Example usage for java.io DataInputStream readFloat

Introduction

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

Prototype

public final float readFloat() throws IOException 

Source Link

Document

See the general contract of the readFloat method of DataInput.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileInputStream fin = new FileInputStream("C:/Float.txt");
    DataInputStream din = new DataInputStream(fin);

    float f = din.readFloat();
    System.out.println("float : " + f);
    din.close();//from  w  ww.  j a va2s.  c om
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Socket sock = new Socket(args[0], 1234);
    DataInputStream dis = new DataInputStream(sock.getInputStream());
    float f = dis.readFloat();
    System.out.println("PI=" + f);
    dis.close();//from   w  w w. java  2 s.com
    sock.close();
}

---

From source file:Main.java

public static void main(String[] args) throws IOException {
    float[] fbuf = { 12.34f, 23.34f, 45.56f, 67.78f, 12.55f, 77.88f };

    FileOutputStream fos = new FileOutputStream("c:\\test.txt");
    DataOutputStream dos = new DataOutputStream(fos);
    for (float f : fbuf) {
        dos.writeFloat(f);/*from ww  w  .ja  v  a 2 s. c  o  m*/
    }
    dos.flush();
    InputStream is = new FileInputStream("c:\\test.txt");
    DataInputStream dis = new DataInputStream(is);

    while (dis.available() > 0) {
        float c = dis.readFloat();
        System.out.print(c);
    }
}

---

From source file:Main.java

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

    float[] fbuf = { 123.345f, 234.567f, 123.123f, 123.123f, 123.123f, 123.345f };

    FileOutputStream fos = new FileOutputStream("c:\\test.txt");
    DataOutputStream dos = new DataOutputStream(fos);

    for (float f : fbuf) {
        dos.writeFloat(f);//w w w.  j  av a 2s . c om
    }

    dos.flush();

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

    DataInputStream dis = new DataInputStream(is);

    while (dis.available() > 0) {
        float c = dis.readFloat();
        System.out.print(c + " ");
    }
}

---

From source file:MainClass.java

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

        FileInputStream fis = new FileInputStream("fileName.dat");

        // Create a data input stream
        DataInputStream dis = new DataInputStream(fis);

        // Read and display data
        System.out.println(dis.readBoolean());
        System.out.println(dis.readByte());
        System.out.println(dis.readChar());
        System.out.println(dis.readDouble());
        System.out.println(dis.readFloat());
        System.out.println(dis.readInt());
        System.out.println(dis.readLong());
        System.out.println(dis.readShort());

        // Close file input stream
        fis.close();
    } catch (Exception e) {
        System.out.println("Exception: " + e);
    }
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileInputStream fin = new FileInputStream("myfile.dat");

    DataInputStream din = new DataInputStream(fin);
    while (true) {
        int theNumber = din.readInt();
        //double theNumber = din.readDouble();
        //System.out.println(din.readUTF());
        //boolean b = din.readBoolean();
        byte b = din.readByte();
        System.out.println("byte : " + b);
        System.out.println(theNumber);

        char ch = din.readChar();
        System.out.println("Char : " + ch);
        float f = din.readFloat();
        System.out.println("float : " + f);
        long l = din.readLong();
        System.out.println("long : " + l);

    }/*  w  w  w.  j  a  va2  s  .  c  o  m*/
}

---

From source file:Main.java

public static float[] convertB64Tofloat(byte[] a1) {
    byte[] a = decode(a1);
    try {/*from ww w  .ja  va  2  s . com*/
        ByteArrayInputStream is = new ByteArrayInputStream(a);
        DataInputStream di = new DataInputStream(is);
        float[] f = new float[a.length / 4];
        for (int i = 0; i < f.length; i++)
            f[i] = di.readFloat();
        return f;
    } catch (Exception s) {
        return null;
    }
}

---

From source file:Main.java

public static float[] readBinTextureArray(String dir, String fileName, int size) {
    float x;/* w ww .j a v  a 2s  . c o  m*/
    int i = 0;
    float[] tab = new float[size];
    File sdLien = Environment.getExternalStorageDirectory();
    File inFile = new File(sdLien + File.separator + dir + File.separator + fileName);
    Log.d(TAG, "path of file : " + inFile);
    if (!inFile.exists()) {
        throw new RuntimeException("File doesn't exist");
    }
    DataInputStream in = null;
    try {
        in = new DataInputStream(new FileInputStream(inFile));
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    try {
        x = in.readFloat(); // convert here for OpenGl
        while (true) {
            tab[i] = x / 255.0f;
            i++;
            x = in.readFloat(); // convert here for OpenGl
        }
    } catch (EOFException e) {
        try {
            Log.d(TAG, "close");
            in.close();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (in != null) {
            try { //free ressources
                Log.d(TAG, "close");
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return tab;
}

---

From source file:Main.java

public static float[] readBinFloat(String dir, String fileName, int size) {
    float x;//from ww  w . j ava 2 s. c om
    int i = 0;
    float[] tab = new float[size];
    File sdLien = Environment.getExternalStorageDirectory();
    File inFile = new File(sdLien + File.separator + dir + File.separator + fileName);
    Log.d(TAG, "path of file : " + inFile);
    if (!inFile.exists()) {
        throw new RuntimeException("File doesn't exist");
    }
    DataInputStream in = null;
    try {
        in = new DataInputStream(new FileInputStream(inFile));
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    try {
        x = in.readFloat();
        while (i < size) {
            tab[i] = x;
            i++;
            x = in.readFloat();
        }
    } catch (EOFException e) {
        try {
            Log.d(TAG, "close");
            in.close();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (in != null) {
            try { //free ressources
                Log.d(TAG, "close");
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return tab;
}

---

From source file:Main.java

public static float[] readFloats(String file) throws IOException {
    DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream(file), 4 * 1024));
    try {/*from w w  w. ja va 2 s  . co m*/
        int len = in.readInt();
        float[] floats = new float[len];
        for (int i = 0; i < len; i++) {
            floats[i] = in.readFloat();
        }
        return floats;
    } finally {
        in.close();
    }
}

---

• «
• 1
• 2
• 3
• »