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

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Java Tutorial » Data Type » BigInteger

2. 45. 22. 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();

  }

}

2. 45. BigInteger
	2. 45. 1.	Create BigInteger via string
	2. 45. 2.	Create BigInteger via long type variable
	2. 45. 3.	Create BigInteger from byte array
	2. 45. 4.	Operating with Big Integer Values
	2. 45. 5.	Multiply one BigInteger to another BigInteger
	2. 45. 6.	Subtract one BigInteger from another BigInteger
	2. 45. 7.	Divide one BigInteger from another BigInteger
	2. 45. 8.	Negate a BigInteger
	2. 45. 9.	Calculate the power on a BigInteger
	2. 45. 10.	Performing Bitwise Operations with BigInteger
	2. 45. 11.	Get the value of a bit
	2. 45. 12.	Set a bit for BigInteger
	2. 45. 13.	Clear a bit in a BigInteger
	2. 45. 14.	Flip a bit in a BigInteger
	2. 45. 15.	Shift the bits in a BigInteger
	2. 45. 16.	Shift right in a BigInteger
	2. 45. 17.	xor a BigInteger
	2. 45. 18.	and operation on BigInteger
	2. 45. 19.	not operation for BigInteger
	2. 45. 20.	or operation for BigInteger
	2. 45. 21.	antNot operation on BigInteger
	2. 45. 22.	Retrieve the current bits in a byte array in twos-complement form.
	2. 45. 23.	Parse octal string to create BigInteger
	2. 45. 24.	Parse decimal string to create BigInteger
	2. 45. 25.	Parse hexadecimal string to create BigInteger
	2. 45. 26.	Parsing and Formatting a Big Integer into Binary
	2. 45. 27.	Parsing and Formatting a Big Integer into octal
	2. 45. 28.	Parsing and Formatting a Big Integer into decimal
	2. 45. 29.	Parsing and Formatting a Byte Array into Binary
	2. 45. 30.	Parsing and Formatting a Byte Array into Octal
	2. 45. 31.	Parsing and Formatting a Byte Array into decimal
	2. 45. 32.	Parsing and Formatting a Byte Array into Hexadecimal
	2. 45. 33.	Parse and format to hexadecimal
	2. 45. 34.	Parse and format to arbitrary radix <= Character.MAX_RADIX
	2. 45. 35.	Parse binary string
	2. 45. 36.	Convert BigInteger into another radix number
	2. 45. 37.	Do math operation for BigInteger
	2. 45. 38.	Operate with big integer values in code
	2. 45. 39.	Get byte array from BigInteger
	2. 45. 40.	BigInteger.isProbablePrime
	2. 45. 41.	performing the modular exponential
	2. 45. 42.	Use BigInteger
	2. 45. 43.	Get BigInteger from an object

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