Java-Scanner

Scanner You saw that it is easy to print output to the console window just by calling System.out.println( ). Reading from the console window isn’t quite as simple. To read console input, you first construct a Scanner that is attached to System.in : Scanner reads formatted input and converts it into its binary form. Scanner can … Read more…

Java-Change Delimiters

Change Delimiters Scanner defines where a token starts and ends based on a set of delimiters. The default delimiters are the whitespace characters. However, it is possible to change the delimiters by calling the useDelimiter(String pattern) method, pattern is a regular expression that specifies the delimiter set. For example, in the following program, the String … Read more…

Java-Reading Mixed Data Types

Reading Mixed Data Types You can use Scanner to read input that contains several different types of data—even if the order of that data is unknown in advance. You must simply check what type of data is available before reading it. When reading mixed data types, as the following program does, you need to be a … Read more…