Example usage for java.io InputStream read

Introduction

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

Prototype

public abstract int read() throws IOException;

Source Link

Document

Reads the next byte of data from the input stream.

Usage

From source file:Main.java

public static final int readInt(InputStream i) throws IOException, EOFException {
    InputStream in = i;
    int ch1 = in.read();
    int ch2 = in.read();
    int ch3 = in.read();
    int ch4 = in.read();
    if ((ch1 | ch2 | ch3 | ch4) < 0)
        throw new EOFException();
    return ((ch1 << 24) + (ch2 << 16) + (ch3 << 8) + (ch4 << 0));
}

From source file:Main.java

public static int readUnsignedInt24(InputStream in) throws IOException {
    return ((in.read() & 0xff) << 16) | ((in.read() & 0xff) << 8) | (in.read() & 0xff);
}

From source file:Main.java

public static int readUnsignedInt16(InputStream in) throws IOException {
    return ((in.read() & 0xff) << 8) | (in.read() & 0xff);
}

From source file:Main.java

public static int readUnsignedInt32(InputStream in) throws IOException {
    return ((in.read() & 0xff) << 24) | ((in.read() & 0xff) << 16) | ((in.read() & 0xff) << 8)
            | (in.read() & 0xff);/*from   ww w .  ja  va2 s.c om*/
}

From source file:Main.java

public static String inputStreamToString(InputStream inputStream) throws IOException {
    StringWriter sw = new StringWriter();
    int c;//from w  ww.j  av  a 2 s  .  com
    InputStream in = inputStream;
    while ((c = in.read()) != -1) {
        sw.write(c);
    }
    return sw.toString();
}

From source file:Main.java

public static long getCRC32(InputStream in) throws IOException {
    Checksum cs = new CRC32();

    for (int b = in.read(); b != -1; b = in.read()) {
        cs.update(b);//ww w .  j a v  a  2s  .  c om
    }
    return cs.getValue();
}

From source file:Main.java

public static final int Read1(InputStream in) {
    try {//from   ww  w  .ja v a 2  s  .  com
        return ((int) in.read() & 0xff);
    } catch (IOException e) {
        return -1;
    }
}

From source file:Main.java

public static double readDouble(InputStream in) throws IOException {
    long bits = ((long) (in.read() & 0xff) << 56) | ((long) (in.read() & 0xff) << 48)
            | ((long) (in.read() & 0xff) << 40) | ((long) (in.read() & 0xff) << 32) | ((in.read() & 0xff) << 24)
            | ((in.read() & 0xff) << 16) | ((in.read() & 0xff) << 8) | (in.read() & 0xff);
    return Double.longBitsToDouble(bits);
}

From source file:Count.java

public static void countChars(InputStream in) throws IOException {
    int count = 0;

    while (in.read() != -1)
        count++;// w w  w. ja  v a 2  s .  c  om

    System.out.println("Counted " + count + " chars.");
}

From source file:Main.java

/**
 * Simple wrapper around {@link InputStream#read()} that throws EOFException
 * instead of returning -1./*from   w ww .  ja va2s . co  m*/
 */
public static int read(InputStream is) throws IOException {
    int b = is.read();
    if (b == -1) {
        throw new EOFException();
    }
    return b;
}