// code from week 6

// if statements

if (iq > 140)
   System.out.println("you are smart!");

if (iq <= 140)
   System.out.println("go study some more!");


// an equivalent if-else form

if (iq > 140)
   System.out.println("you are smart!");
else
   System.out.println("go study some more!");
   

/**********************************************************/

// multiple ifs

if (iq > 140)
   System.out.println("you are smart!");
else if (iq > 100)
   System.out.println("not bad!");
else
	System.out.println("go study some more!");


/**********************************************************/

// using blocks

if (iq > 140) {
   System.out.println("you are smart ");
   System.out.println("and sexy!");
}
else
   System.out.println("go study some more!");


/**********************************************************/

// nested ifs

// WRONG:
if (a > 0)
   if (a % 2 == 0)
      System.out.println(a + " is positive and even");
else
   System.out.println(a + "is negative");

// CORRECTED:
if (a > 0) {
   if (a % 2 == 0)
      System.out.println(a + " is positive and even");
}
else
   System.out.println(a + "is negative");


/**********************************************************/

// while loop examples

int num=1;
while (num <= 5) {
   System.out.println("Good day Sir!");
   num++

   if (num >= 3 && num < 5)
      System.out.print("I SAID... ");  
}


// counting down

int beers = 12;
while (beers > 0) {
   System.out.println("there's still beer!");
   beers--;
   System.out.println("one more down!");
}
System.out.println("Dude, where's my beer?");


// dangerous conditions

int i=0;
while (i != 10) {
   System.out.println("Hey!");
   i = i+2;
}

// How many times does "Hey!" show up on the screen?
// it may surprise you.