/* Experiment.java -- let's take a look at a variety of mathematical
 *   operators in Java.
 */
public class Experiment
{
  public static void main(String [] args)
  {
    // Practice with arithmetical expressions
    System.out.printf("3 + 4 * 2 = %d\n", (3 + 4 * 2));
    System.out.printf("3*2 > 2*5 returns %s\n", (3*2 > 2*5));
    System.out.printf("true || false returns %s\n", (true || false));

    // Practice the order of operations
    System.out.printf("ugly expression = %d\n\n",
    		       (6 % 7 - (4 - 9) / 2) + 1 / 2 * (3 - 4) * 5 );


    //////////////////////////////////////////////////////////////
    // Test the associativity of - and /
    System.out.printf("10 - 3 - 3 = %d\n", (10 - 3 - 3));
    System.out.printf("48 / 6 / 3 = %d\n", (48 / 6 / 3));

    // Test the associativity of =
    int a = 1;
    int b = 2;
    int c = 3;
    System.out.printf("a = b = c returns %d\n", (a = b = c));
    System.out.printf("And now a = %d, b = %d, c = %d\n", a, b, c);

    // Practice Math functions
    double x = 4.6;
    double y = 7.2;
    System.out.printf("rounding x gives %d\n", Math.round(x));
    System.out.printf("strange expression = %f\n",
    	               Math.min(Math.floor(x), Math.ceil(y)));

    // Practice Character functions
    char ch = 'g';
    System.out.printf("uppercase is %c\n", Character.toUpperCase(ch));
    System.out.printf("is letter?  %s\n\n", Character.isLetter(ch));


    /////////////////////////////////////////////////////////////////
    // Practice with shortcuts for assignment
    a = 4;
    b = 3;
    c = 2;
    System.out.printf("b += c gives this result:  %d\n", (b += c));
    System.out.printf("a -= b gives this result:  %d\n", (a -= b));
    System.out.printf("c *= a + b gives this result:  %d\n", (c *= a + b));

    // Practice with incrementer / decrementer
    a = 4;
    b = 3;
    c = 2;
    System.out.printf("--c gives this result:  %d\n", (--c));
    System.out.printf("++a gives this result:  %d\n", (++a));
    System.out.printf("a * --b + c++ equals %d\n", (a * --b + c++));
    System.out.printf("final values of a,b,c are:  %d, %d, %d\n", a,b,c);
  }
}