4 Ways To Structure a Program

1. Sequence
2. Selection
3. Looping
4. Functions

while loop
-input failure control while( !in.fail() )
-counting loops
-summing loops

for loop
Example:
for ( int i=0; i<10; i++ )
{
	//loop body
}

int i=0;//initialization
while( i< 10 )//test
{
	//loop body
	i++;//modification
}

do-while - post-test loop

int x;
do
{
	cin >> x;
}
while( x % 2 != 0 );

Functions

A named block of code

3 Pieces:
1. header or signature: 
	a. return type
	b. name
	c. parameter list
2. definition
	a. this is where we write our function
3. calling the function


//this function will tell me 
//if a number is odd or even
//a return of true means
//the number was even
//therefore false means odd
bool oddOrEven( int number );//signature or header
//notice it ends with a ;   ^

//function definition
bool oddOrEven( int number ) //<-------no semicolon here
{
	bool answer = false;
	if ( number % 2 == 0 )
		answer = true;
	return answer;
}