/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		byte[] b = new byte[4];
 // 03 00 00 00
 // 00 28 00 00
 // AA 64 FE 00
		b[0] = (byte)0xaa;
		b[1] = (byte)0x64;
		b[2] = (byte)0xfe;
		b[3] = (byte)0x00;
 
		long val = 0;
		val += new Byte(b[3]).intValue();
        val += new Byte(b[2]).intValue();
        val += new Byte(b[1]).intValue();
        val += new Byte(b[0]).intValue();
 
		//long val = 0l;//ByteBuffer.wrap(b).order(ByteOrder.LITTLE_ENDIAN).getLong();
	long l = (long)b[0] & 0xFF;
l += ((long)b[1] & 0xFF) << 8;
l += ((long)b[2] & 0xFF) << 16;
l += ((long)b[3] & 0xFF) << 24;
		System.out.println(Long.toHexString(val) + ", " + String.valueOf(l));
	}
}

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