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Questions tagged [printstream]

175 questions
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Read from byte array to console (or file) Java

So I have two files, a binary file that I have read into a byte array, and a text file that I have read into an ArrayList of Strings. Now lets assume my ArrayList has the values "char", "int", "double" and serves as the schema for reading my binary…
Taylor C. White
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JVM_Close returned -1 when closing PrintStream

I'm not particularly proficient with Java. I'm converting an array of bytes to a String (each byte with a decimal representation) and then writing to a file. Here is a minimal example that reproduces the problem that I'm having (I've left the file…
Froskoy
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Encoding issue with System.out in Java

I'm having difficulties with my logger that I embedded into a JTextArea: when I call the logger.append() method, it just works fine, but when I use System.out.println(), all my French accents are lost. Here, you have the creation of the logger and…
Maveric78f
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How do I switch between String I/O and Object I/O streams in Java?

I'm creating a client-server application wherein the server or client sends strings using PrintStream and reads strings using BufferedReader/InputStreamReader. Eventually, I need to either send an object from the server to the client or vice versa…
NobleUplift
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Java - Strange behaviour on PrintStream with custom OutputStream

I am trying to write a program that redirects System.out to a JTextArea (it doesn't have to be a JTextArea), but when I call System.out.println("Test!") the output to the text area is like so: \n st! \n The code for my OutputStream: package…
condorcraft110
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Why is this basic client-server program not passing data?

I am following the Java Trail on networking. The three KnockKnock classes used as examples (client, server, and protocol) work as intended when I copy/paste them into Eclipse. However, what I really want to do is eliminate the protocol class and…
James Rogers
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Why Java PrintStream have to Overload its print() functions?

Here you are: http://developer.android.com/reference/java/io/PrintStream.html#print%28float%29 Just one function could serve all the purposes: public void print (Object o) { if (o == null) { // print "null" } else { // print…
midnite
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capturing error message and to display in console (IDE)

I am running a c++ program (makefile) as a background process using Processbuilder from my java Program. I am capturing the values displayed in my cmd prompt using .getInputStream and displaying in my console (IDE) . input = new…
sreram
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How to print out the input or JTextFiled

As a part of my program, I just want to print out what the user enters in the jTextField here is what I do, but does not work at all. JTextField myInput = new JTextField(); String word = myInput.getText(); myInput.addActionListener(new…
Alex Jj
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Reading From a File of Numbers Using RandomAccessFile Java

I have an assignment to write some numbers in a text file using PrintStream and then reading from that same file using RandomAccessFile. While the writing part works as intended, I get the following output when running my code. …
Casteurr
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Doubling System.out

I want to write System.out messages to another OutputStream, but I still want to have the standard output too. I found an answer on this similar matter Copy and Redirecting System.err Stream: In short what you need to do is define a PrintStream…
Daniel Szalay
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Java PrintStream .println() method not outputting to file?

I am trying to write a method which recursively gathers data from files, and writes erroneous data to an error file. See code block: public static LinkedQueue getStockData(LinkedQueue stockQueue, String startPath) throws Exception { …
James C
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Edit the method for using System.in and System.out

I have this methods OutputStream os = new FileOutputStream("out.txt"); InputStream is = new FileInputStream("out.txt"); Transit.outputTransport(Parking, os); System.out.println(Parking.toString()); Transport forOut =…
Jay Castle
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Why is third printstream println() command skipped?

I've got a server/client program that I am writing in which a server sends messages to a client and vise versa. It works perfectly, except for the out.println statements in the printRemoteAddress() method. "HELLO1" and "HELLO2" print to the…
Omar N
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Java static printstream error

Unreported exception java.io.FileNotFoundException; must be caught or declared to be thrown I'm writing a basic program to generate a a script. I'm using two methods to write to the file, so, I thought I'd user a static level file and…
Grayson
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