I have a file and I want to parse data from this file. I tried but I can't get data which I want. I tried to copy/paste of my .data file but it didn't work because of some character that are included in my file.
Link of my file http://bit.ly/11meGwG
I don't know which type of file is this?
How to decode this?
InputStream is = null;
is = getResources().openRawResource(R.raw.myfile);
InputStreamReader isr = null;
isr = new InputStreamReader(is);
BufferedReader br=new BufferedReader(isr);
StringBuilder sb=new StringBuilder();
String line;
try {
while((line=br.readLine())!=null){
System.out.println(line);
sb.append(line+"\n");
}
isr.close();
You are using openRawResource(). This has nothing to do with your assets/ folder. openRawResource() is for your res/raw/ folder.
Use getAssets().open() to open a file within assets/.
Related
I have a csv file with characters like Cité, but after make the insert into the DB, I see this Cit¿
I open the file as a BufferedReader, but I don't know how to do it in UTF-8
BufferedReader br = new BufferedReader(new FileReader(csvFile));
You could explictly use a FileInputStream and an InputStreamReader using StandardCharsets.UTF_8, but it's probably simpler to use Files.newBufferedReader:
Path path = Paths.get(csvFile);
try (BufferedReader reader = Files.newBufferedReader(path)) {
// Use the reader
}
It's worth getting to know the Files class as it has a bunch of convenience methods like this.
You can use FileInputStream:
BufferedReader in = new BufferedReader(
new InputStreamReader(
new FileInputStream(fileDir), "UTF8"));
I'm reading the content from a file located on a server with the FTPClient from Apache Commons Net. It works fine when only reading once. But when I'm trying to read a second file, the InputStream of my FTPClient returns null. This is my code:
FTPClient ftpClient = new FTPClient();
ftpClient.connect("myhostname");
ftpClient.login("myusername", "mypassword");
// read InputStream from file
InputStream inputStream = ftpClient.retrieveFileStream("/my/firstfile.txt");
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
// read every line...
// close everything
inputStream.close();
bufferedReader.close();
// second try
inputStream = ftpClient.retrieveFileStream("/my/secondfile.txt");
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
// ...
inputStream.close();
bufferedReader.close();
What am I doing wrong?
After closing the InputStream, do the following:
ftpClient.completePendingCommand();
You can find more information in the javadoc of FTPClient#retrieveFileStream:
To finalize the file transfer you must call completePendingCommand and check its return value to verify success. If this is not done, subsequent commands may behave unexpectedly.
As the title suggests, is there any way to read a binary representation of a given file (.txt, .docx, .exe, etc...) in Java (or any other language)?
In java, I know how to read the content of a file as is, i.e:
String line;
BufferedReader br = new BufferedReader(new FileReader("myFile.txt"));
while ((line = br.readLine()) != null) {
System.out.println(line);
}
But I'm not sure (if it's possible) to read a binary representation of the file itself.
File file = new File(filePath);
byte[] bytes = new byte[(int)file.length()];
DataInputStream dataInputStream = new DataInputStream(new BufferedInputStream(new FileInputStream(filePath)));
dataInputStream.readFully(bytes);
dataInputStream.close();
bytes is a byte array with all of the data of the file in it
With that code
BufferedReader reader;
InputStream fis;
fis = Logs.class.getClassLoader().getResourceAsStream("data");
reader = new BufferedReader(new InputStreamReader(fis, Charset.forName("UTF-8")));
I can read from data file from src folder.
How can I read it from config folder?
And main question How can I write there?
Btw
getResourceAsStream("../config/data");
is not working, if I want to read from config directory.
I'm trying to read a text file line by line using InputStream from the assets directory in Android.
I want to convert the InputStream to a BufferedReader to be able to use the readLine().
I have the following code:
InputStream is;
is = myContext.getAssets().open ("file.txt");
BufferedReader br = new BufferedReader (is);
The third line drops the following error:
Multiple markers at this line
The constructor BufferedReader (InputStream) is undefinded.
What I'm trying to do in C++ would be something like:
StreamReader file;
file = File.OpenText ("file.txt");
line = file.ReadLine();
line = file.ReadLine();
...
What am I doing wrong or how should I do that? Thanks!
BufferedReader can't wrap an InputStream directly. It wraps another Reader. In this case you'd want to do something like:
BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
A BufferedReader constructor takes a reader as argument, not an InputStream. You should first create a Reader from your stream, like so:
Reader reader = new InputStreamReader(is);
BufferedReader br = new BufferedReader(reader);
Preferrably, you also provide a Charset or character encoding name to the StreamReader constructor. Since a stream just provides bytes, converting these to text means the encoding must be known. If you don't specify it, the system default is assumed.
InputStream is;
InputStreamReader r = new InputStreamReader(is);
BufferedReader br = new BufferedReader(r);