Example usage for java.io FileInputStream read

Introduction

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

Prototype

public int read() throws IOException

Source Link

Document

Reads a byte of data from this input stream.

Usage

From source file:ByteReader.java

public static void main(String[] arguments) {
    try {/*from  ww  w  . j a v a 2  s.  co m*/
        FileInputStream file = new FileInputStream("class.dat");
        boolean eof = false;
        int count = 0;
        while (!eof) {
            int input = file.read();
            System.out.print(input + " ");
            if (input == -1)
                eof = true;
            else
                count++;
        }
        file.close();
        System.out.println("\nBytes read: " + count);
    } catch (IOException e) {
        System.out.println("Error - " + e.toString());
    }
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    FileInputStream fis = new FileInputStream(FileDescriptor.in);

    // skip bytes from file input stream
    fis.skip(4);//from w ww  .j a v  a2 s  .c  om

    // read bytes from this stream
    int i = fis.read();

    // converts integer to character
    char c = (char) i;
    System.out.print("Character read: " + c);
}

From source file:Copy.java

public static void main(String[] args) throws Exception {
    FileInputStream fis = null;
    FileOutputStream fos = null;/*from  w w w .j ava  2s  . c o  m*/
    fis = new FileInputStream(args[0]);
    fos = new FileOutputStream(args[1]);

    int byte_;
    while ((byte_ = fis.read()) != -1)
        fos.write(byte_);
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    FileInputStream fis = new FileInputStream(new File("C://test.txt"));

    // skip bytes from file input stream
    fis.skip(4);/*from  ww  w .  j a  va2s. c o m*/

    // read bytes from this stream
    int i = fis.read();

    // converts integer to character
    char c = (char) i;
    System.out.print("Character read: " + c);
}

From source file:FileDeflater.java

public static void main(String[] args) throws Exception {
    FileInputStream fin = new FileInputStream("a.dat");
    FileOutputStream fout = new FileOutputStream("b.dat");
    DeflaterOutputStream dos = new DeflaterOutputStream(fout);
    for (int c = fin.read(); c != -1; c = fin.read()) {
        dos.write(c);/*from ww w  . j  a v  a 2s . com*/
    }
    dos.close();
    fin.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Properties prop = new Properties();

    prop.put("Chapter Count", "200");
    prop.put("Tutorial Count", "15");
    prop.put("tutorial", "java2s.com");

    // create a output and input as a xml file
    FileOutputStream fos = new FileOutputStream("properties.xml");
    FileInputStream fis = new FileInputStream("properties.xml");

    prop.storeToXML(fos, "Properties Example", "ISO 8859");

    while (fis.available() > 0) {
        System.out.print((char) fis.read());
    }//from  w  w w . j a  v  a  2  s . co m

}

From source file:Main.java

public static void main(String[] args) throws IOException {
    String outputFile = "new.zip";
    int level = 9;
    int start = 1;

    FileOutputStream fout = new FileOutputStream(outputFile);
    ZipOutputStream zout = new ZipOutputStream(fout);
    zout.setLevel(level);/*from  w  ww. j  a va  2s .  c  o m*/
    for (int i = start; i < args.length; i++) {
        ZipEntry ze = new ZipEntry(args[i]);
        FileInputStream fin = new FileInputStream(args[i]);
        try {
            System.out.println("Compressing " + args[i]);
            zout.putNextEntry(ze);
            for (int c = fin.read(); c != -1; c = fin.read()) {
                zout.write(c);
            }
        } finally {
            fin.close();
        }
    }
    zout.close();
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {
    String outputFile = "new.zip";
    // Default to maximum compression
    int level = 9;
    int start = 1;

    FileOutputStream fout = new FileOutputStream(outputFile);
    ZipOutputStream zout = new ZipOutputStream(fout);
    zout.setLevel(level);//w w  w  .java2s  .c o m
    for (int i = start; i < args.length; i++) {
        ZipEntry ze = new ZipEntry(args[i]);
        FileInputStream fin = new FileInputStream(args[i]);
        try {
            System.out.println("Compressing " + args[i]);
            zout.putNextEntry(ze);
            for (int c = fin.read(); c != -1; c = fin.read()) {
                zout.write(c);
            }
        } finally {
            fin.close();
        }
    }
    zout.close();
}

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com!";

    try {/*from w  w w.jav  a 2  s . c  o  m*/

        OutputStream os = new FileOutputStream("test.txt");
        OutputStreamWriter writer = new OutputStreamWriter(os);

        FileInputStream in = new FileInputStream("test.txt");

        writer.write(s, 0, 5);

        writer.flush();

        for (int i = 0; i < 5; i++) {
            System.out.print((char) in.read());
        }
        writer.close();
        in.close();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com!";

    try {/*from w w w. j av  a  2s  .  co  m*/

        OutputStream os = new FileOutputStream("test.txt");
        OutputStreamWriter writer = new OutputStreamWriter(os, Charset.defaultCharset().newEncoder());

        FileInputStream in = new FileInputStream("test.txt");

        writer.write(s, 0, 5);

        writer.flush();

        for (int i = 0; i < 5; i++) {
            System.out.print((char) in.read());
        }
        writer.close();
        in.close();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}