I found the code below from the internet, works but it doesn't write the printed console to omt.txt, it only writes the System.out.println statements after the second catch block.If you run the cod...

Is there a difference in using these two? When would you use one over the other? System.out.println(result); versus PrintWriter out = new PrintWriter(System.out); out.println(result); out.flush...

What is the difference between PrintStream and PrintWriter? They have many methods in common due to which I often mix these two classes up. Moreover, I think we can use them for exactly the same th...

I am trying to get the OutputStream of the Process initiated by exec() to the console. How can this be done? Here is some incomplete code: import java.io.BufferedReader; import java.io.File; impo...

I have just read, that in Java the classes PrintStream and PrintWriter don't throw checked exceptions. Instead they are using a kind of an error flag which I can read invoking the method boolean ch...

I was going through the internal implementation of System.out.println().Though I understood how this is working but couldn't figure out : Why they decided to use the System class in the fir...

I have a function that takes an object of a certain type, and a PrintStream to which to print, and outputs a representation of that object. How can I capture this function's output in a String? Spe...

I have seen in the System class that the out object (of type PrintStream) is initialized with a null value. How can we call method like System.out.prinln("");? In System class out variable initiali...

I have a string that I format with the System.out.format() method, I do something like : System.out.format("I = %3d var = %9.6f", i, myVar); but when I try to write this formatted string into a ...

When looking at the PrintWriter contract for the following constructor: public PrintWriter(OutputStream out, boolean autoFlush) Creates a new PrintWriter from an existing OutputStream. This co...

The code below gives me the Unicode string as கா sysout = new PrintStream(System.out, true, "UTF-8"); sysout.println("\u0B95\u0bbe"); By giving கா as input, can I get the hex values as \u0...

I have several classes designed to simulation a book catalog. I have a book class (isbn, title, etc...), a BookNode class, a BookCatalog which is a LinkedList of books and a driver class (gui). My ...

Update: Still having the same issue, revised source of main app code: http://pastebin.com/fLCwuMVq There must be something in CoreTest that blocks the UI, but its doing all sorts of stuff (async ...

If multiple threads call System.out.println(String) without synchronization, can the output get interleaved? Or is the write of each line atomic? The API makes no mention of synchronization, so thi...

I just want to know, we usually close streams at the end, but why don't we close System.out PrintStream with System.out.close()?

I'm using a wayward library that, unfortunately, prints information to System.out (or occasionally System.err). What's the simplest way to prevent this? I've been thinking about creating an output...

I was looking at someone's code and saw that he repeatedly declared PrintStream out = System.out; and later called out.println("blah"); I actually thought this was kind of neat. Is this a com...

Somewhat to my surprise, the following code prints out "Close" twice. Running through the debugger, it seems MyPrintStream.close() calls super.close(), which ends up calling MyPrintStream.close() a...