new BigInteger(byte[] val) : BigInteger « java.math « Java by API

1. Java by API
2. java.math
3. BigInteger

new BigInteger(byte[] val)

  
import java.math.BigInteger;

public class Main {
  public static void main(String[] argv) throws Exception {
    // A negative value
    byte[] bytes = new byte[] { (byte) 0xFF, 0x00, 0x00 }; // -65536
    // A positive value
    bytes = new byte[] { 0x1, 0x00, 0x00 }; // 65536
    BigInteger bi = new BigInteger(bytes);
  }
}

   
    
  

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