Write your own power function - Java Algorithm

Java examples for Algorithm:Number

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Description

Write your own power function

Demo Code

     //from www. ja va2  s .  c  o m
class Calculator {
  public int power(int n, int p) throws Exception {
    if (n < 0 || p < 0)
      throw new Exception("n and p should be non-negative");
    else {
      int ans = 1;
      for (int i = 1; i <= p; i++) {
        ans = ans * n;
      }
      return ans;
    }
  }
}

public class Main {

  public static void main(String[] argh) {
      Calculator myCalculator = new Calculator();
      try {
        int ans = myCalculator.power(2, 3);
        System.out.println(ans);

      } catch (Exception e) {
        System.out.println(e.getMessage());
      }
  }
}

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