Ifs and Expressions

Boolean expression: true/false

If: “if condition is met, execute the following”

If-else: “if condition is met, execute the following; if not met, execute the following”

If-elseif-else: “if one of these conditions are met, execute the following”

if (x < "10") {
  print "Hi!";
} else {
  print "Bye!";
}

if (x < "10") {
  print "Hi!";
} else {
  print "Bye!";
}

if (x < "10") {
  print "Hi!";
} elseif (x < "20") {
  print "Hello!";
} else {
  print "Bye!";
}

De Morgan's Law

PvQ can only fail to be true if P and Q are both false both must be true in order for the concept to be fullfilled

ex: “I don’t like chocolate or vanilla” vs “I do not like chocolate and I do not like vanilla” (same thing!)

credit: https://www.whitman.edu/mathematics/higher_math_online/section01.03.html

public class Test1
{
   public static void main(String[] args)
   {
     int x = 2;
     int y = 3;
     System.out.println(!(x < 3 && y > 2));
   }
}
# https://runestone.academy/ns/books/published/apcsareview/Conditionals/cDeMorgans.html