Example usage for java.io FileInputStream FileInputStream

Introduction

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

Prototype

public FileInputStream(FileDescriptor fdObj)

Source Link

Document

Creates a FileInputStream by using the file descriptor fdObj, which represents an existing connection to an actual file in the file system.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Properties config = new Properties();
    config.load(new FileInputStream("conf-file.pros"));

    Enumeration en = config.keys();
    while (en.hasMoreElements()) {
        String key = (String) en.nextElement();
        System.out.println(key + ":" + config.get(key));
    }//from ww w. jav a2 s .c om
}

From source file:Main.java

public static void main(String[] args) throws IOException {

    int i = 0;// w w  w  .  j a v a  2s .c om
    // create new file input stream
    FileInputStream fis = new FileInputStream("C://test.txt");

    // read till the end of the file
    while ((i = fis.read()) != -1) {
        // converts integer to character
        char c = (char) i;
        System.out.print(c);
    }
}

From source file:Main.java

public static void main(String[] args) throws FileNotFoundException {

    Scanner scanner = new Scanner(new FileInputStream("c:/text.txt").getChannel());

    System.out.println(scanner.nextLine());

    // change the radix of the scanner
    scanner.useRadix(32);/* w  w  w.jav  a 2s  .c  o m*/

    // display the new radix
    System.out.println(scanner.radix());

    scanner.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream("infilename"), "8859_1"));
    String str = in.readLine();/*from  w w  w  .j a  v  a  2  s.  c  om*/
    System.out.println(str);
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    InputStream is = new FileInputStream("c:\\test.txt");
    DataInputStream dis = new DataInputStream(is);

    int length = dis.available();

    byte[] buf = new byte[length];

    dis.readFully(buf);//from  ww w .  j a v a2  s.  c o  m

    for (byte b : buf) {
        char c = (char) b;
        System.out.print(c);
    }

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ReadableByteChannel channel = new FileInputStream("infile.dat").getChannel();

    ByteBuffer buf = ByteBuffer.allocateDirect(10);

    int numRead = 0;
    while (numRead >= 0) {
        buf.rewind();// w  w w  .j  av a 2  s  .c om

        numRead = channel.read(buf);

        buf.rewind();

        for (int i = 0; i < numRead; i++) {
            byte b = buf.get();
        }
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ReadableByteChannel channel = new FileInputStream("infile").getChannel();

    ByteBuffer buf = ByteBuffer.allocateDirect(10);

    int numRead = 0;
    while (numRead >= 0) {
        buf.rewind();// w  ww.j  av a  2  s.c o  m

        numRead = channel.read(buf);

        buf.rewind();

        for (int i = 0; i < numRead; i++) {
            byte b = buf.get();
        }
    }
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    Properties p = new Properties();
    p.load(new FileInputStream("test.txt"));
    Enumeration e = p.propertyNames();

    for (; e.hasMoreElements();) {
        System.out.println(e.nextElement());

    }/*from   ww w .  j  av a  2 s.c om*/
}

From source file:Main.java

public static void main(String[] args) throws IOException {

    int i;//www  . jav  a 2  s  .  c o  m
    FileInputStream fis = new FileInputStream("C:/test.txt");
    LineNumberInputStream lnis = new LineNumberInputStream(fis);

    while ((i = lnis.read()) != -1) {
        char c = (char) i;

        if (i != 10) {
            System.out.println("Character read: " + c);

            int j = lnis.getLineNumber();
            System.out.println(" at line: " + j);
        }
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {

    InputStream is = new FileInputStream("c:/test.txt");

    InputStreamReader isr = new InputStreamReader(is);

    BufferedReader br = new BufferedReader(isr);

    boolean bool = false;

    bool = br.markSupported();//  w  ww .j a v a 2 s  .  co  m

    System.out.println("Buffered reader supports mark : " + bool);

}