TXT File Into CSV Output On Console?
Feb 12, 2015i need to take a txt file and turn it into a csv(comma seperated value) output on console but where to begin.
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Implementing Read File And Output In Console
Oct 28, 2014I have the file test.txt that include:
[Computers]
Keyboard=10
Mouse=5
[Cars]
Lamborghini=6
BMW=3
The [Computers] , [Cars] are Category, Keyboards, Mouse,Lamborghini, BMW, are Descriptors and the numbers are values
I have this code until now.
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Objects;
import java.util.Map;
public class Descriptor {
[Code] .....
All I want is that my program can read the entire txt file and output in console the Category Descriptors and Value.
Example:
Cars: Lamborghini 6, bmw 3
Computers: Keyboards 10, Mouses 6..
Display Contents Of File In Reverse Order - Output To Console
Jun 24, 2014Create a class that allows the user to select a file and output the contents of the file to the console. Recommend using a text file to display, java files are text files. You may want to put this code in a method to allow you to complete the remainder of this assignment without overwriting your code.
- You should ask the user to enter the full path to your file to make certain you are processing the correct file.
- Modify your code/add a method to display the contents of the file in reverse order. You do not need to reverse the characters on each line but simply output the lines of the file in reverse order.
Hint: read the content of the file into an ArrayList and then traverse the ArrayList.
this is what i go so far.
package classActivity;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
public class Select
{
public static String enterFilePath()
[Code] ....
ProcessBulider Output To Console
Mar 10, 2014I have written a shell script which connects to oracle database and performs operation and returns some output message. Script works fine from command prompt. My requirement is to make it run from a web page which I have accomplished. I am getting the output of shell script on a different web page defined by HTML form action in my jsp file. Everything is working fine.
Below is the part of java class I have written:
=============
String fileName = "build_"+ request.getParameter("region");
String arg1 = request.getParameter("release");
String arg2 = request.getParameter("email");
ProcessBuilder pb = new ProcessBuilder(fileName,arg1,arg2);
Process p = pb.start();
InputStream inputStream = p.getInputStream();
[Code] ....
As shown above, my shell script accepts 2 arguements . User enters arguements in the fields provided which are passed to shell script by processbuilder. Script runs successfully and displays output [ success/error ].
But my problem is , the shell script takes nearly 1 hour to do its job in the database and untill then my web page keeps showing as busy. Whereas in command prompt, shell script displays messages as it runs and thus keeps the end user informed about its progress. However, when called from java it waits untill the shell script completes/terminates and finally displays all the messages at once. I want to know if there is a way to display the shell script output on web page as it continues to run in the background ( child process ).
I tried without the waitFor() function but no luck. It still waits for shell script to exit before displaying any message.
How To Clear Java Output Console
May 2, 2014how to clear my java output console?
View Replies View RelatedFormatting Tables For Console Output?
Apr 13, 2014I am writing a class which formats console output as a table. It displays the type of an entry, the name of an entry, and the data for an entry. I am stuck on a required for loop which appends a tab character to a string, for formatting it as a table. It doesn't seem to be adding any of the tabs and I can't tell what I've done wrong. As far as I can tell the contents of the loop are never reached, and I can't make sense of it.
The ConsoleWriter class that contains the code that is in error...
Java Code:
package frontend;
public class ConsoleWriter {
private static String tabbedData(String data, int min) {
System.out.println(); //for debug
int tabcount = 0;
int len=8*min;
[code]....
Text Output In Console In BOLD
Aug 2, 2014package midtermproject;
import java.util.Scanner; //Using for scanner class
import java.awt.Font; //Using for bold
public class MidtermProject {
/**
* @param args the command line arguments
*/
public static void main(String[] args, String setBoldText) {
[code]....
I need the console to display BOLD for the movie title only. I imported java.awt but I do not know what else or how else to do it. I have looked in my book, online, youtube, yahoo answers and I want to figure this out. I found an answer on here that someone talked about java.awt but did not specific what.
Servlets :: How To Redirect A Console Output To Textarea
May 8, 2014i am doing a program that allow user to run and execute java language in this commandline.jsp, a servlet execute.java , jsp called get consoleout put.jsp to direct it to commandline.jsp...however there a compilation errors cos i could only get a line of string, and when i run loop in commandline.jsp it will not have the output. i could only run helloworld in it.therefore i need code that i can run multiple line in it. i suspect its the print stream error in execute.java
<!DOCTYPE html>
<html>
<head>
<title>java interpreter</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script src="jquery-linedtextarea.js"></script>
<link href="jquery-linedtextarea.css" type="text/css" rel="stylesheet" />
[code]....
Client Server Output Console Sharing Eclipse
Jan 22, 2014I took an example from here on client server sockets: Complete Java Networking Explained with Simple Examples - Go4Expert and placed it in separate classes and had a single main to run it both a server then the client.It seems ok but I cannot have the console outputs sharing the same console.
I start the server first and this takes precedence and the client will not output to console unless I stop the restart the app after commenting out the server startup as its already running, then eclipse gives me 2 consoles I can move between Is it possible to have both client and server share output console?
Can't Give Input A File By Console
Sep 28, 2014this is my code...in my code i cant give input form my console...it takes input but it doesn't save in a target file..My code is :-
package filetester;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
[code]....
File Location Of Java Console On Windows XP System?
Dec 11, 2013I've forgotten the file location of the Java Console contents on a Windows XP system.
View Replies View RelatedReading From Text File - Print Linked List On Console
Mar 9, 2015How 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] .....
Read Input File And Create Output With Anagram For Words In File
Sep 24, 2014Well my code is supposed to ask for an input file and then (ex: input.txt), read the input file and create an output.txt file with the anagram for the words in the file. Also it should be displayed on the screen. However my code doesn't display the anagram on screen or the output file!
Heres is the code:
import java.io.*;
import java.lang.*;
import java.util.*;
/* This program will read a file given by the user, read the words within the file and determine anagrams of the given words. If the file that the user inputs is empty, then the program will output "The input file is empty."
* The program will read the file line by line, counting the total number of words read. If there are more than 50 words, "There are more than 50 words."
* will be printed, and the program will terminate. After each line is read, the words in the line will be separated,punctuation characters will be removed, and upper case characters will be switched to lower case.
* If any word is larger than 12 characters, that word will not be considered in the total amount of words in the file and it will not be sorted.
* After each word is read, the letters will be sorted and stored into an array containing each
* word's 'signature'. After all the words have been read, words will be printed to the output file on the same line based upon their signature.
*/
public class Anagram {
//Creating constants for maximum words in file and maximum chars in word
public static final int MAX_CHARS = 12;
public static final int MAX_WORDS = 50;
[Code] ....
BufferedReader - Read Names Off Of Email Addresses In A Text File And Print To Console
Nov 5, 2014I'm trying to write a program to read the names off of email addresses in a text file and my code is not printing anything to the console. So I want to print everything before the "@" sign. It seems like I'm missing a big thing
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;
public class Email {
public static void main(String[] args) throws FileNotFoundException, IOException {
[Code] ....
Read A File And Then Output Back To Same File On New Line
Jan 24, 2015I am trying to write to a file but everything I have tried doesn't seem to work. What I want to do is read a file and then output back to the same file on a new line. The text file contains the sentence "Java is a programming language".
import java.util.Scanner;
import java.io.*;
class HW1B {
public static void main(String[] args) {
Scanner fileIn = null;
try {
fileIn = new Scanner (new FileInputStream("text.txt"));
[Code] ....
These are the errors :
HW1B.java:19: error: no suitable constructor found for Scanner(FileOutputStream)
fileOut = new Scanner (new FileOutputStream("text.txt"));
^
constructor Scanner.Scanner(Readable) is not applicable
(argument mismatch; FileOutputStream cannot be converted to Readable)
constructor Scanner.Scanner(InputStream) is not applicable
[Code] ....
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
2 errors
Output CSV File With Printwriter
Feb 17, 2015You are given a file containing the names and addresses of company employees from many years ago that your manager has asked you to import into a database. You can use a CSV file and your database application to load the file, but the file your manager gave you was exported from an old, non-standard accounting system. Here is its format:
Fred|Flintstone
1212|Bedrock
Austin|Texas
Harry|Potter
1234|Hogwarts Road
[Code] .....
How To Output Newline To CSV File
Oct 17, 2011I would like to enter a new item into a CSV file but all my items being entered are all staying on one line in the CSV file. I would like each new item to show up on a new line and I can't seem to find the code to make it work.
public String addItem(String newItem, int credits, String code)
{
String money = Integer.toString(credits);
try {
BufferedReader itemsCSV =
new BufferedReader(new FileReader("itemList.csv"));
[code]....
Printing In Output Txt File?
Mar 10, 2014I have a for cycle in which I have a line for printing in the output file. But the file remains empty.
I inserted ShowMessageDialog in the same cycle in order to see what are the results of the calculations that are supposed to appear in the output file, and I see that the results are fine.
Here is some of the code:
XML Code: BufferedWriter bwLink = new BufferedWriter(new FileWriter("." + ToolKit.fileSeparator() + OUTPUT_FILE_LINK));
bwLink.close();
....
....
...
PrintWriter outLink = new PrintWriter(new BufferedWriter(
new FileWriter("." + ToolKit.fileSeparator() + OUTPUT_FILE_LINK, true)));
...
...
JOptionPane.showMessageDialog(GuiMain.this, " Link: " +counter + " Normal: " + trafficResult[0] + " ;
[code]....
Nothing Shows Up In Output File?
Apr 21, 2015I am working on a program that accept input file from user and then from the input file, it count the occurrence for each words then put those result into the output. However, after I run this program, nothing shows up in the output file. It is totally empty...It seems nothing wrong with my code... Here is my code
import java.util.*;
import java.io.*;
public class occurance {
public static void main(String[] args){
String inputFileName="";
String outputFileName="";
if(args.length == 0){
[code]....
Output File Is Empty
Feb 18, 2014I have an output file which should contain some total values from calculations, but at the end it is empty.Here is my code in the try catch block:
BufferedWriter bwArea = new BufferedWriter(new FileWriter("." + ToolKit.fileSeparator() + OUTPUT_FILE_AREA));
bwArea.close();
in the method after that I have:
PrintWriter outArea = new PrintWriter(new BufferedWriter(
new FileWriter("." + ToolKit.fileSeparator() + OUTPUT_FILE_AREA, true)));
Integer total=traffic[0]+traffic[1]+traffic[2]+traffic[3];
double greenPercent = ((double)(traffic[0] )) / total*100;
double yellowPercent = ((double)(traffic[1]))/total*100;
double redPercent = ((double)traffic[2])/total*100;
double blackPercent = ((double)traffic[3])/total*100;
[code]...
Getting Program To Write To Output File?
Mar 19, 2014My program successfully reads a file, reports back what it finds and creates an output file. However, I cannot get it to write to the output file, it is always blank!
Here's my code:
import java.util.Scanner;
import java.io.*;
public class Ex19
{
public static void main (String [] args)
{
//Variables
[code]....
Reading Text File Output
Mar 16, 2014I have to write a program that reads the input from a text file!
Beware the Jabberwock, my son,
the jaws that bite, the claws that catch,
Beware the JubJub bird and shun
the frumious bandersnatch.
I should print the number of lines, the longest line, the number of tokens on each line and the length of the longest token on each line.
I was able to find the number of tokes in the line but im having having problems reading the longest word ,, my program gives me the number of letter of each line instead of only the number of letter of the longest word!!
this should be my output:
Line 1 has 5 tokens (longest = 11)
Line 2 has 8 tokens (longest = 6)
Line 3 has 6 tokens (longest = 6)
Line 4 has 3 tokens (longest = 13)
Longest line : the jaws that bite, the claws that catch,
import java.io.*;
import java.util.*;
public class InputStats{
public static void main (String [] args )
[Code] .....
New Lines Don't Show Up In File But They Do Show Up On Console
Apr 30, 2015I have the following code.
class A {
List<StringBuilder> list;
public void output(List<StringBuilder> objectToOutput){
try(BufferedWriter bw = new BufferedWriter(new FileWriter("temp.txt"))){
for(StringBuilder row:objectToOutput) bw.write(row.toString());
}catch(IOException e){}
[code]....
Why don't the a's show up on the console? I put them in as part of the debugging process and now I don't understand why they don't show up in both places.
Creating A Text File With Program Output
Sep 21, 2014I'm trying to copy my program output to a text file and still have it be displayed in the console.
View Replies View RelatedHow To Print Result Of Program In Output File
Mar 17, 2014I have printed the result of my program into an output file.
For some reason I can't figure out how to get the file output.txt to actually print.
I've tried printing it like I would normally print a file but it's not working.
Java Code:
final PrintStream console = System.out;
File file = new File("output.txt");
PrintStream out = new PrintStream(new FileOutputStream(file));
System.setOut(out);
System.out.println(collection.toString());
System.setOut(console);
What do I do after this? mh_sh_highlight_all('java');
How To Use File Input / Output In Addition To Exception Handling
Dec 2, 2014I am trying to learn how to use file input/output in addition to exception handling... The problem is my textbook wrote this chapter for a version of Java that hasn't come out yet, so everything I do "according to the textbook" doesn't work. any feedback on correcting these exception errors because I am not sure what is causing them or how to fix them.
I was able to have it display the name of the book in the Book.txt file, but when I added the second part if the file doesn't exist, that's when the errors came up and it wouldn't compile.
import java.io.*;
import java.util.*;
public class DisplayBook
{
public static void main(String[] args) {
try {
File book = new File("Book.txt");
FileInputStream in = new FileInputStream(book);
[Code]...
These are the compilation error messages I am receiving: (I have managed to get it down from 7 errors to just 4, but now I'm stuck)
DisplayBook.java:15: error: unreported exception IOException; must be caught or declared to be thrown
while ((letter = in.read()) != -1) //if file exists, displays book title
^
DisplayBook.java:24: error: unreported exception FileNotFoundException; must be caught or declared to be thrown
[Code] ....
4 errors