File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
A friendly place for programming greenhorns!
Big Moose Saloon
Register / Login
Win a copy of
Meteor in Action
this week in the
Counting inputs and scanner class
Joined: Feb 01, 2007
Mar 08, 2008 18:33:00
How do you count the amount of inputs using the Scanner class?
Say for instance I want the user to enter an even, and only an even amount of numbers
"Enter an even amount of numbers :"
5 12 7 2
after hitting return, how can I store these into one variable?
Joined: Jan 30, 2000
Mar 08, 2008 19:23:00
For a problem like this, I recommend you start with a smaller problem and then build on your solution For example:
1. Write a program that reads just one number from the list using a Scanner and prints it out.
2. Add a loop to make the Scanner read repeatedly. Is there a way to make the Scanner stop once there are no more numbers to read?
3. Add an int variable "count". Every time you go through the loop, add one to the count. After you're done with the loop, print the count.
If you get stuck on one part, show us what you've done so far and we can offer more suggestions.
"I'm not back." - Bill Harding,
Joined: Sep 13, 2007
Mar 12, 2008 10:03:00
This looks harder than it sounds!! Yet I see there are many ways to do it.
I agree. Here's the link:
subject: Counting inputs and scanner class
simple array loop
List of numbers input from scanner into an arraylist
Largest/Greatest of n numbers
how to accept i/p's from user
User addition result Help needed.
All times are in JavaRanch time: GMT-6 in summer, GMT-7 in winter
| Powered by
Copyright © 1998-2015