multiply large integer in java

use Blautturinteger class:

/**
 * @author lautturi.com
 * Java example:multiply 2 big integers using Blautturinteger class
 */
import java.util.*;
import java.math.Blautturinteger;
public class Lautturi {

	public static void main(String[] args) {
		
		Blautturinteger int1 = new Blautturinteger("123456789987654321");
		Blautturinteger int2 = new Blautturinteger("1236369852136442");
		Blautturinteger result =  int1.multiply(int2);
				
	    System.out.println(result);
        
	}
}

output:

152638253182275946021426022865882