to call the classes from the other 2 documents. I will put the code in 1st document to 3rd document.

// FIRST DOCUMENT
public class CollegeCourse { //class name
//variables
String deptName;
int courseNum;
int credits = 3;
double fee;

[Code] ....

UPDATE: error message is

UseCourse.java:24: error: cannot find symbol
LabCourse lc = new LabCourse(department, course, Credits);
^
symbol: variable department
location: class UseCourse
UseCourse.java:24: error: cannot find symbol
LabCourse lc = new LabCourse(department, course, Credits);

[Code] ....

4 errors

View Replies View Related

How To Create Individual XML Files From Parsed Data Output Of XML File

Feb 26, 2015

I have written a program (DOM Parser) that parses data from a XMl File. I would like to create an individual file with the corresponding name for each set of data parsed from the xml document. If the parsed output is Single, Double, Triple, I would like to create an individual xml file (Single.xml, Double.xml, Triple.xml)with those corresponding names. How do I create the xml files and give each file the name of my parsed data output? 
 
import java.io.IOException;import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;import org.w3c.dom.Element;

[Code] ....

View Replies View Related

ArrayList Only Adding 1 Item Even Though There Are Multiple Items (Setting Data To Files)

Oct 25, 2014

I managed to retrieve data, and set data in my own ways in which I like. But my problem is, if the file does not contain anything (fully empty), when I try to use my

set("", "");

method, it only sets the last one that is called.

Example:

set("section1", "section1Item");
set("section2", "section2Item");
set("section3", "section3Item");

Only section3 would get set, and not the others.

Otherwise, if the file contained a section already, then each section (section1, section2, section3) would get set.

Here's how I set the data to the file:

public static void set(String section, String data) {
files.openFileWriter();
files.file.delete();
reCreateFile();
String beforeItem = section + ":" + files.dataList.get(section);

[code]....

And here is how a retrieve the data and set them to my arraylist/hashmap:

public void getData() {
String line = null;
openFileReader();
StringBuffer sb = new StringBuffer();

[code]....

View Replies View Related

How To Cache Data Reading From Collection Of Text Files In A Directory Using TreeMap

May 4, 2015

How can I Cache the data I'm reading from a collection of text files in a directory using a TreeMap? Currently my program reads the data from several text files in a directory and the saves that information in a text file called output.txt. I would like to cache this data in order to use it later. How can I do this using the TreeMap Class? These are the keys,values: TreeMap The data I'd like to Cache is (date from the file, time of the file, current time).
 
import java.io.*; 
public class CacheData {
  public static void main(String[] args) throws IOException {
  String target_dir = "C:Files";
  String output = "C:Filesoutput.txt";
  File dir = new File(target_dir);
  File[] files = dir.listFiles();
 
 [Code] ....

View Replies View Related

Process 10000 XML Files / Verify And Insert Data Into Database - Java Heap Memory Error

Oct 12, 2013

I need to process 10000 xml files and verify and insert the data into database. I am loading all the files in the file object and iterating one by one. I am getting the memory issue. How to handle this?

View Replies View Related

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

Oct 26, 2014

What step to know to develop software..

View Replies View Related

How To Attach External Files To Executable Jar Or Exe Files

Apr 13, 2015

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.

private String wordgen(){
try {
BufferedReader reader = new BufferedReader(new FileReader("src/Resources/adjectives.txt"));
Random rand = new Random();
int low = rand.nextInt(400);
String fil="";
int i=0;
while(i!=low){

[Code]...

The program runs fine in netbeans project but once the jar is created it does not corporate with the text file. ("null" is returned) How can I attach text files to jar and exe?

View Replies View Related

Parsing ID3 Tags?

Oct 28, 2014

I am getting :

Error ? java.lang.NullPointerException

I've placed the .mp3 file in the same directory as my project (where I've bin and src folders).

View Replies View Related

DOM Parsing Method

Feb 26, 2015

I've been staring at my code for the past few days and I just can't get it to work out. I'm trying to parse a DOM object with the following XML loaded:

<?xml version='1.0' encoding='UTF-8' ?>
<form>
<record event="boot" date="2013-11-01">
<text>system boot</text>
</record>
<record event="login" host="localhost" date="2013-11-01">

[code].....

I'm trying to get all of the attributes that I care about out of the <record> tags (date, event, etc ...) and stick the data in a wrapper class (DocumentData). If you run this, you'll see that it is close to working, but I'm having trouble getting the attributes in the <subject> and <return> tags (I need to get the errval and uid attributes).

View Replies View Related

Parsing A Value From A String

Jul 1, 2014

I'm simulating temp/humidity values and want to separate the string value reported and parse each part (left and right) for their respective values. However, I'm having trouble figuring out how to parse the right hand side of this string value, I can get the left using split (shown below), but I think split removes the right hand side of the string value.

the value reads "Temp=22.9*C Humidity=50.9%"
Java Code: private Double parseTemperatureFromString(String consoleOutput) {
String[] tempHumidParts=consoleOutput.split(" ");
String[] tempPart=tempHumidParts[0].split("=");
String theTemp=tempPart[1];
theTemp=theTemp.replace("*C","");
return Double.parseDouble(theTemp);

[code]....

View Replies View Related

XML Parsing Using XSLT - No More DTM IDs Are Available

Jul 1, 2014

I have use below code to parse the xml using xslt i am getting below error. 
 
package com;
 
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.*;
import java.io.IOException;
 
[Code] ....

I am getting below error ....
 
ERROR:  'No more DTM IDs are available'
javax.xml.transform.TransformerException: com.sun.org.apache.xml.internal.dtm.DTMException: No more DTM IDs are available
  at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:716)
  at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:313)
  at com.TestXSLT.main(TestXSLT.java:34)
Caused by: com.sun.org.apache.xml.internal.dtm.DTMException: No more DTM IDs are available

[Code] ......

View Replies View Related

Dates Parsing Related

Feb 1, 2014

I have a date sch_date_time=01/02/2014 08:00

And when i am doing SimpleDateFormat sdf = new SimpleDateFormat("dd/mm/yyyy HH:mm");

date1 = sdf.parse(sch_date_time);

when i am printing date1 it is printing as Wed Jan 01 08:00:00 IST 2014,but it should be printed as Sat Feb 01...

View Replies View Related

Reached End Of File While Parsing

Oct 23, 2014

public class DemoBlock{
public static void main(String[] args){
System.out.println("Demonstrating block scope");
int x = 1111;
System.out.println("In first block x is " + x);

[code]....

this is the error I'm getting..reached end of file while parsing. I think this is referred to as either an extra curly brace or that I am missing a curly brace but I'm not 100% sure.

View Replies View Related

ArrayList - CSV File Parsing

Nov 18, 2014

I have to read this CSV file into an arraylist. Arraylist i call weight. The data in the csv file has 200 double values which is the weight of all the 200 bananas. Since the csv file is a string i guess I cannot create an double arraylist from scratch, but i have to parse the csv file afterwards, right? Well this does not work and ill show you the code in a bit, just need to state all my issues.

My second issue is how to be able to print out the the weight items (in this case bananas) next to the weight of the bananas taken from the array? This has to be done by constructor i assume? I just dont know how constructors work with arraylists.

Id like it to look something like this in the output window.

Banana 34,55
Banana 43,55
Banana 23,74

and so on (200 times)

so these are my issues, how to parse and how to print the arraylist weights and the item banana in the output window with constructor. Here is the code.

package Main;
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.ArrayList;
import java.io.IOException;
import java.io.Serializable;
import javax.swing.JOptionPane;

[Code] ...

View Replies View Related

Easy String Parsing

Sep 1, 2014

I have a String formated in the same way as package names:"com.darkchanter.code.NameValue"..Now I need to extract "NameValue" - the problem doesn't actually block my stuff, but before I write my own code, I Wonder if there is a function already available...

View Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved