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Questions tagged [fileinputstream]

FileInputStream is a Java class meant for reading streams of raw bytes.

A FileInputStream is a Java class for reading the contents of a file from a stream. When you perform a read() on the stream, the appropriate data is read from the file and returned to the application.

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getResourceAsStream() vs FileInputStream

I was trying to load a file in a webapp, and I was getting a FileNotFound exception when I used FileInputStream. However, using the same path, I was able to load the file when I did getResourceAsStream(). What is the difference between the two…
Vivin Paliath
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Get total size of file in bytes

Possible Duplicate: java get file size efficiently I have a File called filename which is located in E://file.txt. FileInputStream fileinputstream = new FileInputStream(filename); What I want to do is to calculate the size of this file in bytes.…
Illep
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How to convert FileInputStream to InputStream?

I just want to convert a FileInputStream to an InputStream, how can I do that? e.g FileInputStream fis = new FileInputStream("c://filename"); InputStream is = ?; fis.close();
ranjan
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What is the difference between Reader and InputStream?

What is the difference between Reader and InputStream? And when to use what? If I can use Reader for reading characters why I will use inputstream, I guess to read objects?
sab
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Why is using BufferedInputStream to read a file byte by byte faster than using FileInputStream?

I was trying to read a file into an array by using FileInputStream, and an ~800KB file took about 3 seconds to read into memory. I then tried the same code except with the FileInputStream wrapped into a BufferedInputStream and it took about 76…
ZimZim
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Android- how can I convert android.net.Uri object to java.net.URI object?

I am trying to get a FileInputStream object on an image that the user selects from the picture gallery. This is the android URI returned by android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI content://media/external/images/media/3 When I…
lostInTransit
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Android download PDF from URL then open it with a PDF reader

I am trying to write an app to download PDFs from a URL, store them on SD, then open by Adobe PDF reader or other apps (which ever is able to open the PDF). Until now, I had "successfully downloaded and stored it on SD card" (but every time when I…
sefirosu
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Usage of BufferedInputStream

Let me preface this post with a single caution. I am a total beginner when it comes to Java. I have been programming PHP on and off for a while, but I was ready to make a desktop application, so I decided to go with Java for various reasons. The…
Jason Watkins
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How to convert FileInputStream into string in java?

In my java project, I'm passing FileInputStream to a function, I need to convert (typecast FileInputStream to string), How to do it.?? public static void checkfor(FileInputStream fis) { String a=new String; a=fis //how to do convert…
bhushan23
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FileInputStream doesn't work with the relative path

I tried to create an object from FileInputStream and pass the relative value of a file to its constructor, but it doesn't work properly and threw a FileNotFoundException try { InputStream is = new FileInputStream("/files/somefile.txt"); } catch…
Mahmoud Elshamy
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Java FileInputStream ObjectInputStream reaches end of file EOF

I am trying to read the number of line in a binary file using readObject, but I get IOException EOF. Am I doing this the right way? FileInputStream istream = new FileInputStream(fileName); ObjectInputStream ois = new…
user69514
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Java fileinputstream using with url

How to input in the fileinputstream, a file to url? I enter the url in the Fileinputstream, but the output of the URL is wrong, because the link slashes are turned backwards like - from / to \ and the double slashes // are \ only one slash and…
weardstuff
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How to get files from resources folder. Spring Framework

I'm trying to unmarshal my xml file: public Object convertFromXMLToObject(String xmlfile) throws IOException { FileInputStream is = null; File file = new File(String.valueOf(this.getClass().getResource("xmlToParse/companies.xml"))); try…
Tom Wally
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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); FileInputStream is = new FileInputStream(filepath); What is the difference between the above two lines of code and in…
Mathan Kumar
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Force Delete all files from a folder

I have been using a specific piece of code to delete files from a folder but it is proving very problematic because maybe I forgot to close an InputStream or two. The code I have is so big that I am not be able to see all the Inputstreams that I…
Stanley Mungai
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