while() Control Iteration Web & Application while_.gif int i=0; while(i<80) { line(30, i, 80, i); i = i + 5; } Controls a sequence of repetitions. The while structure executes a series of statements continuously while the expression is true. The expression must be updated during the repetitions or the program will never "break out" of while(). while(expression) { statements } expression a valid expression statements one or more statements for() 1.0 Structure PDE