Java 6 Illuminated: An Active Learning Approach, 2nd Edition

6.3 Event-Controlled Looping 283

Using a while loop construct, the pseudocode for the cashier would look

like this:

set total to $0.00

reach for first item

while item is not the divider bar

{

add price to total

reach for next item

}

// if we get here, the item is the divider bar

output the total price

It is also possible to construct a while loop whose condition never evaluates

to false. That results in an endless loop, also known as an infinite loop.

Because the condition always evaluates to true, the loop body is executed

repeatedly, without end. This might happen if items other than the divider

bar were placed continuously on the conveyor belt. One sy