// This example uses the java.lang.Math library, which consists of 
//  static fields and methods
//
// This example shows you how to CALL upon static features of a library
// Format:  className.member
//
// If you see a CLASS name on the left of the dot-operator, the
//  thing on the right MUST be a static member


class MathExample
{
  public static void main(String[] args)
  {
     System.out.printf("PI to 3 decimal places = %.3f\n", Math.PI);
     System.out.printf("E to 3 decimal places = %.3f\n", Math.E);

     int x = 10, y = -5, z = -20; 

     int a1;

     a1 = Math.abs(x);
     System.out.println("Absolute value of " + x + " is " + a1);
     System.out.println("Absolute value of " + y + " is " + Math.abs(y) );
     System.out.println("Absolute value of " + z + " is " + Math.abs(z) );

     double ans = Math.pow(y,3);
     int answer = (int)ans;
     System.out.println(y + " raised to the power of 3 = " + answer); 

     System.out.println(x + " raised to the power of 4 = " 
			+ (int)Math.pow(x, 4) ); 

     double randNum;
     randNum = Math.random();
     System.out.println("Random number is: " + randNum);

     int dieRoll = (int)(Math.random() * 6) + 1;
     System.out.println("Rolling a die: " + dieRoll);

  }

}