BufferedReader 1 « API « Java I/O Q&A





1. Improve BufferedReader Speed    stackoverflow.com

I am crunching through many gigabytes of text data and I was wondering if there is a way to improve performance. For example when going through 10 gigabytes of data ...

2. How to know if a BufferedReader Stream is closed    stackoverflow.com

I have two threads in Java. First thread is closing a bufferedreader (br.close()) When the second thread does a read on the same reader I get an IOException (Stream Closed) I get this exception ...

3. Is there an easier way to change BufferedReader to string?    stackoverflow.com

Right Now I have

;; buffer->string: BufferedReader -> String
(defn buffer->string [buffer]
 (loop [line  (.readLine buffer) sb (StringBuilder.)]
     (if(nil? line)
        (.toString ...

4. How to clear BufferedReader in java    stackoverflow.com

To read data from my serial port I am using a inputStream and using BufferedReader for the inputStream. After each read I want clear the BufferedReader. Under the class BufferedReader there ...

5. BufferedReader problem in Java    stackoverflow.com

me and my buddy are working on a program for our Object Oriented Programming course at college. We are trying to write text into a file as a database for information. ...

6. How to determine the exact state of a BufferedReader?    stackoverflow.com

I have a BufferedReader (generated by new BufferedReader(new InputStreamReader(process.getInputStream()))). I'm quite new to the concept of a BufferedReader but as I see it, it has three states:

  1. A line is waiting to ...

7. Can I peek on a BufferedReader?    stackoverflow.com

Is there a way to check if in BufferedReader object is something to read? Something like c++ cin.peek(); Thanks

8. Java BufferedReader action on character?    stackoverflow.com

enter code hereI'm reading a stream from a device in Linux which contains hexidecimal letters and is delimited by "^M". Whenever the device is ready for more information it sends ...

9. Java BufferedReader not reporting ready when it contains ">"    stackoverflow.com

I tried to ask this question earlier, but I was unclear in my question. http://stackoverflow.com/questions/3239740/java-bufferedreader-action-on-character Here is my problem.. I have a BufferedReader set to read from a device. ...





10. Size limit on BufferedReader exceeded?    stackoverflow.com

In a java 6 webapp, I am attempting to retrieve a large amount of output from an executed command. I've "borrowed/stolen/based" it on the javaworld article. The ...

11. String returning null after bufferedreader    stackoverflow.com

I grab a line from a text file from a url as a string, and the string returns the correct value. However, if i call the string after the read the ...

12. BufferedReader pointer    stackoverflow.com

I have the following code but I don't understand how I can reset the pointer to the starter position:

BufferedReader inp=new BufferedReader(new FileReader(file));
Scanner leggi=new Scanner(inp);
for(int i=0;i<nwords;i++){
  while(leggi.hasNext()) 
    ...

13. Java create strings from Buffered Reader and compare Strings    stackoverflow.com

I am using Java + Selenium 1 to test a web application. I have to read through a text file line by line using befferedreader.readLine and compare the data that was found ...

14. Keep Java Program Running Without Standard In    stackoverflow.com

What I would like to accomplish is to start a Java program and have it keep running until the user kills it with a control-C. I realize that it is possible ...

15. Return an error when typing neither Y/N    stackoverflow.com

How do i return an error and ask the question Do you want to try again (Y/N)? again when the user entered neither Y/N as an answer?

import java.io.*;

public class Num10 {
 ...

16. Is there a simple way to preserve trailing tabs in java during file in?    stackoverflow.com

BufferedReader and Scanner's nextLine() seem to be helping a little too much by removing all trailing whitespace. I need to preserve columns, which at the moment are allowed to be empty ...





17. Press Anykey in Java with BufferedReader    stackoverflow.com

How to detect keyboard input when user press anykey and then doSomething/Repeat Method, unless escape button without swing/awt ?

public static void isChecking(String x)throws Exception {

    BufferedReader br = ...

18. bufferedReader prepends input    stackoverflow.com

I am trying to read from a Socket using BufferedReader as follows

BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
while ((line = in.readLine()) != null)
        {
  ...

19. BufferedReader issue - doesn't respond properly    stackoverflow.com

I found this TCP server online, I want to modify it a little bit to return different message than was typed in the client. It doesn't work as I want; the ...

20. BufferedReader ignores a character in between two slashes    stackoverflow.com

I was just using the wrong file, sorry! I'm trying to read in a file (.obj file, to be specific) using a BufferedReader. I declare my BufferedReader like this

BufferedReader reader = new BufferedReader(new ...

21. Closing BufferedReader and System.in    stackoverflow.com

Reader rdr = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(rdr);
String s;
s = br.readLine();
br.close();
Scanner sc = new Scanner(System.in);
s = sc.nextLine();
System.out.print(s);
I've noticed that if I close the BufferedReader, I won't be able to insert ...

22. BufferedReader and process.getOutputStream()    stackoverflow.com

I'm simply trying to execute a process in Java, so

Runtime runtime = Runtime.getRuntime();
this.process = null;

try {
    this.process = runtime.exec(new String[] {
        ...

23. Trouble with buffered Reader    coderanch.com

Hi I am trying to read data from a file using a BufferdReader object and then compare it to a String that is determent by args[1] , if it matches i add the data to vector A and if not to vector B , then i write all data in the two vectors to files , this all works nicely and ...

24. Speeding up BufferedReader    coderanch.com

The main one is to use read(char[]) instead. This way to avoid creating a new String object for each line, which can be tiresome. However, it really depends on what sort of processing you want to do with each line. If you end up having to create lots of other Strings anyway, this won't make much of a difference. Try this: ...

25. truncating the first character by bufferedReader    coderanch.com

I am trying to read a bolb data from database to a string using the following code: InputStream bst = rs.getAsciiStream(1); BufferedReader reader = new BufferedReader(new InputStreamReader(bst)); StringBuffer sbuff = new StringBuffer(); int c; String longString=""; try{ while ((c = reader.read ()) != -1){ sbuff.append(reader.readLine()); longString = sbuff.toString(); } System.out.println(longString); }catch(IOException e){} When longString is printed out, it prints out all ...

26. resetting a BufferedReader    coderanch.com

When using the readLine() method of BufferedReader to trace through the lines of a file, how can I 'reset' the file to go back to the beginning? The reset() method requires a 'mark' which is set up with a mark(int readAheadLimit) method. All I want is to return to the start of my file without having to create a new object. ...

27. Buffered Reader problems    coderanch.com

HI All , I have this method in which I open a socket and then passs an XML fileand also after some processing I receive that XML file.But the problem is that the program just hangs up when while loop is executed. I can print the System.outs until------- Message to send is-------.After that the programme just hangs Up and doesn,t print ...

28. resetting buffered reader to beginning of file    coderanch.com

A little stuck here. Im building a small website search tool for my site. First let me tell you I store all content for the site in .txt files. So what Im doing is opening the directory, grabbing the file names, then opening a stream using a buffered reader. I gues the code would be easier than explaining: java.net.URL url = ...

29. Problem with buffered reader    coderanch.com

Hi I am using the follwing code to read from a .txt file while(bReader.read()!=-1) { textData.append("\n"+bReader.readLine()); } return textData; When i print the textData file whichi is a string on the console the out put is "his is test document for the open XP editor project....... f you see this message then the IO is working other wise you have to ...

30. BufferedReader    coderanch.com

I have created a .txt file that contains several lines of text. Ideally what I would like to do is to withdraw only certain substrings from the file, but I am getting two errors, which are: "java.lang.String.substring(Unknown Source)" and "java.lang.StringIndexOutOfBoundsException: String index out of range: 12". My code so far looks like this public class TestBufferedReader { static String inString; public ...

31. BufferedReader...    coderanch.com

Request is to receive e-mail ( via Lotus notes database), I get a handle to it in java application, and get the value from the BODY field. The Vector vecBody = ndoc.getItemValue("Body"); line returns a vector with the entire value of the email in the first element of the vector ( note the e-mail has multiple lines - it is actually ...

32. problem with BufferedReader    coderanch.com

Ok, so I'm trying to do a simple program which has to first read an int, and then read a String. The code is as follows: BufferedReader teclat; teclat = new BufferedReader(new InputStreamReader(System.in)); int op = teclat.read(); String newLine = teclat.readLine(); My problem is that it reads the int, but then I want the program to wait until I write the ...

33. BufferedReader and the ] character    coderanch.com

Hello. I am parsing an xml file and when I read (via in.readLine()) the following line: value] the line breaks at the ], so the String representation for the line is value] then the next line becomes the closing tag: I also noticed this does not happen for all instances where a ] appears in the value...i tested an xml ...

34. BufferedReader skill problem    coderanch.com

Dear all, I would like to know how to read the white space on the BufferedReader function. For example , i have the abc.txt file the format is : 1 0 0 1 0 1 0 0 1 0 0 0 0 0 But i only can read this format: 1001010 0100000 Some of the below program : .... ... .... ...

35. re-read file via a BufferedReader    coderanch.com

hi. i would like to re-read a large file. i have been using a BufferedReader. after i read it once and get a null returned from readline, i'd like to later go back and do it again. tried to use reader.mark(0) right after instatiating the BufferedReader, then calling reader.reset() but that threw an exception. do you know how to do this? ...

36. SocketHandler / BufferedReader question    coderanch.com

I'm writing a simple client/server application that will make use of logging over a network. My client sends LogRecord objects to a SocketHandler which sends XML data to the server. For some reason when I read the data on the server I'm not getting the closing tag for the root element, . I'm basing my code on this example posted on ...

37. tell me about BufferedReader    coderanch.com

38. quick question: bufferedreader    coderanch.com

so why can't i capture the end of line? the BufferedReader.java file has a private field skipLF. i'm assuming this is causing the behavior. is there a way to get around it? public static int test(BufferedReader src) throws IOException { int c = 0; while((c = src.read()) != -1) { System.out.println(c); if(Character.isWhitespace(c)) continue; if(Character.isDigit(c)) { s0.setLength(0); s0.append((char)c); iStack.push(new Integer(Integer.parseInt(s0.toString()))); } if(c ...

39. MalformedInputException in BufferedReader    coderanch.com

Hi, Have a problem when reading a file that was transferred from AS400 through FTP via the following command ------------------ bin quote type C 943 get source destfile ------------------ This creates a xxx.txt file in the Application Server in Linux. When the Servlet uses the BufferedReader to read the file it returns the below exception when it tries to read the ...

40. BufferedReader input fails    coderanch.com

Hello Everyone, I am taking my first Java programming class, and I am stuck on an unexplained detail with the buffered reader input. I want to take an input from the keyboard, and then use it in an if statement. I can take the screen information and I can return it to the screen without a problem, but if I try ...

41. nature of a BufferedReader ?    coderanch.com

StringTokenizer tokens = new StringTokenizer(stringToTokenize); while(tokens.hasMoreTokens()) { String s = tokens.nextToken(); while ((wordToExclud = in.readLine()) != null) { if(s.equalsIgnoreCase(wordToExclud)) processedString += s + " "; } } in.close(); If "in" is a bufferedReader, containing 100 lines of a text file, what happens within the innner while loop after line 100 ? Will "in" go to line 1, on the outter whiles ...

42. Counting newline characters in BufferedReader...    coderanch.com

I'm doing some work on an XML Parser. I've got a class that wraps a BufferedReader, and then provides access to the characters in the text file during parsing via the Buffered Readers read() method. I'm having some trouble counting the number of lines in the text file while I parse it. (I need to recognize the newline characters as I ...

43. flow of control for BufferedReader    coderanch.com

Hi all, i was trying to read the characters from console by using the following program import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; class BRRead { public static void main(String args[]) { char c; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.println("enter characters 'q' to exit"); try { do{ c= (char)br.read(); System.out.println(c); }while(c!='q'); } catch(IOException ioex) { System.out.println("io exception is "+ioex); } } ...

44. BufferedReader??    coderanch.com

HI, Basic Explanation A BufferedReader is a "high-level" reader, that is it can't connect directly to a file or input stream. It is used to make more efficient use of low-level readers because they only read in bytes and chars whereas a BufferedReader can read Strings with the readLine() method. It also has some utility methods like skip(), reset() etc. The ...

45. Question about BufferedReader    coderanch.com

The task is typing in some people's names and the output should be random pairs of these people. e.g. [awana]abc: java Pairs james alex jane james and jane alex My program is shown below: import java.io.*; import java.util.*; public class Pairs{ public static void randomPairs(Set names){ String[] theArray = new String[names.size()]; int index = 0; Iterator i = names.iterator(); while(i.hasNext()){ theArray[index++] ...

46. BufferedReader problem    coderanch.com

BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("Record.txt"))); String line = ""; emptyfile(line, br); if ((line = br.readLine()) == null) { System.out.println("NO RECORD FOR CUSTOMER EXISTS IN OUR SYSTEM"); EXIT(); } while((line = br.readLine()) != null) { StringTokenizer st = new StringTokenizer(line, "," ); String getCusId = st.nextToken(); System.out.println(getCusId); if (getCusId.equals(customerId)) { test = true; } } if the text file is ...

47. bufferedReader    coderanch.com

In private email, Gary asks "Where would those lines of code go?" I'm answering here, so perhaps others might benefit. Rather than answer that, I'm going to show a fixed-up version of the code -- there are a number of other problems that need to be addressed. try { BufferedReader input = new BufferedReader(new InputStreamReader(System.in(), 1); int age = -1; while ...

48. Comparing Strings After Using BufferedReader    coderanch.com

Line 10 is where I seem to have a problem. I want it to evaluate to true. Works fine when I initialize the string to 'test' right before doing the if statement, but not when inputting 'test' from the keyboard. Or do I just need explicit casting? import java.io.*; public class testReadCommand { public static void main(String[] args) { // User ...

49. returning bufferedreader    coderanch.com

I have a method that creates a bufferedreader and it suppose to return it to the calling class. However I am having issues. BufferedReader startMsgReader(){ try{ msgString = new BufferedReader(new FileReader("msg.txt"));//This file holds all the messages } catch (FileNotFoundException e){ System.out.println("Flat-File not found. Program cannot continue"); System.exit(0); } return msgString; }//end DatabaseUtil::startMsgReader The method is held in what I call the ...

50. Confuse BufferedReader type with String    coderanch.com

Could anybody explain to me why i have the incompatible type error when compile this program. inLine Variable is in String so i thought it would ok if i use inLine to send as a string to CookiesPersistant(inLine). But it perform wrror. Why? private void showFile() { // Use a BufferedReader to read text from the file BufferedReader infile = null; ...

51. BufferedReader issue?    coderanch.com

I have written the following code: void execute () throws IOException { BufferedReader stdin = new BufferedReader ( new InputStreamReader ( System.in ) ); showMenu (); menuSelection = stdin.readLine(); System.out.println ("input..." + menuSelection + "..."); if (menuSelection == "AP") try { addPerson(stdin); } catch (IOException ioExcep) { System.out.println (ioExcep); } else System.out.println ("no match"); menuSelection is a private String member variable. ...

52. Prob with BufferedReader(System.in)    coderanch.com

import java.io.*; import java.lang.Character; import java.applet.Applet; import java.lang.String; class Fahrenheit { public static void main(String args[]) throws Exception { float realFahrenheit; float Celsius; char Answer; int Yay; do{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter F: "); realFahrenheit = Byte.parseByte(br.readLine().trim()); Celsius = (realFahrenheit - 32) * 5 / 9; System.out.println(realFahrenheit+" F is "+Celsius+" C"); Answer = (char)System.in.read(); System.in.read(); Answer = Character.toUpperCase(Answer); ...

53. BufferedReader    coderanch.com

54. BufferedReader problem    coderanch.com

You seem indeed to be reading from a socket. A socket doesn't have an "end of file", i.e. there is never a "last line" to be read, so readLine() will never return null. When there's no data coming in on the socket connection, readLine() will just block and wait until data comes in. Calling ready(), like Jeff suggests, is not a ...

55. BufferedReader help    coderanch.com

My problem is that when i enter data, restart the program option #1 to add member option #2 to modify member, no matter what I do I only get back the first record. PLUS...if i dont enter anything the 2nd time, when I exit again..my member.dat file is erased! Do I need to structure the count differently in start_program? package ymcaProject; ...

56. Bufferedreader error issue    coderanch.com

57. bufferedreader / accessing file    coderanch.com

58. Buffered Reader Question    coderanch.com

Hi, I am trying to pass a String with comments and then trying to buffer that String in a buffered Reader for further comparision and I am able to pass it without compilation errors but it is throwing a file not found exception. fis = new FileReader(result ); // At this line throwing file not found exception b'coz it is taking ...

59. BufferedReader problem    coderanch.com

Hi All, My question is regarding BufferedReader. It's readLine() method reads line by line file. Now, my problem is that I have a file that looks like below, 31-Apr-2008 ABC DEF AAA SSS DDDD 1-June-2008 QQQ EEEE RRRRR TTTTTT 2-June-2008 aaa adfdfd erere and so on........... Now, I want to separate records when the date comes while reading. So, is it ...

62. Help with BufferedReader    coderanch.com

Hi. How can i identify the given input is null. Here i have a small code. But if i doesn't enter any value also it shows as valid. Heres the code import java.io.*; public class test { public test() { try { BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String input = in.readLine(); if(input=="") { System.out.println("not valid"); } else System.out.println("valid"); } catch(Exception ...

63. Why its not taking input from BufferedReader, whats wrong in it...    coderanch.com

import java.util.*; import java.io.*; /** * * @author Manu Batham */ public class DeQueue { private LinkedList deq; DeQueue() { deq = new LinkedList(); } public void insertion() throws IOException { char choice; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br.mark(50); do { System.out.println("\n\n\t\tWhich Insert Opertain you want to perform : "); System.out.println("\n\n\t\t ****************************************"); System.out.println("\n\t\t 1. Insert the element at beginning OR"); ...

64. Cannot find symbol method close(java.io.BufferedReader)    coderanch.com

I am a complete beginner, so would greatly appreciate some help. According to the API documentation the method I am calling is correct for the import. Obviously I have not understood the basics can somebody please point me in the correct direction? package readfiletest; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; public class FileTest{ public void ReadSpellingListFile(){ File spellingList ...

65. Difference in the size of file downloaded using BufferedReader and browser    coderanch.com

Hi, I find a small difference in the size of files downloaded using BufferedReader and using browser. For example, I am using the following snippet URL url = new URL("http://download.microsoft.com/download/2/f/5/2f560c66-83f3-405f-bf39-fe4b30c67e5a/NDP1.0sp2-KB886905-X86-PTB.exe"); java.io.FileOutputStream fos = new java.io.FileOutputStream("sampleFile.exe"); java.io.BufferedOutputStream bout = new java.io.BufferedOutputStream(fos,1024); java.io.BufferedReader reader = new java.io.BufferedReader( new java.io.InputStreamReader(connection.getInputStream())); int i; while((i = reader.read()) != -1) { bout.write(i); } bout.close(); reader.close(); and the ...

66. Buffered Reader not ready    coderanch.com

I am using a BufferedReader to read remote site content of a web site. I am using ready() method to check whether the stream is ready and if so iterating through it. In some cases it does not enter into the loop cos the buffered ready is indicating it is NOT READY. Hence I used a thread sleep of 2 seconds ...

67. BufferedReader problem    coderanch.com

I am trying to prompt the user to enter two numbers and then have those numbers set to the two variables cNum and sNum. private static int cNum = 0; private static int sNum = 0; /** * The main method for RegistrarSimulator * @throws IOException if the user does not specify a number */ public static void main(String [] args) ...

68. Need help for a doubt..Using BufferedReader.    coderanch.com

Hello, Can anyone please help me in this? I am doing some practice problems. Suppose user enters the value like this: 2 1 7 2 8 //null line and from this line onwards, i want to display output. I have store value of 2 using, BufferedReader br =new BufferedReader(new InputStreamReader(System.in)); String[] input=br.readLine().split(" "); int n1=Integer.parseInt(input[index]); int n2=Integer.parseInt(input[index+1]); //index=0; index=index+2; I want ...

69. need help on how to recover from (possibly) broken BufferedReader    coderanch.com

Hello, I do some kind of batch processing and the following codefragment works 39 times and breaks at the 40th time. Executing the batch from Eclipse, nothing strange happens - all works well. Executing the batch from Linux-jre, it fails. From the logging I suspect, that the code hangs in br.readline()as the propietary logfile will not grow. The result file, created ...

70. BufferedReader input file size limit    coderanch.com

71. BufferedReader and ready state    coderanch.com

hi guys. I'm wonder about BufferedReader and it's stream ready state. I mean does BufferedReader (readline() method) take care of ready state of incoming stream or not? because when I try to read stream with InputStream or InputStreamReader I have to check the ready state of the stream (ready() method) before begin reading the stream (read() method), I've faced with kinda ...

72. When will BufferedReader.ready() status will be true    coderanch.com

hello memebers i am actually trying to implement a Server Client communication using the RTP and UDP protocols, i am trying to send the message from the client to server using BufferedReader and BufferedWriter the problem i am facing is even though the client and server are bind same port the server is unable to read what the client is try ...

73. BufferedReader Help    coderanch.com

Hey guys, I need to read input from standard input one word at a time. This is kinda what I had in mind, but I'm not sure this will work because I need to return one word at a time to the calling class. Here's what I have: import java.io.IOException; import java.util.StringTokenizer; /** * reads the input one word at a ...

74. Extending Buffered Reader    coderanch.com

I have Extended the Buffered Reader class. The purpose was to create a Readline method that will time out. The reason for this is I using Buffered reader to communicate with a device over the network, if the device does not respond I do not want my program to be hung up. Any way below is the code for my method. ...

75. Simulate value into BufferedReader    coderanch.com

import java.io.*; public class New { /** * @param args */ public static void main(String[] args) throws Exception { // TODO Auto-generated method stub String g= "C:\\Program Files\\Beyond\\a.bat"; Process p = Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + g); // System.out.print("Enter your name: "); // PipedReader pr = new PipedReader(); // PipedWriter pw = new PipedWriter(pr); // BufferedReader br = new BufferedReader(pr); // pw.write("Java\n"); ...

76. bufferedreader    coderanch.com

Hi Natasha, You can edit your original post and add the code tags to it so it displays nicely. Your program seems unnecessarily complicated for what you are attempting to do. If you try streamlining it a bit it may become clearer what is going wrong. But to expand on the point Campbell was making, take a look at your writetoFile() ...

77. Using a BufferedReader    coderanch.com

I'm writing a program that uses a BufferedReader to read lines from a notepad file that I saved as altitude.txt. Here is my code so far: /* Rocket Program */ package rocketjava; /** * @author Alex Richards */ import java.io.*; public class Main { public static void main(String[] argv) throws IOException, FileNotFoundException { BufferedReader b = new BufferedReader(new InputStreamReader(new FileInputStream("altitude.txt"))); int ...

78. how can i make bufferedreader    java-forums.org

79. close and reopen BufferedReader    java-forums.org

80. BufferedReader error cannot resolve symbol    java-forums.org

81. BufferedReader, need help!    java-forums.org

Hello, my name is Zachary and I am new to this forum. This is my first question so please help me! I am creating a program that is made to print out my class schedule and average my GPA from input that I give it via keyboard. I am using a BufferedReader class and have reached this so far: /** * ...

82. BufferedReader    java-forums.org

83. BufferedReader error?    java-forums.org

Hello all, I am new to this forum, and also to java, so bear with me a bit. I got this exercise in lab class to make a program that converts from one type of temperature to the other two(eg. Celsius to farenheit and kelvin). Now, I was progressing along nicely, and managed to make the first one(for Celsius) work, however ...

84. Sinking into a swamp called "BufferedReader"...SOS...    java-forums.org

import java.io.*; import acm.program.*; import java.util.*; import acm.util.*; public class myReader extends ConsoleProgram { public void run( ) { println(" this program reverse the lines in a file. "); BufferedReader rd = new openFileReader("Enter input file: "); String[ ] lines = readLineArray(rd); for (int i=lines.length-1; i >=0; i--) { println(lines[i]); } } }

85. BufferedReader problem    java-forums.org

i have another question i have an array with usernames and passwords that are in a 2d array, and i check those values with the text entered from a textField but it never works. here is the code - String username = username_txt.getText().toLowerCase(); for (int v = 0; v < user[0].length; v++) { if (user[0][v] != null) { if (username == ...

86. BufferedReader makes me rage    java-forums.org

Hello, here is an echo server code: Java Code: public class EchoServer { public static void main(String[] args) { try { serverSocket = new ServerSocket(1234); } catch (IOException e) { System.out.println("Could not listen on port: 1234"); System.exit(-1); } Socket clientSocket = null; try { clientSocket = serverSocket.accept(); } catch (IOException e) { System.out.println("Accept failed: 1234"); System.exit(-1); } PrintWriter out = new ...

87. How to use BufferedReader?    java-forums.org

How do I use BufferedReader to read whole paragraph? I dont know how to start it except typing: class Reader throws IO Exception { BufferedReader reader - new BufferedReader(); } I know Im supposed to use readline() but I just dont know how to put it...... BTW can Bufferedreader read strings inside a vector?

88. Buffered Reader File Location    java-forums.org

89. Cant get if/else to work with bufferedreader    java-forums.org

Mah bufferedreader is working when it uses the input to create the player name string, but I cant get it to make the if/then/else thang work =\. I feel like it is something decently obvious im missing, help with that or any other criticism would be helpful :D Java Code: import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.*; import java.util.*; public class Game ...

90. use of BufferedReader?please help    java-forums.org

hi,i am new to this forum and i am finding it really exciting.... i want to clear one of my doubts..... BufferedReader br=new BufferedReader(InputStreamReader(System.in)); System.in is used to obtain byte stream from standard input,i.e.keyboard InputStreamReader is a subclass of Reader which is used to convert byte stream into character Stream... what is the use of BufferedReader in this statement then????? and ...

91. Close a BufferedReader?    java-forums.org

92. BufferedReader error (Stanford tutorial)    java-forums.org

// Generates word list from a .txt file and selects a word randomly private void getWord() { int size = 0; BufferedReader rd = new BufferedReader(new FileReader("HangmanLexicon.txt")); ArrayList sList = new ArrayList(); try { while (true) { String line = rd.readLine(); if (line == null) break; sList.add(line); } rd.close(); } catch (IOException ex) { throw new ErrorException(ex); } int wordNum = ...

93. Using BufferedReader    java-forums.org

The BufferedReader#readLine() method returns what is read in as a String. In your second attempt to use it you're reading in from the BufferedReader but not saving the String that is returned but instead just discarding it, and then trying to print out the BufferedReader object itself which you're finding doesn't work. It's as if you wrote a letter to someone ...

94. BufferedReader    forums.oracle.com

Hi This is one of the way which wil solve ur problem. import java.io.*; class Invent { public static void askMe() { System.out.print("who is the inventor of c :"); System.out.flush(); } public static void main(String args[]) throws IOException { int count = 1; BufferedReader d = new BufferedReader(new InputStreamReader(System.in)); String answer; for (int i = 0; i < 3; i++) { ...

95. BufferedReader for input file error    forums.oracle.com

/** * Matrix.java * * Matrix is a class that contains methods that read an adjacency matrix in from * a file and echos that matrix to an output file. It then calls a Depth First * Search algorithm to determine the paths within the graph that the adjacency * matrix represents. Within the function, it recursively calls itself to find ...

96. bufferedreader resetting    forums.oracle.com

is there a way to reset a bufferedreader so that it starts reading (repositions) again at the beginning of the file? The reset() function needs you to have previously called a mark(). And mark takes a "readAheadLimit" which i dont properly understand :-/ (i dont know the amount of chars that will be read before i need to reset)

97. BufferedReader input problems    forums.oracle.com

It compiles and runs OK for me. (Well, it has a bug in it. It asks for heads or tails and then never stops asking. But it compiles and I don't get any runtime exceptions.) What compiler are you using? What's the actual error message? Are you sure you're compiling the same code that you posted?

98. BufferedReader confusion ?    forums.oracle.com

"why it is so confusing to take just one input in java ?" I'm by no means an expert but I think it's not necessarily a question of confusing as it is complexity. Input may not be as simple an issue as you imagine. Bear in mind that a Java program is not restricted to receive that input from a standard ...

99. BufferedReader    forums.oracle.com

srry, I didn't know. I'll use the expression "method" from now on. ahm..firstly the other method has to be void... well, I don't really have to use two methods. I can combine those two in one... it's just that I want to use the String named text again, because it has to be appended on a textarea. er..how to put this...because ...

100. BufferedReader troubles    forums.oracle.com