Conversion of Big Endian to Little Endian Vise versa

[Thamaiyanthi Pitchaimuthu]

Hi All,

I have data of byte array which in a Big Endian order i want to convert into Little Endian.
Can you anybody help

Thanks

[Rob Spoor]

Check out https://coderanch.com/t/506908/java/java/ByteBuffer-Converting-Byte-Order-BigEndian

[Thamaiyanthi Pitchaimuthu]

Thanks Rob,

Is there any possiblity to convert without using API like ByteBuffer.

[Rob Spoor]

If it's a byte array just reverse the array:

for (int i = 0, j = array.length - 1; i < j; i++, j--)
{
    byte b = array[i];
    array[i] = array[j];
    array[j] = b;
}

[Thamaiyanthi Pitchaimuthu]

Thanks Rob,

instead of reversing i shifted the bytes and got the output,

firstByte << 24 ;
secondByte << 16 ;
thirdByte << 8 ;
fourthByte ;

Thanks a lot for response

[Akil Kumar]

Hi,

I want to send a int value to server in little endian so it should be converted to uint32. I have this method to convert from big endian to little endian. Can I run an endian converter on a byte array? Please let me know.

public static byte[] convertBigEndianToLittleEndianByteArray(int i)
{
ByteBuffer buffer = ByteBuffer.allocate(4);
buffer.order(ByteOrder.LITTLE_ENDIAN).putInt(i);
byte [] b = buffer.array();
System.out.print("Little endian buffer of " + i + " = ");
for(int x=0; x<b.length; x++) System.out.print(b[x] + " ");
System.out.println();
return b;
}

Thanks,

[Akil Kumar]

Can anyone please help me on this question? I need to get this done.

Thanks,

[Stephan van Hulst]

Take a look here:
https://coderanch.com/t/522479/java/java/Write-Binary-File-Java-read#2366837

[Akil Kumar]

Thanks Stephan