project euler 16 solution

project euler 16 solution

package projecteuler;  // replace 
import java.math.BigInteger;

/**
 *
 * @author Shohan
 */


public class euler16 {
    public static void main(String args[]){

        long  ans=0; // 64 bit data type in java
        char[] ara=new char[1000];   // create an array with 1000 index
        
        BigInteger num=new BigInteger("2"); // created BigInteger type obj named "num"
  
        int pow=1000;
            ara=num.pow(pow).toString().toCharArray(); // calculate the power of the 
            // "toString()" method is used to represent an object into a String
            // "toCharArray()"  method can be used to convert a String to an array of Character
            
                for(int i=0;i<ara.length;i++){
                    ans=ans+ara[i]-'0';  
                  //  System.out.print(ara[i]+" ");
                }
                
                System.out.println(" Sum of 2^1000 is : "+ans);
               int b[]=new int[10];
            
    }
   
}