Retrieve the current bits in a byte array in twos-complement form.

   

  
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);
    bytes = bi.toByteArray();
  }
}

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Retrieve the current bits in a byte array in twos-complement form. : BigInteger « Data Type « Java

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