SAMS Teach Yourself C++ in 10 Minutes SECOND EDITION

The for Loop

The for loop combines three parts—initialization, condition, and step—into one statement at the top of the block it controls. A for statement has the following form:

for (initialization;
					condition;
					step)
{
   statements;
} ;

The first part of the for statement is the initialization. Any legal C++ statements can be put here (separated by commas), but typically this is used to create and initialize an index variable. Such a variable is most commonly an int. This part ends with a semicolon and is only performed once before the loop starts.

Next is the condition, which can be any legal C++ bool expression. This serves the same role as the condition in the while loop and should be read as “while Index is less than myNumberOfEntries” in ...