BigInteger.toByteArray

[Prosenjit Banerjee]

Javaranch is the BEST. I never seen before such a good site. THANKS JAVARANCH.COM.
Anyone please let me understand the process of converting a byte array to BigInteger BigInteger(byte arr[]) and converting a BigInteger to a byte array BigInteger.toByteArray().
Thanks in advance.

[Jane Griscti]

Hi Prosenjit,
Here's an example.

import java.math.BigInteger;
public class BigInt {
    public static void main(String[] args) {
        byte[] b1 = { 0x1, 0 };
        byte[] b2 = new byte[] { (byte) 128 };
        
        BigInteger bi1 = new BigInteger( b1 );
        BigInteger bi2 = new BigInteger( b2 );
        
        byte[] b3 = bi1.toByteArray();
        byte[] b4 = bi2.toByteArray();
    }
}

Hope that helps. I'm going to move this over to Java Beginner's as it's not related to Certification Study.
------------------
Jane Griscti
Sun Certified Programmer for the Java� 2 Platform