* This program calculates the powers of 2 from power = o to power = 20 and adds them together * For example, to add all powers of 2 from power = 2 to power = 4 then the result is: * 2^2 = 4 plus 2^3 = 8 plus 2^4 = 16 so the final result is: 4+8+16 = 28 */ public class PrintAllPowers { public static void main(String[] args) { //-----------Start below here. To do: approximate lines of code = 1 // Create an integer variable called sum and initialize it to @ -End here. Please do not remove this comment. Reminder: no changes outside the todo regions. //-----------Start below here. To do: approximate lines of code = 2 // Write a for loop that counts from 0 to 20 (inclusive). Declare and use a variable called power as the loop variable // Inside the loop use the Math.pow(double a, double b) function compute 2-power and add it to the sum variable ---End here. Please do not remove this comment. Reminder: no changes outside the todo regions. System.out.println("Sum = " + sum ) ; System.out.println("Expected: "); System.out.println("Sum = " + 2097151) ; //-----------Start below here. To do: approximate lines of code = 6 // Reset sum variable to and then repeat the loop as above // Inside the loop, instead of calling Math.pow, use an inner loop to calculate 2^power and add the result to the sum variable 11- -End here. Please do not remove this comment. Reminder: no changes outside the todo regions. System.out.println("Sum = " + sum ) ; System.out.println("Expected: "); System.out.println("Sum = " + 2097151); } }