Scanner is one of the predefined class which is used for reading the data dynamically from the keyboard. This constructor create an object of Scanner class by talking an object of InputStream class. An object of InputStream class is called in which is created as a static data member in the System class.

The Scanner is a simple text scanner which can parse primitive types and strings. Objects have methods which perform certain tasks. The nextLine method reads the next line from the terminal. It returns the result in a String data type. The returned value is stored in the name variable which we declare to be of String type.

The Scanner class reads an entire line and divides the line into tokens. Tokens are small elements that have some meaning to the Java compiler. For example, Suppose there is an input string: In this case, the scanner object will read the entire line and divides the string into tokens: " He ", " is " and " 22 ".