Flip a bit in a BigInteger : BigInteger « Data Type « Java Tutorial

1. Java Tutorial
2. Data Type
3. BigInteger

import java.math.BigInteger;

public class Main {
  public static void main(String[] argv) throws Exception {
    byte[] bytes = new byte[] { 0x1, 0x00, 0x00 }; 
    BigInteger bi = new BigInteger(bytes);
    bi = bi.flipBit(3);

  }
}