Example usage for java.lang Integer SIZE

Introduction

In this page you can find the example usage for java.lang Integer SIZE.

Prototype

int SIZE

To view the source code for java.lang Integer SIZE.

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Document

The number of bits used to represent an int value in two's complement binary form.

Usage

From source file:Main.java

public static void main(String[] args) {
    System.out.println(Integer.SIZE);
}

From source file:Main.java

public static void main(String[] arg) {
    System.out.println(Integer.SIZE);

}

From source file:Main.java

protected static byte[] getBytes(int i) {
    return ByteBuffer.allocate(Integer.SIZE / 8).putInt(i).array();
}

From source file:Main.java

public static byte[] intToByteArray(int value) {
    ByteBuffer buffer = ByteBuffer.allocate(Integer.SIZE / Byte.SIZE);
    buffer.order(ByteOrder.BIG_ENDIAN);
    buffer.putInt(value);/*w  ww .  j a va 2s  .  c  o m*/
    return buffer.array();
}

From source file:Main.java

public static byte[] intToByteArrayLE(int value) {
    ByteBuffer buffer = ByteBuffer.allocate(Integer.SIZE / Byte.SIZE);
    buffer.order(ByteOrder.LITTLE_ENDIAN);
    buffer.putInt(value);/*w  w w.  j av  a2 s  . com*/
    return buffer.array();
}

From source file:Main.java

public static int byteArrayToInt(byte[] bytes) throws IllegalArgumentException {
    if (bytes.length != (Integer.SIZE / Byte.SIZE)) {
        throw new IllegalArgumentException("Incorrect array size to convert to an int");
    }//from   ww  w.j  a  v a2  s .  co m
    ByteBuffer buffer = ByteBuffer.wrap(bytes);
    buffer.order(ByteOrder.BIG_ENDIAN);
    return buffer.getInt();
}

From source file:Main.java

public static int byteArrayToIntLE(byte[] bytes) throws IllegalArgumentException {
    if (bytes.length != (Integer.SIZE / Byte.SIZE)) {
        throw new IllegalArgumentException("Incorrect array size to convert to an int");
    }//from w w w.j a v  a2  s  . c  o  m
    ByteBuffer buffer = ByteBuffer.wrap(bytes);
    buffer.order(ByteOrder.LITTLE_ENDIAN);
    return buffer.getInt();
}

From source file:Main.java

/**
 * Convert a one or two byte array of bytes to an unsigned two-byte integer.
 * //from   w w  w .  j  av a  2 s  . co  m
 * <p><b>NOTE:</b> This function mostly exists as an example of how to use 
 * twoBytesToUnsignedInt(). It is unlikely the use case it embodies
 * will occur often.</p>
 * 
 * @param ba
 * @return
 */
public static int byteArrayToUnsignedInt(byte[] byteArray) {
    if (byteArray.length > Integer.SIZE)
        throw new IllegalArgumentException("Array length must match one of the following types:\n Byte=="
                + Byte.SIZE + ", Short==" + Short.SIZE + ", Integer==" + Integer.SIZE);

    return (int) byteArrayToUnsignedLong(byteArray);
}

From source file:Main.java

/**
 * Calculates the integer at the position <code>offset</code> in the buffer
 * @param buffer the offset of the integer
 * @param offset the buffer holding the integer.
 *
 * @return the calculated integer/*from   w  ww .j ava 2s.  c om*/
 */
public static int intFromBuffer(byte[] buffer, int offset) {
    int result = 0;
    for (int i = 0; i < Integer.SIZE / Byte.SIZE; i++) {
        result <<= Byte.SIZE;
        result |= (buffer[offset + i] & 0xFF);
    }
    return result;
}

From source file:Main.java

/**buffer methods*/

public static IntBuffer makeIntBuffer(int[] array) {
    final int integerSize = Integer.SIZE / 8;
    ByteBuffer byteBuffer = ByteBuffer.allocateDirect(array.length * integerSize);
    byteBuffer.order(ByteOrder.nativeOrder());
    IntBuffer intBuffer = byteBuffer.asIntBuffer();
    intBuffer.put(array);/*from  w  ww. ja  v  a 2  s. c o m*/
    intBuffer.position(0);
    return intBuffer;
}