Example usage for java.io ObjectOutputStream writeChars

Introduction

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

Prototype

public void writeChars(String str) throws IOException 

Source Link

Document

Writes a String as a sequence of chars.

Usage

From source file:Main.java

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

    ObjectOutputStream out = new ObjectOutputStream(
            new BufferedOutputStream(new FileOutputStream("file.data")));
    out.writeChars("java2s.com");
    out.close();/*from w  w w  .ja v  a2 s  .c o  m*/

    ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(new FileInputStream("file.data")));

    byte[] byteArray = new byte[10];
    in.read(byteArray);
    System.out.println(Arrays.toString(byteArray));
    in.close();
}

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From source file:DataIOTest2.java

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

    // write the data out
    ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("invoice1.txt"));

    double[] prices = { 19.99, 9.99, 15.99, 3.99, 4.99 };
    int[] units = { 12, 8, 13, 29, 50 };
    String[] descs = { "Java T-shirt", "Java Mug", "Duke Juggling Dolls", "Java Pin", "Java Key Chain" };

    for (int i = 0; i < prices.length; i++) {
        out.writeDouble(prices[i]);/*ww w .j a v a2s  .  c  o m*/
        out.writeChar('\t');
        out.writeInt(units[i]);
        out.writeChar('\t');
        out.writeChars(descs[i]);
        out.writeChar('\n');
    }
    out.close();

    // read it in again
    ObjectInputStream in = new ObjectInputStream(new FileInputStream("invoice1.txt"));

    double price;
    int unit;
    String desc;
    double total = 0.0;

    try {
        while (true) {
            price = in.readDouble();
            in.readChar(); // throws out the tab
            unit = in.readInt();
            in.readChar(); // throws out the tab
            desc = in.readLine();
            System.out.println("You've ordered " + unit + " units of " + desc + " at $" + price);
            total = total + unit * price;
        }
    } catch (EOFException e) {
    }
    System.out.println("For a TOTAL of: $" + total);
    in.close();
}

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