437: Highlights

• If you want to repeat a calculation for as long as a Boolean expression's value is true, then use a while loop:

  while (Boolean expression) 
    embedded statement or block 
  

• If you want to repeat a calculation involving entry, Boolean, and continuation expressions, then use a for loop:

  for (entry expression; 
       Boolean expression; 
       continuation expression) 
    embedded statement or block 
  

• If you want to repeat a calculation until a variable is counted down to 0, then use a counting loop:

  for (counter-declaration-and-initialization expression; 
       counter-testing expression; 
       counter-reassignment expression) 
    embedded statement or block 
  

• If you want to increment or decrement the value of a variable by 1, then instantiate one of the following patterns:

  ++variable name 
  --variable name 
  

• If you want to change a variable's value by combining it with the value of an expression via addition, subtraction, multiplication, or division, then consider instantiating the following pattern:

  variable name operator= expression