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#HOW TO USE ECLIPSE SCANNER INPUT HOW TO#
Understanding how to get user input in Java is a crucial skill. Steps to be followed to Take String Input In Java using Scanner Class:. This text is returned to the main program so it can be stored or otherwise manipulated. Java Scanner is built into the java.util package, so no external libraries are needed to use it. The Scanner class reads an entire line and divides the line into tokens. While there are several ways to obtain input from a user, the Scanner class. next() function returns the next token/word in the input as a string and charAt(0) function returns the first character in that string. In Eclipse, we will be using the Scanner class found in the java.util package.
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Reading a character using the Scanner class The Scanner class is used to read Java user input. To read a single character, we use next().charAt(0). By default, whitespace is considered as the delimiter (to break the data into tokens). This class accepts a File, InputStream, Path and, String objects, reads all the primitive data types and Strings (from the given source) token by token using regular expressions. From Java 1.5 Scanner class was introduced.