Java Utililty Methods Byte Array to Int

List of utility methods to do Byte Array to Int

  1. HOME
  2. Java
  3. B
  4. Byte Array to Int

Description

The list of methods to do Byte Array to Int are organized into topic(s).

Method

intbytesToInt(byte bytes[], int start)
bytes To Int 
int value = ((bytes[start + 3] & 255)) | ((bytes[start + 2] & 255) << 8) | ((bytes[start + 1] & 255) << 16)
        | ((bytes[start] & 255) << 24);
return value;
intbytesToInt(byte low, byte high)
This method combines two bytes into an integer. 
return ((int) low & 0xff) | (((int) high & 0xff) << 8);
intbytesToInt(byte[] array, int offset)
Extracts the big-endian integer starting at offset from array. 
int highWord = ((array[offset] & 0xff) << 24) | ((array[offset + 1] & 0xff) << 16);
int lowWord = ((array[offset + 2] & 0xff) << 8) | (array[offset + 3] & 0xff);
return highWord | lowWord;
intbytesToInt(byte[] array, int offset)
Unmarshal a byte array to an integer. 
int b1, b2, b3, b4;
b1 = (array[offset++] << 24) & 0xFF000000;
b2 = (array[offset++] << 16) & 0x00FF0000;
b3 = (array[offset++] << 8) & 0x0000FF00;
b4 = (array[offset++] << 0) & 0x000000FF;
return (b1 | b2 | b3 | b4);
intbytesToInt(byte[] b)
Converts a byte array to a representative int 
return ((b[0] << 24) & 0xff000000) | ((b[1] << 16) & 0xff0000) | ((b[2] << 8) & 0xff00) | (b[3] & 0xff);
intbytesToInt(byte[] b)
bytes To Int 
int mask = 0xff;
int temp = 0;
int n = 0;
for (int i = 0; i < b.length; i++) {
    n <<= 8;
    temp = b[i] & mask;
    n |= temp;
return n;
intbytesToInt(byte[] b)
bytes To Int 
return bytesToInt(b[0], b[1], b[2], b[3]);
intbytesToInt(byte[] b)
bytes To Int 
int i = (b[0] << 24) & 0xFF000000;
i |= (b[1] << 16) & 0xFF0000;
i |= (b[2] << 8) & 0xFF00;
i |= b[3] & 0xFF;
return i;
intbytesToInt(byte[] b)
Converts a byte array into an integer. 
if (b.length < 4) {
    throw new IllegalArgumentException("The length of the byte array should be >= 4");
return ((b[3] & BYTESIZE)) + ((b[2] & BYTESIZE) << 8) + ((b[1] & BYTESIZE) << 16)
        + ((b[0] & BYTESIZE) << 24);
intbytesToInt(byte[] b, int i)
bytes To Int 
return ((((b[i + 3]) & 0xff) << 0) | (((b[i + 2]) & 0xff) << 8) | (((b[i + 1]) & 0xff) << 16)
        | (((b[i + 0]) & 0xff) << 24));