Reading From A Separate Config File

Jul 30, 2014

I am trying to create a bukkit plugin. I need to be able to read from a separate config file but do not know how.

I am trying to use a JSON parser to read from a file but I only need a specific line of the file. Would this work?:

JSONParser parser = new JSONParser();
Object obj = parser.parse(new FileReader("/plugins/easyRace/config.yml"));
JSONObject jsonObject = (JSONObject) obj;
String Races = jsonObject.get(var "Races:");

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Cannot Rename Config File

Mar 3, 2014

When I am trying to rename a config file, ApplicationEdition.txt, I am getting pop up window message "This action can not be completed because the file is open in Java(TM) Platform SE Binary. Close the file and try again." What does this message mean ? How do I close this file, if I don't see it open anywhere ? This file has been used when a cmd was executed, but that cmd has run successfully and its not stuck anywhere then how can this file still be open ?

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Get Data From Config File And Store In Array Without Using Split Method

May 8, 2014

How i can get the data from a file, for a key that have multiple values without using split method and i want to store that data in an array

file name:"new.txt"[contains below data]
Name=google.com, yahoo.com,facebook.com
Attachment=abc1,abc2,abc3

I am successfully able to do this using following code

Properties props = new Properties();
String configFilePath = (Cjava_confignew.txt);
props.load(new FileReader(configFilePath));
String TestName = props.getProperty(Name);
String test[] = TestName.split(,);

Now i just want to store the values for key "Name" in array without using TestName.split(,); but i am not able to do this.

I have also used .yml file to avoid this but did not succeed, some way to do this

file name test.yml

Name
-google.com
-yahoo.com
-facebook.com

Attachment
-abc1
-abc2
-abc3

i want to store multiple values for single key(Name) within the array

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Logging In Separate File

Oct 14, 2014

in log4j,in a web aplication i need loging in separate file,logging for action package in one file and dao in another file in action package log a class if this is possible in a class then a level in a file another level in another file.

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JavaFX 2.0 :: Pop Up Using Separate FXML File

Feb 23, 2015

I have created an application in SceneBuilder, and want to call a pop up (also created separately in scene builder) when a certain button is pressed. How?

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How To Separate Numbers In A File And Put Leading Zeros

Nov 15, 2014

I am writing a program that adds together large integers. I have to store each integer in an array of digits, with one digit per array element. Array length is 50 so integer is 50 digits long. I have to store numbers in right-shifting format with leading zeros. For example,

0000000000000000000038423
0000000000000000000000027

Sum.txt contains numbers to be added. There could be one or more numbers per line.each line must be read as string with next() since it's assumed to be a very long number. String of digits needs to be converted into an array of 50 digits. Method CharAt and Character.getNumericValue will be useful. All numbers in each line are to be added. There are no negative numbers and individual number might be 0 or answer might be 0. Answer is always 50 digits or fewer.

BigDecimal or BigInteger are not allowed.

I'm lost where it says to put number with leading zeros in a 50 room array. How do I add numbers after formatting numbers with leading zeros?

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I/O - Read 11 Values From A Text File / Each Value On Separate Line

Mar 26, 2014

So I'm trying to read 11 values from a text file, each value on a separate line. The first value I use as loop control to run through calculations on the other ten and finally output both the numbers and the calculations to the console and an output file. I'm not getting a compiler error or a runtime error but my loop seems to stop after reading the first line. It also doesnt seem to be writing to my output file but does create it when I run the program. This is what my text file looks like

10
150.4
88.4
-3.14
499.4
799.4
1299.8
0
1900.2
901.7
4444.4

This is what my program looks like

import java.util.*;
import java.io.*;
 public class assignment7scratch
{
  Toolkit_General toolKit = new Toolkit_General();
  public static void main (String[]args)throws IOException

[Code] .....

so I dont get an error but this is what my output looks like

----jGRASP exec: java assignment7scratch

This program reads a list of values representing number of miles driven by individuals. It will output the dollar amount their rental cars cost.

Number of miles traveled on the left as well as amount reimbursed on the right

-----------------------------------------------
Miles Driven Amount reimbursed
150.427.072

----jGRASP: operation complete.

it also doesn't write anything to my output file, though it does create one.

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Adding Data File Into Two Separate 2D Arrays In Java

Apr 27, 2014

I am having some trouble with a Java program. I have a txt data file, which I will display, that I need to add into two separate arrays. The text file is 8 lines long that is supposed to go into two separate 4x4 matrices. A little background info on this program, reads in two arrays, compares them and outputs the largest elements of the same index and outputs them in a separate array. I somehow cannot seem to figure out how to do this. My code is below:

Data File:

2 7 6 4
6 1 2 4
9 7 2 6
8 3 2 1
4 1 3 7
6 2 3 8
7 2 2 4
4 2 3 1

Code:

public class prog465a {
public static void main(String[] args) {
Scanner inFile = null;
try {
inFile = new Scanner(new File("prog465a.dat.txt"));

[Code] .....

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JRE :: How To Read Deployment Config Properties

Mar 4, 2015

How do I get java to tell me what it thinks the current deployment configuration properties are? I'm aware of Deployment Configuration File and Properties and see it tells me what the values are,  how to set them, etc.  But what I want is a way to run java and have it cough up what it's currently using.  Something like 'java -display-config-properties' and have it spit out all current values it's using.

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How To Add JAR And Config Files To CLASSPATH At Runtime

Jan 23, 2015

During runtime, I need to load the JAR files and relevant config files( .cfg files and .properties file) into CLASSPATH and run a specific java program from one of the JAR which is available in CLASSPATH.

Any relevant Java API details or a sample java program to implement the above use case.

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Reading Text File Into Object Array And Create Random Access File

Dec 9, 2014

I am working on a project that requires me to build a database with random access file, representing products, the base product contains a name (about 30 characters), a price (double), and a quantity (integer). I have worked on this project for probably 15+ hours and have tried so many things and feel like I've barley made any progress...

The part i am really struggling with is taking the data from the text file and creating an object array with it using the product class. Once ive accomplished that, i have to use that data to create a random access file with the data. Here is the base Product class that must be used to create the objects for the array.

public class Product
{
public String pName;
public String stringName;
public double price;
public int quanity;

[Code]...

these continue for about 40-50 entries, they are not seperated by a blank line though i had to add those so it would display correctly, each entry is on its own line with name seperated with spaces, then price after a comma, then quanity after the second comma.....

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Reading Text File Into Object Array And Creating Random Access File?

Dec 8, 2014

I am working on a project that requires me to build a database with random access file, representing products, the base product contains a name (about 30 characters), a price (double), and a quantity (integer). I have worked on this project for probably 15+ hours and have tried so many things and feel like I've barley made any progress...

The part i am really struggling with is taking the data from the text file and creating an object array with it using the product class. Once ive accomplished that, i have to use that data to create a random access file with the data.

Here is the base Product class that must be used to create the objects for the array.

public class Product
{
public String pName;
public String stringName;
public double price;
public int quanity;
//Constructor
public Product( String pName, double price, int quanity )

[code]....

and then here is the data from the text file that i must extract to use to create product objects.

Dill Seed,938,34

Mustard Seed,100,64

Coriander Powder,924,18

Turmeric,836,80

Cinnamon (Ground Korintje),951,10

Cinnamon (Ground) Xtra Hi Oil (2x),614,31

Cinnamon (Ground) High Oil (1X),682,19

these continue for about 40-50 entries, they are not separated by a blank line though i had to add those so it would display correctly, each entry is on its own line with name separated with spaces, then price after a comma, then quanity after the second comma.....

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Reading CSV File

Jan 18, 2014

I have a CSV file with 16K entries of a data table. Does Java work well with CSV file? So I found this code. And it seems its quite easy to read in the data I need. Say for example if I wanted a loop to randomly pick the first field of a specific line in the CSV data table. How would i go about coding that??????

package cvs.test;
 
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
 
[code]....

The CSV looks like the above. and I basically would like to read in the Hand to get it to show in a text box and then randomly have the program ask me to correctly identify the True/False return for one of the SB/BB/UG/MP/CO/BN columns.

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Reading A File Header / Hex?

Mar 3, 2013

how to get the first few hex symbols of a file in java, for example if i input a pdf into my coding i want my program to output, e.g "25 46 44 38" ....

I have been able to print out the hex of a whole file but not managed to set a maximum read limit so that my code only takes a certain amount of values ....

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BNF Grammar And Reading From A Txt File?

Mar 21, 2014

I am implementing a recursive descent parser that recognizes strings in the language below. The input should be from a file "input.txt" and output should be to the console.

The grammar:

A -> I = E | E
E -> T + E | T - E | T
T -> F * T | F / T | F
F -> P ^ F | P
P -> I | L | UI | UL | (A)
U -> + | - | !
I -> C | CI
C -> a | b | ... | y | z
L -> D | DL
D -> 0 | 1 | ... | 8 | 9

An example session might look like this:

String read from file: a=a+b-c*d

The string "a=a+b-c*d" is in the language.

String read from file: a=a**b++c

The string "a=a**b++c" is not in the language.

Java Code: /**

* The Grammar
* A -> I = E | E
*E -> T + E | T - E | T
*T -> F * T | F / T | F
*F -> P ^ F | P
*P -> I | L | UI | UL | (A)
*U -> + | - | !

[code]....

My current output looks like this:

Java Code: The string read from file: a=a+b-c*d

The string "" is not in the language. mh_sh_highlight_all('java');

So it seems to be reading the input file correctly. My error seems to be on this part

Java Code: s = args.length == 1 ? args[0] : ""; mh_sh_highlight_all('java');

When I put the string in that line such as: s = args.length == 1 ? args[0] : "a=a+b-c*d";

My output is:

Java Code: The string read from file: a=a+b-c*d

The string "a=a+b-c*d" is in the language. mh_sh_highlight_all('java');

How can I go about it reading the string from the input file though?

Also, I am not too sure my boolean functions for P, I and, L are correct. Mainly when two terms are together (UI, UL, CI, DL).

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Reading Content From FTP File?

Jan 27, 2013

I am trying to read a content of file downloaded from ftp and return it as a String. This is what I use:

Java Code:

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.net.ftp.FTPClient;
public class Test {
public static void main(String [] args) throws IOException{
FTPClient ftp = new FTPClient();

[code]....

The code does not work, although all the links are correct.

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Reading From A File - While Loop

Oct 22, 2014

I have to read from a file that is formatted like that :

name
status
friend
END
name
status
friend
END
.. etc

could be more than one line of friends, which where I have my problem. I can't get it to check if after the friend name the word "END"

I have tried to write a while loop inside the main while loop but it didn't work, and now I have tried to check that in a separate function which it also failed, thats my two while loops

BufferedReader br = null;
FileReader fr = null;
int getLine = 0;
try {
String line;
fr = new FileReader(fileName);
br = new BufferedReader(fr);

[Code] .....

Most of the time I got nullPointerException or missed up order for printing the file !!

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File Reading / Writing

Sep 9, 2014

I've looked at multiple sources and everyone is saying different stuff. Which one should I be using? FileWriter/FileReader, other people was saying PrintWriter, and one even said : "Formatter" which is the one I'm doubting mostly. My purposes for writing files is for like saving maps, saving high scores, etc.

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Not Reading Entire File

Mar 29, 2014

I'm new to Java and have not been able to figure this out. I'm reading a text file that contains this:

110001 commercial 500000.00 101
110223 residential 100000.00 101
110020 commercial 1000000.00 107
110333 land 30000.00 105
110442 farm 200000.00 106
110421 land 40000.00 107
112352 residential 250000.00 110

The output goes to a text file and should look like this:

COMMERICAL

FARM
LAND
RESIDENTIAL

101 600000.00
105 30000.00
106 200000.00
107 1040000.00
110 250000.00

I'm creating the output file, but it only contains the categories and not the details below them. Cant seem to figure out why.

Java Code:

package propertylistings;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;

[Code] ....

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Reading From A Txt File Using A Loop

Oct 6, 2014

I am trying to read from a text file that has that contains a list of stock tickers and pairs letting the user choose a ticker and provide analysis of stock. Given a ticker from the user provide

1) the max price, the min price and the avg price of the stock from all lines in the file.
2)Additionally the user should be able to find the stock with the highes price as well as the lowest price in the list.
3)lastly the user should be able to specify a different filename for the stock file.

Im trying to do part 1 and I am having trouble trying to read the whole text file and outputting the stock price with the max,min and avg. Am I heading towards the right track at least? Keep in mind I have just attempted trying to read the text file I have and not tried to find the max or min or avg Right now my code is crashing when I enter the stock ticker that is my primary concern.

package hw01b;
import java.util.Scanner;
import java.io.*;
public class Hw01b
{
static Scanner in = new Scanner(System.in);
static Scanner console = new Scanner(System.in);

[Code] .....

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Reading The Name Of The File From The Keyboard

Feb 20, 2014

Write a program that extracts words from a file. For the purposes of this program, a word is defined as a series of adjacent letters. Only print words that are at least four and no more than 12 letters long. Print each word on a different line.

The program should read the name of the file from the keyboard.

************************************************** ************************************************** **************

I need to get the filename from the user for this particular program. Usually I would have the name of the file prewritten into the source code like this....

Scanner input = new Scanner(new File("gettsy_burg.txt");

I tried different ways but I just can't seem to figure it out.... I guess what I'm really asking is how to rearrange Scanner input = new Scanner(new File("gettsy_burg.txt"); since I want the user to input the filename instead of the filename being prewritten by the programmer(me).

This is what I have so far to let the user for input....

Scanner keys = new Scanner(System.in);
System.out.println("Enter the filename: ");
String fileName = keys.nextLine();
keys = new Scanner(new File(fileName));

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Reading Text File

Feb 28, 2014

I'm trying to read a .txt file and put each line in a array of strings but it's not working! What is wrong with this code?He stops in "while" loop.

import java.io.File;
import java.io.FileReader;
import java.io.BufferedReader;
import java.lang.Character;
import java.lang.String;

[code]...

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Reading Name Of File From Keyboard

Feb 20, 2014

Write a program that extracts words from a file. For the purposes of this program, a word is defined as a series of adjacent letters. Only print words that are at least four and no more than 12 letters long. Print each word on a different line.

The program should read the name of the file from the keyboard.

************************************************** ************************************************** **************

I need to get the filename from the user for this particular program. Usually I would have the name of the file prewritten into the source code like this....

Scanner input = new Scanner(new File("gettsy_burg.txt");

I tried different ways but I just can't seem to figure it out....

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Reading And Writing To A File

Jan 10, 2014

I have accountsData.txt file in my default package, this is the file it should be writing to and reading from.

There is an ATM class, which has the main in it. From here the program is supposed to work like an atm, you type in your account number and can withdraw or deposit. It is supposed to then write the changes to the file.

//Read from a file.
public void loadAccounts(String inputFileName) throws IOException
{
Scanner fin = new Scanner(new File(inputFileName));
// Variables to store the values.[/color]
int account = 0;
double balance = 0.0;

[Code] .....

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Reading Off A Text File

Apr 26, 2010

What I am trying to use this code for is to scan the files for a match that was typed with the corresponding name. here is what i have:

import java.util.Scanner;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

[code]...

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Reading A File And Methods

Mar 18, 2015

package project3;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
 
[code]....

method countMail!! Also the text file you are reading from is attached as ampo_uumail.txt and i also have a picture of the output.

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