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:Main.java

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

    FileInputStream fis = new FileInputStream("C://test.txt");

    int i = fis.read();

    char c = (char) i;

    System.out.println(c);/*w  w w.j  a  v a2  s  . c  o  m*/

    // close file input stream
    fis.close();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File file = new File("C:/String.txt");
    StringBuffer strContent = new StringBuffer();
    FileInputStream fin = new FileInputStream(file);
    int ch;/*w  ww . j a  v a  2s  . co m*/
    while ((ch = fin.read()) != -1) {
        strContent.append((char) ch);
    }
    fin.close();
    System.out.println(strContent);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    FileInputStream file = null;
    file = new FileInputStream("main.java");
    byte x = (byte) file.read();
    System.out.println(x);//from  w  w  w  .  j a v a 2  s.c  om
    file.close();

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    FileInputStream fin = new FileInputStream("test.txt");
    int i;//from   w  w  w. j av a  2 s  . com
    do {
        i = fin.read();
        if (i != -1)
            System.out.printf("%02X ", i);
    } while (i != -1);
    fin.close();
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    FileInputStream fin = new FileInputStream("a.zip");
    Checksum cs = new CRC32();
    for (int b = fin.read(); b != -1; b = fin.read()) {
        cs.update(b);//w ww.j  a v  a  2 s  .  c o  m
    }
    System.out.println(cs.getValue());
    fin.close();
}

From source file:Main.java

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

    byte[] buffer = { 65, 66, 67, 68, 69 };
    int i = 0;/*w  w  w.  ja v  a2  s  .  co m*/
    OutputStream os = new FileOutputStream("C://test.txt");
    FilterOutputStream fos = new FilterOutputStream(os);

    // writes buffer to the output stream
    fos.write(buffer, 2, 3);

    // forces byte contents to written out to the stream
    fos.flush();

    // create input streams
    FileInputStream fis = new FileInputStream("C://test.txt");

    while ((i = fis.read()) != -1) {
        // converts integer to the character
        char c = (char) i;

        System.out.println("Character read: " + c);
    }
    fos.close();
    fis.close();
}

From source file:Main.java

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

    byte[] buffer = { 65, 66, 67, 68, 69 };
    int i = 0;/* w w  w .ja  va  2s . c o  m*/

    OutputStream os = new FileOutputStream("C://test.txt");
    FilterOutputStream fos = new FilterOutputStream(os);

    // writes buffer to the output stream
    fos.write(buffer);

    // forces byte contents to written out to the stream
    fos.flush();

    // create input streams
    FileInputStream fis = new FileInputStream("C://test.txt");

    while ((i = fis.read()) != -1) {
        // converts integer to the character
        char c = (char) i;
        System.out.println("Character read: " + c);
    }
    fos.close();
    fis.close();
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    String outputFile = "a.zip";
    int level = 9;
    FileOutputStream fout = new FileOutputStream(outputFile);
    ZipOutputStream zout = new ZipOutputStream(fout);
    zout.setLevel(level);/*from  w w  w .j  ava  2  s .  c  o m*/

    ZipEntry ze = new ZipEntry("a.zip");
    FileInputStream fin = new FileInputStream("b.dat");
    zout.putNextEntry(ze);
    for (int c = fin.read(); c != -1; c = fin.read()) {
        zout.write(c);
    }
    fin.close();
    zout.close();
}

From source file:FileInputStreamDemo.java

public static void main(String args[]) throws Exception {
    FileInputStream fis = new FileInputStream(args[0]);

    // Read and display data
    int i;/* w  w w.j av  a 2s. c om*/
    while ((i = fis.read()) != -1) {
        System.out.println(i);
    }

    fis.close();

}

From source file:Main.java

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

    OutputStream os = new FileOutputStream("C://test.txt");
    FilterOutputStream fos = new FilterOutputStream(os);

    fos.write(65);// w ww  . j ava 2s. c  o m

    // forces byte contents to written out to the stream
    fos.flush();

    // create output streams
    FileInputStream fis = new FileInputStream("C://test.txt");

    // read byte
    int i = fis.read();

    // convert integer to characters
    char c = (char) i;

    System.out.print("Character read: " + c);
    fos.close();
    fis.close();
}