Like input-output symbols, process boxes have a single line connecting it to the previous flowchart step and a single line leading to the next one. A flowchart may contain any number of process boxes.

Computer control uses computers to manage devices. It offers high accuracy and reprogrammability. Systems involve input, processing, and output. Flowcharts plan sequences.

In prior Java 101 articles, I referred to the concepts of redirection, standard input device, and standard output device. To demonstrate inputting data, several examples called System.in.read ().