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+package leetcode;%0A%0A/**%0A * https://leetcode.com/problems/power-of-two/%0A */%0Apublic class Problem231 %7B%0A    public boolean isPowerOfTwo(int n) %7B%0A        double m = Math.log10(n) / Math.log10(2);%0A        double fraction = (long) m - m;%0A        return fraction == 0.0;%0A    %7D%0A%7D%0A

Solve problem 231 (my 100th problem, yay!)