Top "Java-io" questions

How to check whether an OutputStream is closed

Is there anyway to check whether an OutputStream is closed without attempting to write to it and catching the IOException? …

java outputstream java-io

Reading a text file line by line in android

hi i just started learning android development and i'm trying to build an app that reads text from files. i …

java android java-io

How to use flush() for PrintWriter

I have some codes like this: PrintWriter pw = new PrintWriter(new BufferedReader(....)); for(int i=0; i<10; i++) { pw.println("…

java java-io

How to overwrite file via java nio writer?

I try files writer as follows: String content = "Test File Content"; I used as like : Files.write(path, content.getBytes(), …

java io nio java-io

InputStream, mark(), reset()

How are mark() and reset() methods working exactly(in code below), step by step ? I tried to write my own …

java java-io

Should I buffer the InputStream or the InputStreamReader?

What are the differences (if any) between the following two buffering approaches? Reader r1 = new BufferedReader(new InputStreamReader(in, "UTF-8"), …

java buffering java-io bufferedreader bufferedinputstream

Process Builder waitFor() issue and Open file limitations

I have inherited some code: Process p = new ProcessBuilder("/bin/chmod", "777", path).start(); p.waitFor(); Basically, there is for some …

java java-io processbuilder

Should I always wrap an InputStream as BufferedInputStream?

Does it make sense to always wrap an InputStream as BufferedInputStream, when I know whether the given InputStream is something …

java stream java-io

what is the difference in using InputStream instead of FileInputStream while creating the FileInputStream object

This may be a silly one, but I want to know the background operation difference. InputStream is = new FileInputStream(filepath); …

java file inputstream java-io fileinputstream

Converting transparent gif / png to jpeg using java

I'd like to convert gif images to jpeg using Java. It works great for most images, but I have a …

java transparency jpeg gif java-io