squared.java

Java程序设计技巧与开发实例附书源代码。

public class Squared {
  public static double square(double x) {
    return x * x;
  }

  public static int cube(int i) {
    return i * i * i;
  }

  public static double power(double base, int exp) {
    double result = 1;
    for (int i = 1; i <= exp; i++) {
      result *= base;
    }
    return result;
  }

  public static void main(String args[]) {
    double x = 2.0;
    double y = square(square(square(x)));
    System.out.println("x: " + x + ", y: " + y);

    int i = 2;
    int j = cube(cube(cube(i)));
    System.out.println("i: " + i + ", j: " + j);

 //   int z = cube(square(i));
//    int w = square(cube(i));

    System.out.println(power(square(x) + cube(i), 4 / 3 + 1));
  }
}