Java Math BigInteger.probablePrime() 方法

package com.codingdict;



import java.math.*;

import java.util.*;



public class BigIntegerDemo {



   public static void main(String[] args) {



      // create a BigInteger object

      BigInteger bi;



      // create and assign value to bitLength

      int bitLength = 3;



      // create a random object

      Random rnd = new Random();



      // assign probablePrime result to bi using bitLength and rnd

      // static method is called using class name

      bi = BigInteger.probablePrime(bitLength, rnd);



      String str = "ProbablePrime of bitlength " + bitLength + " is " +bi;



      // print bi value

      System.out.println( str );

   }

}