5. Syntax of the while statement



Answer:
  1. How many times was the condition true? 3
  2. How many times did the block statement following the while execute? 3


Syntax of the while statement





    

    

    

        

            

                

            

        

    















    







    
Here is the syntax for the while statement:
while ( condition )
  statement 
Varieties of while Statements
while ( condition )
  statement;
while ( condition )
{
  one or more statements
}
Notes:
      • The condition is a Boolean expression: something that evaluates to true or false.
      • The condition can be complicated, using many relational operators and logical operators.
      • The statement is a single statement. However it can be (and usually is) a block statement containing several other statements.
      • The statement is sometimes called the loop body.
Since the statement can be a single statement or a block statement, a while statement looks like either choice in the table. Almost always, though, a while statement is used with a block.
The style of indenting used here leads to fewer errors than alternative styles. The statements controlled by the while are indented. The braces of the block are aligned with each other and with the while and each is put on its own line.




Question 5:
Is the condition always surrounded by parentheses?