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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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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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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Oct 15, 2014
If I want to read my file line by line and when it hits a certain value from that point it should start deleting the lines until the tag ends.Just curious will my code actually work at the moment or not because it goes through so many times then goes straight back to the variable declarations at the start of the method and never hits the console print line.
public void removeEnvironment(){
//declare variable to environment id
String environmentID = "Environment id";
String lines = null;
boolean lineFound = false;
boolean end = false;
[code]...
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May 26, 2014
I have a simple txt file, each line simply containing 1 word.I would like each work to represent an index of the array..im having some difficulty populating an array from either a txt file or a scanner.i seem to be able to fill the scanner so to speak with the contents of the text file but not the array. I don't know how to syntax it
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
import java.util.Arrays;
public class ReadFile
public static void main(String[] args) {
[code]....
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Apr 23, 2015
I'm having trouble with how to read a text file into my program so the words can be sorted alphabetically. Should I use something like a FileReader?
An example of what I'm trying to do is a .txt file that holds the statement "java is a simple object oriented and distributed and interpreted and robust and secure and dynamic."
The output should organize the words like so: and and and and distributed dynamic interpreted is java object oriented robust secure simple
Here's what I have:
public static void main(String[] args) {
if (args.length != 1) {
System.out.println("Usage: java AscendingAlphabet"
[Code].....
I can never get it to read the file correctly, it just prints the "usage: java..." statement.
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Oct 12, 2014
I have to read data from a text file and print it in a new text file. An example of one line is like this:
Johnson 85 98 75 89 82
I then have to take the average of all the numbers and assign a "grade" to the numbers for each line of the text file and make a new file so it looks like this for 10 lines:
Name 1 2 3 4 5 Average Grade
Johnson 85 98 75 89 82 85.80 B
My problem is extracting the data from the file so I can use it.
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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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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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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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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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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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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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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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May 2, 2014
I'm trying to print the number of vertices in a text file on a graph which is the first integer in the file and then the type of graph is an undirected graph for a 0 or a 1 for a directed graph. Right now I'm just trying to print the number of vertices which is a 6 in the text file.
Here's the text file:
6,1
0,2 0,4 1,4 1,5 2,1 2,3 2,5 3,2 3,4 4,1 4,5 5,1 5,3 5,2
Im getting the following error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 6, Size: 0
at java.util.ArrayList.rangeCheckForAdd(Unknown Source)
at java.util.ArrayList.add(Unknown Source)
at Vertices.main(Vertices.java:21)
Then I need to know how to go about reading the next line in the file, do you read it with the nextLine and put it into an arrayList or do I read each index in the graph?
public class Vertices
{
public static void main(String[] args) throws Exception
{
Scanner inFile = new Scanner(new File("graphs.txt"));
// Read the number of vertices
String line = inFile.nextLine();
ArrayList<Integer> list=new ArrayList<Integer>();
String[] data=line.split("[\,]");
int numberofvertices=Integer.parseInt(data[0]);
int typeOfGraph=Integer.parseInt(data[1]);
list.add(numberofvertices,typeOfGraph);
System.out.println("The number of vertices is " + numberofvertices);
}
}
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Mar 16, 2014
I 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] .....
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Jul 2, 2006
I am using a JFrame with JPanel (with radiobuttons and jtextfields) and am wanting to get data from a text file (around 100 words) and input 4 words at a time into my gui. I have been trying to do this by filling an string array with the data, (no problems here) then using jTextField to read the array. (having a few problems in this area though) Am about 80% there...but just wondering is there a better way to approach this problem, that is, inputing words into gui, refreshing, input 4 new words, refreshing, etc.
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May 2, 2014
I have a problem in reading the text file. I have my source text file at "D:/input.txt".When the below code is executed the following errors are coming.
" java.lang.NoClassDefFoundError: Try
Caused by: java.lang.ClassNotFoundException: Try
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
[Code] ....
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Apr 29, 2014
I'm working on a project for my Java class and I've got the code compiled and running, I just don't think that the program is reading the text file the way I want it to.
The text file looks like this:
1168,4.25,10
1305,1.80,42
1345,12.56,16
1388,7.42,30
1480,6.54,80
1495,8.36,48
1560,15.27,65
...
The first number being product number, second being price, and 3rd being quantity. I want to be able to enter the product number and have the Textfields for price and quantity be filled accordingly.
But when I enter a product number (e.g., '1168') no match for the item is being found, regardless of what I enter. Really stumped on this. Here's my code so far --
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.Scanner;
public class Project3
{
private static Frame myframe;
private static TextField productCode;
private static TextField invNumberField;
[Code]...
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Feb 25, 2015
In my app, I'm reading a xml file (with JAXB) but there is times that I have empty segments. I put some examples :
<tuv> <seg>Unknown: the action taken should always be known</seg> </tuv>
Here I read well the tag "seg", I can get all text "Unknown: the action taken should always be known" but if this text is like this:
<tuv> <seg><bpt i="1" x-wb-tag="b1" />Unknown<ept i="1" x-wb-tag="/b1" />: the action taken should always be known</seg> </tuv>
I don't get anything, my variable is empty and I want to get all text "Unknown: the action taken should always be known"
Could I get this text
"<bpt i="1" x-wb-tag="b1" />Unknown<ept i="1" x-wb-tag="/b1" />: the action taken should always be known"
Or only "Unknown: the action taken should always be known" (without tag "ept" and "bpt"? (I want this like a string)
My variable's value is a "string" ....
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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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Aug 6, 2014
Show me a code where I can get text file all content to String?
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Apr 16, 2015
I have a file that has the following text in it:
# Main configuration file for DEDServer
# Starting resource values
startingGold=1000000000
startingElixir=1000000000
[Code] ....
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Mar 30, 2014
Followed this: [URL]
public static final String FILENAME="BinarySearchTree.txt";
....
public BinarySearchTree(TNode r) throws IOException {
root = r;
textfile = new File(FILENAME);
fw = new FileWriter(textfile.getAbsoluteFile());
bw = new BufferedWriter(fw);
br = new BufferedReader(new FileReader(FILENAME));
[code].....
In the constructor I create the BufferedReader using the FileReader and path to the input text file(in same dir as this project). When I am done reading I close it. In the debugger it is unable to read a single line, then goes to close the file.
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Apr 7, 2014
public void savePlants(ArrayList flowerPack) throws IOException
{
Scanner input = new Scanner(System.in);
String name;
[Code].....
When I open the saved file the information I need seems to be saved, but when I try to load and search it the data is not there. This is homework that was due about 2 days ago. I just want to get it right in my head for next time.
This is my text file: ¬í sr java.util.ArrayListxÒ ™Ça I sizexp w sr FlowerNÏŠ¨r;¾ Z hasScentZ hasThornsL flowerColort Ljava/lang/String;xr Plant"ô²Ò0¢ I IDL Nameq ~ xp t Roset redsr Fungus “ +) Z isPoisonousL fungusColorq ~ xq ~ t toadstool t brownsr Weed #©éÇÙN Z isEdibleZ isMedicinalZ isPoisonousL weedColorq ~ xq ~ t dandylion t yellowsq ~ t tulip t pinkxq ~ q ~ q ~
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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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