While Loops

Main Points:

• A loop is a part of a program that repeats itself. 
• There are different types of loops, in this lesson we will just focus on the while loop.
• The while loop tests a condition and if that condition is true it iterates. 
• Format:
  while(condition){
  do this;
  }
• There can be many reasons you would want to use a loop in your program. Most likely you will need a counter to track how many times the loop executes. You can either increment or decrement this value.
• To increment a variable (number):
  number++;
• To decrement a variable:
  number–;

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