BigInteger to String

In this chapter you will learn:

How to Convert BigInteger to String
How to convert BigInteger to String with given radix

Convert BigInteger to String

String toString() Returns the decimal String representation of this BigInteger.

import java.math.BigInteger;
/*  j  a  v  a  2  s . com*/
public class Main {
  public static void main(String[] argv) throws Exception {
    BigInteger bi = new BigInteger("1023"); 
    String s = bi.toString();
    System.out.println(s);
  }
}

The output:

Convert BigInteger to String with given radix

String toString(int radix) Returns the String representation of this BigInteger in the given radix.

import java.math.BigInteger;
/*j  av a  2  s. com*/
public class Main {
  public static void main(String args[]) {
    BigInteger n = new BigInteger( new byte[] { 0x1, 0x00, 0x00 } );
    System.out.println(n.toString(10));
  }
}