Writing To Text File - Print String On One Line

Oct 19, 2014

I am writing to a text file via user input and it is saving all the user input to the file but it is just printing one word per line. I would like it to print the string on one line and print the next string on the next line upon them hitting enter.

public void textFile() {
Scanner reader = new Scanner(System.in);
System.out.println("Enter file name: ");
String fileName = reader.next();
File f = new File(fileName);
PrintWriter p = null;

[Code] ....

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Search For A String In Large Text File Of 1 GB Size And Print Line When Match Found

Feb 18, 2014

I have a large text file of 1 GB size. I need to print the line when a matching word is found in a particular line. Below is the code I am using. But if there are many lines that has the matching word, it's taking lot of time. Any solution to print the lines much faster.

Scanner scanner = new Scanner(file);
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
if(line.contains("xyz")) {
System.out.println(line);
}
}

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Writing Text To File - How To Append New Line

Jan 11, 2015

How to output text to a file, so I had to do my own research on google, but the results I found were confusing. I finally got my code to write to a file, but I cannot figure out how to append a new line. I know what part of the code is incorrect, but I don't know how to fix it. here is what I have right now:

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Scanner;
 public class highscore {
public static void main(String[] args) throws IOException {

[Code] ....

I can see the last two lines are telling the program to overwrite the first input with the second. Of course if I pick a different file name for the second output, I get another file with the second input, but I need to learn how to append as well.

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Pickup Selected Text File And Read Line By Line And Output Text Into Visual Text Pane

Dec 12, 2014

I am checking how to do following task.

01. pickup the selected text file and read the line by line and output the text in to visual text pane.

what i did:.

01. I wrote code that read the text file and output in to jave console/ also some of the interface.

the code read txt file:

Java Code:

String fileName = "C:/Users/lakshan/Desktop/lawyer.txt";
File textFile = new File(fileName);
Scanner in = new Scanner (textFile);
while(in.hasNextLine()){

[code]....

so it will read any text file dynamically and output to the text pane in interface. I think scanner code must be execute after the select the file from the browser and set the scanned result in to variable. then later out put the var as string in some jswing component?

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Removing Specific Line From Text File That Contains Certain String?

Mar 8, 2014

So basically, if a line in a text file contains a certain string, that specific line will be deleted. It should probably be similair to this method?

Java Code:

/**
* Replace text.
* @param replace
* The text to replace.
* @param replaceWith
* The text to replace with.
*/
public static void replaceSelected(String replace, String replaceWith) {
try {
BufferedReader file = new BufferedReader(new FileReader("data/replacer.txt"));

[code]....

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Reading A Text File And Inserting Line Into String?

Dec 6, 2014

I am having issues insert each line of the simple textfile into a specific varible I want it to go to. For example my text file is ordered like this

Dallas
78 F
North, 15 mph
dallasimage
Denver
29 F
South, 10 mph
denverimage

and I want Dallas in city variable, 78f in temperature variable, and so on until text ends, at the moment is all goes into city variable, it all prints from there! I tried inserting it into an array but it would read all the lines previous to it in addition to reusing readline and all failed.

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
public class Textreader {
public static void main(String[] args) {

[code]....

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I/O / Streams :: Find Line Number In A File Using Multi Line String

May 5, 2014

My requirement is to find the line number using multiline string. Here I need to extract the string between FROM and where clause(from the below string) and need to find the line number in the file

SELECT HL.LOCATION_ID,HPS.PARTY_SITE_ID,HCAS.CUST_ACCT_SITE_ID
INTO LN_SITE_LOCATION_ID,LN_LOC_PARTY_SITE_ID,LN_CUST_ACCT_SITE_ID
FROM HZ_LOCATIONS HL,
HZ_PARTY_SITES HPS,

[Code]....

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Creating A Text File And Writing To It

Jul 19, 2014

There are several ways in Java to create a text file and write to it. But which is the most effective way among them? Any example with code?

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Writing Current Time To Text File

May 29, 2014

I'm working on a project for class that asks me to record punch-in and punch-out times for employees. However, I am having difficulty figuring out where I am going wrong as none of the information will write to the text file in the ArrayList that I have created. The code is as follows:

import java.text.*;
import java.util.*;
import java.io.*;
import java.nio.file.*;
public class TimeClockApp {
// declare class variables
private static EmployeeDAO employeeDAO = null;

[Code] .....

I want to keep the coding as simple as possible as I am new to Java, and have spent hours upon hours trying to figure this all out. The console output looks like this:

Welcome to the Punch-In/Punch-Out Screen

Please choose an option below:

I. Punch In
O. Punch Out
Choice: i

PUNCH IN
--------
Enter Employee ID:
8
8Punch-In Date & Time: 2014/05/28 22:44:26
[]
Press enter to return to the main screen:

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Writing Object To File And Then Read It In Text

Mar 18, 2014

I have problem with writing objects to file. The thing i want to do is write object(Measur) and then read it from Notepad++. Not from program, but normally from computer. When i'm opening my file i see patterns(i dont how to call this). I think, that I need write it as a string in some way. There is my code:

Java Code:

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.Serializable;

class Task3 {

[code]....

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Instantiate Objects Of Class And Writing Them To Text File

Jul 18, 2014

I need to create a new text file and instantiate objects using an array that writes them to a file and working with the array part.

public class NewTextFile
{
private Formatter file;
public void openFile()
{
try

[code]....

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New Line In Text File

Jun 9, 2014

I'm trying to print the information entered into my TimeClockApp to a text file named timeclock.txt. Everything is writing to the text file, except instead of adding each part of the run through the app to one line, it is saving each part on a separate line like this:

i
3
2014/06/08 15:32:29

To ensure that each run through the time clock is recorded on a different line in the text file, I want it to add each item like this instead:

i 3 2014/06/08 15:32:29

I have tried to execute the

out.println(timeClock.get(i)); line as out.println(timeClock.get(i) + " "); and out.println(timeClock.get(i) + "
");,

but have had no luck in fixing this problem. My current code that writes the information to the text file is as follows:

// write items to timeclock.txt file
try {
// open an output stream for overwriting a text file
PrintWriter out = new PrintWriter(
new BufferedWriter(
new FileWriter(fileName))); // (filename, true) when

[Code] ....

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Deleting First Line From A Text File

Feb 14, 2015

I am want to delete the first line of text file using RandomAccessFile class. My Input file "bulkwfids.txt" has the data as below:

234567
345578
455678
566667

Expected output needs to be(first line deleted):

345578
455678
566667

But the actual ouput I am getting is as follows:

78
56
345578
455678
566667

Here is the code snippet I have written:

import java.io.*;
class DeleteLine {
public static void main(String [] args) throws FileNotFoundException, IOException {
  RandomAccessFile raf = new RandomAccessFile("C://Users/hp/Desktop/bulkwfids.txt", "rw");
raf.readLine();
 
[Code] .....

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Writing Serialized String Array To File

Oct 11, 2014

I have a program I am trying to get together for class. Its a simple calendar, and I'm trying to save an array of dates to a file to be able to recall at will. I have done a fair amount of research but couldn't find a solid method to what I'm trying to do. I have a method that will check the inputted date's file to retrieve or save an entry. Here is where I'm stuck.

baseFile = new File("C:\Users\Ian\Documents\Eclipse (Java)");
private void getFile(String month, String year) throws IOException {
String filename = new String(baseFile+"\"+month+year);
File file = new File(filename);
if(file.exists()){

[Code] ....

This is pretty much the most reasonable method I could find. this is called as a sort of plug for two other methods to call. Everything compiles, no errors or warnings, but no files are being created.

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Scanner Only Reading First Line Of Text File?

Feb 6, 2015

I have a code that imports a text file [URL] .... and has a variety of methods for sorting through it. The file is structured differently when loaded into the environment, as each line begins with a movie and lists all of its actors. Each line has a movie title, then its release date in parentheses, and then the actors in the movie all listed and separated by slashes (Ex: /lastname 1, firstname 1/lastname 2, firstname 2/etc.....

Well I tried to create a method to search all the actors in the file for an inputted word and return the ones that have that word somewhere in their names. I managed to get it to work, but the code only runs for one line of it. How should I get this to do what its doing, but for EVERY line?

Code is here: [URL] ....

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Read Text File Into Array Ask User To Save File And Print Data

Jul 14, 2014

New to programming. Am supposed to create a program that reads a text file (of integers) and computes a series of computations on these integers. I don't have the code for the integers in my code yet, (i know how to do those), but am struggling getting the array to simply print in the print writer. I have the user select a text file, read the file with a scanner, and then save the computations done from my code into another file. specifically, the problem is as follows: Write a program that uses a file chooser dialog to select a file containing some integers. The file contains an integer N followed by N integers. The program then uses a file chooser dialog to let the user specify the name and location of an output file to write results to.The data written to the output file will be as follows

(1) The original list of N numbers from the input file,
(2) The original list of N numbers printed in reverse order of how they appear
in the input file.
(3) The sum and average of these numbers,
(4) The minimum of all the numbers,
(5) The maximum of all the numbers.

[import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;

[Code]....

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Floyd Triangle - Accept Line Number From User And Print Only That Particular Line

Sep 10, 2014

Write a program that accepts the line number from the user and prints only that particular line from the Floyd triangle.

Example:
Input: 2
Output: 2 3

Input: 3
Output: 4 5 6

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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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Is There A Way To Append Text To A File On A Specific Line Or Location

Jan 21, 2015

I know how to append text to a File using the true argument but I would like to be able to append to a certain line In the file.Basically I've made a simple html page with Image links to different sites. I'm trying to make an app that will take a new site as Input and append It to the html file before the </body> tags.

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Serialize Object To String And Vice-versa  Without Writing To A File

Feb 17, 2014

I want to convert an object to string and vice-versa without writing it to file as i want to pass that string to server.

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Print Text To File

Apr 29, 2014

I'm not getting text in the Pledge.txt file. Do I need to assign the pledge to a String variable?

Java Code:

import java.io.*;
import java.util.*;
public class ReadMe {
public static void main(String[] args) throws IOException{
File file = new File("Pledge.txt");
PrintWriter output = new PrintWriter(file);

[Code] .....

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Adding String Line To Existent TXT File

Feb 7, 2015

i'm trying to add new value (string type) in an existent file.say that we have a .txt file which contain "mario"...i ask to the user a new name, and he write for expample "tony", now i want append the word "tony" in the existent file in this way: Iwrote this code:

Java Code:

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

[code]....

first is saved next to the value existing. why? maybe because the program does not check if there is a string in the file?but I do not think. because otherwise it would happen with any name that is not entered in an odd position.

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How To Check For A String In The File And Get Start And End Line Numbers

Aug 13, 2014

write the logic in the below given Java method.

Public static boolean updateNetMap(String filepath, String nodename){

// check the file pointed by filepath to have entry for nodename.
// if it is there, get the start line no and end line no
// Based on the line nos, need logic to remove the contents from the file.
}

Below is the sample node entry, which we need to identify and delete (here nodename is WAS_CD1):

WAS_CD1:
:conn.retry.stwait=00.00.00:
:conn.retry.stattempts=6:
:conn.retry.ltwait=00.00.00:
:conn.retry.ltattempts=6:
:tcp.max.time.to.wait=0:

[Code]...

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Read Line Of Input For A File - String Tokenizer

Jan 27, 2015

So I'm having a problem with the .hasMoreElement() method. I try to read lineOfInput for a file which contains:

Hobbit, Long,t@gmail.com,475-555-4444,3
Long, Hobbit,b@yahoo.com,445-222-5342,2
Hobbit,Long,b@yahoo.com,465-222-5342,2
Help,Yerp,,455-222-2222,4

but when i get to the ,, on the last line I get a NoSuchElementException and the program crashes.

StringTokenizer inputField = new StringTokenizer(lineOfInput, ",");
while(inputField.hasMoreElements()) //for each fields is a line
{
lastName = inputField.nextElement().toString();
firstName = inputField.nextElement().toString();
email = inputField.nextElement().toString();
phoneNumber = inputField.nextElement().toString();
level = Integer.parseInt(inputField.nextElement().toString());
}

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JUnit Test - Read From Text Line By Line And Save Words In FileOnTable

Nov 21, 2014

I have wrote this class who read from text line by line and save the words in fileOnTable.. Now i don't know what to read in ReadOffer to save the words in object offers and return this.. One more question.. What JUnit test can write for this code..?

package com.example.crazysellout.UserSide;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

[Code] ....

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Reading From Text File - Print Linked List On Console

Mar 9, 2015

How can i convert this linked list code to a read from input.txt

The first line in the input file will give the elements to initialize the linked list with. Consecutive lines will provide operation instructions.

Your code should read one line at a time. After reading each line, it should perform the corresponding operation and print the linked-list on the console.

If an operation is not possible, it should print "N/A".

Sample input file. Please note, the comments (// ...) are given for explanation, the input file will not have them:

4, 5, 6, 3// First line. This will provide the initial values for the linked list : 4->5->6->3
1, 9// Add a 9 at the front of the linked-list. After this operation the linked-list should be: 9->4->5->6->3
2, 1// Add a 1 at the end of the linked-list. After this operation the linked-list should be: 9->4->5->6->3->1
3, // Delete the first node in the linked-list. After this operation the linked-list should be: 4->5->6->3->1
4, // Delete the last node in the linked-list. After this operation the linked-list should be: 4->5->6->3
5, 11// Delete the node with the value 11 in it. Since this is not possible, it should print "N/A"
5, 6// Delete the node with the value 6 in it. After this operation the linked-list should be: 4->5->3

Sample output to the console:

4->5->6->3
9->4->5->6->3
9->4->5->6->3->1
4->5->6->3->1
4->5->6->3
N/A
4->5->3

My Code:

LinkedList.Java

class linkedList
{
protected Node start;
protected Node end ;
public int size ;
 
[Code] .....

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