We use computers close computerA device that processes information by following a set of rules called a program., computing devices and computer systems close computer systemA series of connected ...

Many programs take input from a user and then validate it before it is processed. It is important that the messages to the user are appropriate to reduce the risk of invalid data being entered.

Community driven content discussing all aspects of software development from DevOps to design patterns. The easiest way to garner user input in a Java program is to use the System’s Console class.