Getting and storing user input
The Scanner object allows people to input data. It captures all the input on a standard input (like the keyboard) and delivers it to a variable.
A Scanner scans the input by tokens using a delimiter pattern. The default delimiter is a space. This means that scanner assumes that each time it sees a space it is getting ready to start a new input. So if you want to capture an input that should contain spaces (like a book title, or someone's full name), you have to use a special command nextLine.The scanner reads the input token by token. The resulting tokens may be converted into values of different types using various methods.
To include the Scanner class in your program
Add the following declaration to the top of your code:
Then, at some point, you will need to add this inside your program
Once you have created your scanner variable, you can request data and put it into another variable like so:
Methods of the Scanner class
| Method | Returns |
|---|---|
| int nextInt() | Returns the next token as an int. |
| long nextLong() | Returns the next token as a long. |
| float nextFloat() | Returns the next token as a float. |
| double nextDouble() | Returns the next token as a long. |
| String next() | Finds and returns the next complete token from this scanner and returns it as a string; a token is usually ended by whitespace such as a blank or line break. If no token exists, NoSuchElementException is thrown. |
| String nextLine() | Returns the rest of the current line, excluding any line separator at the end. |
| void close() | Closes the scanner object. |
Your assignment....
Complete the following program. Use the Scanner class to read the following string into variables. Input String: "P Sherman 42 Wallaby Way Sydney" Variables: firstInitial,lastName, houseNumber,streetName,streetType,city
Your output should be handled with this code:
System.out.print(firstInitial + " " + lastName + " " + houseNumber + " ");
System.out.println(streetName + " " + streetType + " " + city);