java util scanner methods

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certainly! the `java.util.scanner` class is a powerful utility for reading input from various sources, including user input from the console, files, and streams. below is an informative tutorial on the commonly used methods of the `scanner` class, along with code examples.

overview of `scanner`
the `scanner` class is part of the `java.util` package and is used to parse primitive types and strings using regular expressions. it can take input from various sources, but the most common use is reading input from the console.

creating a scanner object
to use the `scanner`, you first need to import it and create an instance of the class. here's how to do that:



commonly used methods

1. *next()*
reads the next token from the input.
example:


2. *nextline()*
reads an entire line of input, including spaces.
example:


3. *nextint()*
reads the next integer from the input.
example:


4. *nextdouble()*
reads the next double from the input.
example:


5. *nextboolean()*
reads the next boolean value (true or false).
example:


6. *hasnext()*
checks if there is another token in the input.
example:


7. *hasnextline()*
checks if there is another line of input.
example:


example program
here is a complete example that demonstrates various `scanner` methods:



conclusion
the `scanner` class in java provides a simple and effective way to gather input from users. by using the various methods available in this class, you can read different types of data, making it versatile for a variety of applications. always remember to close the `scanner` to free up system resources.

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