Exercise : Powers of 2

• Write a Java method printPowersOf2 that uses a cumulative algorithm to print out the powers of 2 up to 2^x. It should take a parameter that determines x; that is, the exponent of the highest power of 2 to be printed. For example, the following call:

  printPowersOf2(10);
  

  should produce the following output, because 2¹⁰ = 1024:

  1 2 4 8 16 32 64 128 256 512 1024
  

  (For this problem it's okay if your numbers have a .0 at the end of them.)

• Complete the program by writing a main method. Call your method several times in main to ensure that it works. Also check your answer using Practice-It by clicking the check-mark icon above.