class Solution {
    public double Power(double base, int exponent) {
        if(base==0)
            return 0;
        else if(exponent==0)
            return 1;
        else{
            double result = 1.0;
            for(int i =1;i<=Math.abs(exponent);i++){
                result *=base;
            }
            return exponent<0? 1/result : result;
        }
    }
}