Example usage for java.io RandomAccessFile close

List of usage examples for java.io RandomAccessFile close

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Introduction

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

Prototype

public void close() throws IOException

Source Link

Document

Closes this random access file stream and releases any system resources associated with the stream.

Usage

From source file:Main.java

public static void main(String[] args) {
    try {//from  w w w.  j av  a2  s .c om
        RandomAccessFile raf = new RandomAccessFile("c:\\temp\\RAFsample.txt", "rw");
        raf.writeInt(10);
        raf.writeInt(43);
        raf.writeInt(88);
        raf.writeInt(455);

        raf.seek((3 - 1) * 4);
        raf.writeInt(99);
        raf.seek(0);
        int i = raf.readInt();
        while (i != -1) {
            System.out.println(i);

            i = raf.readInt();
        }
        raf.close();
    } catch (IOException e) {
    }
}

From source file:Main.java

public static void main(String[] args) {
    try {/*from w ww.ja v  a  2  s . co  m*/
        RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

        raf.writeUTF("java2s.com Hello World");

        // set the file pointer at 0 position
        raf.seek(0);

        // read and print the contents of the file
        System.out.println(raf.readUTF());

        // return the channel of the file
        System.out.println(raf.getChannel());

        // close the strea and release resources
        raf.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {
    try {//from  w  ww  .  ja  v a  2 s. c om
        RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

        raf.writeUTF("java2s.com Hello World");

        // set the file pointer at 0 position
        raf.seek(0);

        // read and print the contents of the file
        System.out.println(raf.readUTF());

        // return the file descriptor of the stream
        System.out.println(raf.getFD());

        // close the strea and release resources
        raf.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}

From source file:Main.java

public static void main(String[] args) {
    try {//w w  w . j  av a 2 s.  c o  m

        RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

        // write something in the file
        raf.writeUTF("Hello World from java2s.com");

        // set the file pointer at 0 position
        raf.seek(0);

        // print the byte
        System.out.println(raf.readUnsignedByte());

        // set the file pointer at 7 position
        raf.seek(7);

        System.out.println(raf.readUnsignedByte());
        raf.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    RandomAccessFile file = new RandomAccessFile("scores.html", "rw");
    for (int i = 1; i <= 6; i++) {
        System.out.println(file.readLine());
    }//from  w  ww.  j  av a  2  s .c o  m
    long current = file.getFilePointer();
    file.seek(current + 6);
    file.write("34".getBytes());
    for (int i = 1; i <= 5; i++) {
        System.out.println(file.readLine());
    }
    current = file.getFilePointer();
    file.seek(current + 6);
    file.write("27".getBytes());
    file.close();
}

From source file:Main.java

public static void main(String[] args) {
    try {//  ww  w  .  j  a va2 s.c o m
        String s = "Hello World from java2s.com";

        RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

        raf.writeChars(s);

        raf.seek(0);

        for (int i = 0; i < 15; i++) {
            System.out.println(raf.readChar());
        }

        raf.seek(0);

        raf.writeChars("This is an example from java2s.com");

        raf.seek(0);

        for (int i = 0; i < 20; i++) {
            System.out.println(raf.readChar());
        }
        raf.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}

From source file:Main.java

public static void main(String[] args) {
    try {/*from  ww w.  j  av  a 2  s. c o m*/
        RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

        raf.writeUTF("Hello World from java2s.com");

        // set the file pointer at 0 position
        raf.seek(0);

        // print the string
        System.out.println(raf.readUTF());

        // print current length
        System.out.println(raf.length());

        // set the file length to 30
        raf.setLength(30);

        System.out.println(raf.length());
        raf.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}

From source file:Main.java

public static void main(String[] args) {
    try {/*from ww  w .  j av a  2s .  c  om*/

        RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

        // write something in the file
        raf.writeUTF("java2s.com Hello World");

        // set the file pointer at 0 position
        raf.seek(0);

        // read the first byte and print it
        System.out.println(raf.read());

        // set the file pointer at 4rth position
        raf.seek(4);

        // read the first byte and print it
        System.out.println(raf.read());
        raf.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}

From source file:MainClass.java

public static void main(String[] args) {
    try {//from ww  w .j  a v  a  2s .c o  m
        RandomAccessFile raf = new RandomAccessFile("c:\\temp\\RAFsample.txt", "rw");
        raf.writeInt(10);
        raf.writeInt(43);
        raf.writeInt(88);
        raf.writeInt(455);

        // change the 3rd integer from 88 to 99
        raf.seek((3 - 1) * 4);
        raf.writeInt(99);
        raf.seek(0); // go to the first integer
        int i = raf.readInt();
        while (i != -1) {
            System.out.println(i);

            i = raf.readInt();
        }
        raf.close();
    } catch (IOException e) {
    }
}

From source file:Main.java

public static void main(String[] args) {
    try {/* w  w w. j av  a2s . c  o  m*/
        byte[] b1 = { 1, 2, 3 };
        byte[] b2 = { 1, 2, 3, 4, 5, 6, 7, 8 };

        RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw");

        // write something in the file
        raf.writeUTF("Hello World from java2s.com");

        // set the file pointer at 0 position
        raf.seek(0);

        // read 2 bytes, starting from 1
        System.out.println(raf.read(b1, 1, 2));

        // set the file pointer at 0 position
        raf.seek(0);

        // read 3 bytes, starting from 4rth
        System.out.println(raf.read(b2, 4, 3));
        raf.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }

}