Example usage for java.io BufferedInputStream read

Introduction

In this page you can find the example usage for java.io BufferedInputStream read.

Prototype

public synchronized int read(byte b[], int off, int len) throws IOException 

Source Link

Document

Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    InputStream is = Main.class.getResourceAsStream("image.gif");
    BufferedInputStream bis = new BufferedInputStream(is);
    byte[] byBuf = new byte[10000];

    int byteRead = bis.read(byBuf, 0, 10000);
    Image img = Toolkit.getDefaultToolkit().createImage(byBuf);
}

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From source file:Main.java

  public static void main(String[] args) throws IOException {
  ServerSocket servsock = new ServerSocket(123456);
  File myFile = new File("s.pdf");
  while (true) {//from w  ww  . ja  va 2s  . c  om
    Socket sock = servsock.accept();
    byte[] mybytearray = new byte[(int) myFile.length()];
    BufferedInputStream bis = new BufferedInputStream(new FileInputStream(myFile));
    bis.read(mybytearray, 0, mybytearray.length);
    OutputStream os = sock.getOutputStream();
    os.write(mybytearray, 0, mybytearray.length);
    os.flush();
    sock.close();
  }
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream inStream = new FileInputStream("c:/test.txt");

    BufferedInputStream bis = new BufferedInputStream(inStream);

    // read number of bytes available
    int numByte = bis.available();

    // byte array declared
    byte[] buf = new byte[numByte];

    // read byte into buf , starts at offset 2, 3 bytes to read
    bis.read(buf, 2, 3);

    // for each byte in buf
    for (byte b : buf) {
        System.out.println((char) b + ": " + b);
    }//  w w  w  .ja  va 2 s .c o m
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String zipname = "data.zip";
    ZipFile zipFile = new ZipFile(zipname);
    Enumeration enumeration = zipFile.entries();
    while (enumeration.hasMoreElements()) {
        ZipEntry zipEntry = (ZipEntry) enumeration.nextElement();
        System.out.println("Unzipping: " + zipEntry.getName());
        BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(zipEntry));
        int size;
        byte[] buffer = new byte[2048];
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(zipEntry.getName()),
                buffer.length);/* w w  w.j  a  va 2  s . c  o m*/
        while ((size = bis.read(buffer, 0, buffer.length)) != -1) {
            bos.write(buffer, 0, size);
        }
        bos.flush();
        bos.close();
        bis.close();
    }
}

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From source file:com.manning.blogapps.chapter10.examples.AuthPostJava.java

public static void main(String[] args) throws Exception {
    if (args.length < 4) {
        System.out.println("USAGE: authpost <username> <password> <filepath> <url>");
        System.exit(-1);//from   w w  w .j  av  a  2  s  . c  om
    }
    String credentials = args[0] + ":" + args[1];
    String filepath = args[2];

    URL url = new URL(args[3]);
    URLConnection conn = url.openConnection();
    conn.setDoOutput(true);

    conn.setRequestProperty("Authorization",
            "Basic " + new String(Base64.encodeBase64(credentials.getBytes())));

    File upload = new File(filepath);
    conn.setRequestProperty("name", upload.getName());

    String contentType = "application/atom+xml; charset=utf8";
    if (filepath.endsWith(".gif"))
        contentType = "image/gif";
    else if (filepath.endsWith(".jpg"))
        contentType = "image/jpg";
    conn.setRequestProperty("Content-type", contentType);

    BufferedInputStream filein = new BufferedInputStream(new FileInputStream(upload));
    BufferedOutputStream out = new BufferedOutputStream(conn.getOutputStream());
    byte buffer[] = new byte[8192];
    for (int count = 0; count != -1;) {
        count = filein.read(buffer, 0, 8192);
        if (count != -1)
            out.write(buffer, 0, count);
    }
    filein.close();
    out.close();

    String s = null;
    BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
    while ((s = in.readLine()) != null) {
        System.out.println(s);
    }
}

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From source file:Main.java

public static byte[] readZipEntry(File zfile, ZipEntry entry) throws ZipException, IOException {
    Log.d("file3: ", zfile.toString());
    Log.d("zipEntry3: ", entry.toString());
    ZipFile zipFile = new ZipFile(zfile);
    if (entry != null && !entry.isDirectory()) {
        byte[] barr = new byte[(int) entry.getSize()];
        int read = 0;
        int len = 0;
        InputStream is = zipFile.getInputStream(entry);
        BufferedInputStream bis = new BufferedInputStream(is);
        int length = barr.length;
        while ((len = bis.read(barr, read, length - read)) != -1) {
            read += len;//  ww  w.j  a va  2s .  c  o m
        }
        bis.close();
        is.close();
        zipFile.close();
        return barr;
    } else {
        zipFile.close();
        return new byte[0];
    }
}

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From source file:com.phonegap.plugins.xapkreader.XAPKReader.java

private static byte[] readFile(Context ctx, String filename) throws IOException {
    // Get APKExpensionFile
    ZipResourceFile expansionFile = APKExpansionSupport.getAPKExpansionZipFile(ctx, XAPKReader.mainVersion,
            XAPKReader.patchVersion);/*from w ww .  j  a v  a 2s .  c o m*/

    if (null == expansionFile) {
        Log.e("XAPKReader", "APKExpansionFile not found.");
        return null;
    }

    // Find file in ExpansionFile
    String fileName = Helpers.getExpansionAPKFileName(ctx, true, XAPKReader.patchVersion);
    fileName = fileName.substring(0, fileName.lastIndexOf("."));
    AssetFileDescriptor file = expansionFile.getAssetFileDescriptor(fileName + "/" + filename);

    if (null == file) {
        Log.e("XAPKReader", "File not found (" + filename + ").");
        return null;
    }

    // Read file
    int size = (int) file.getLength();
    byte[] data = new byte[size];
    BufferedInputStream buf = new BufferedInputStream(file.createInputStream());
    buf.read(data, 0, data.length);
    buf.close();

    return data;
}

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From source file:Main.java

public static String readInputStream(InputStream i) throws IOException {
    BufferedInputStream s = new BufferedInputStream(i);
    byte[] buf = new byte[512];
    int len = -1;
    StringBuilder sb = new StringBuilder();

    while ((len = s.read(buf, 0, buf.length)) != -1) {
        sb.append(new String(buf, 0, len));
    }/*from w  w w  . j  a  v a2 s  .c o m*/

    return sb.toString();
}

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From source file:librarymanagementsystem.Base64Converter.java

/**
 * This method loads a file from file system and returns the byte array of
 * the content.//from  www  .  ja v  a 2 s  .  c om
 */
public static byte[] loadFileAsBytesArray(String fileName) throws Exception {

    File file = new File(fileName);
    int length = (int) file.length();
    BufferedInputStream reader = new BufferedInputStream(new FileInputStream(file));
    byte[] bytes = new byte[length];
    reader.read(bytes, 0, length);
    reader.close();
    return bytes;

}

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From source file:Main.java

public static byte[] readFileToMemory(File file) throws IOException {
    FileInputStream fis = new FileInputStream(file);
    BufferedInputStream bis = new BufferedInputStream(fis);
    byte[] data = new byte[(int) file.length()];
    int start = 0;
    int read = 0;
    while ((read = bis.read(data, start, data.length - start)) > 0) {
        start += read;/*from w  ww  . j  a v a  2  s  .co  m*/
    }
    bis.close();
    fis.close();
    return data;
}

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