Welcome to the Java Programming Forums


The professional, friendly Java community. 21,500 members and growing!


The Java Programming Forums are a community of Java programmers from all around the World. Our members have a wide range of skills and they all have one thing in common: A passion to learn and code Java. We invite beginner Java programmers right through to Java professionals to post here and share your knowledge. Become a part of the community, help others, expand your knowledge of Java and enjoy talking with like minded people. Registration is quick and best of all free. We look forward to meeting you.


>> REGISTER NOW TO START POSTING


Members have full access to the forums. Advertisements are removed for registered users.

Results 1 to 5 of 5

Thread: Calculator Aplication

  1. #1
    Junior Member
    Join Date
    Dec 2012
    Posts
    5
    Thanks
    2
    Thanked 0 Times in 0 Posts

    Default Calculator Aplication

    Hey Guys. I'm doing a calculator app that takes two numbers and add, subtracts, multiplicates and divide them. The problem with this application is that when I click a Button (add button, subtract button, multiplication button or divide button) without writing one of the two number first the app crashes.
    How can I resolve this problem?


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
    Join Date
    Oct 2010
    Location
    Washington, DC
    Posts
    5,172
    My Mood
    Hungover
    Thanks
    141
    Thanked 600 Times in 515 Posts

    Default Re: Calculator Aplication

    Without seeing an SSCCE, we really can't help you.
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
    Static Void Games - Play indie games, learn from game tutorials and source code, upload your own games!

  3. The Following User Says Thank You to KevinWorkman For This Useful Post:

    hellhunt (January 30th, 2013)

  4. #3
    Super Moderator Norm's Avatar
    Join Date
    May 2010
    Location
    SW Missouri
    Posts
    20,067
    Thanks
    47
    Thanked 2,146 Times in 2,119 Posts

    Default Re: Calculator Aplication

    The code should check for valid values before trying to use them
    If you don't understand my answer, don't ignore it, ask a question.

  5. The Following User Says Thank You to Norm For This Useful Post:

    hellhunt (January 30th, 2013)

  6. #4
    Junior Member
    Join Date
    Dec 2012
    Posts
    5
    Thanks
    2
    Thanked 0 Times in 0 Posts

    Default Re: Calculator Aplication

    Thanks Guys I found the error, the problem was an exception!!

  7. #5
    Super Moderator curmudgeon's Avatar
    Join Date
    Aug 2012
    Posts
    1,130
    My Mood
    Cynical
    Thanks
    64
    Thanked 139 Times in 134 Posts

    Default Re: Calculator Aplication

    Spam posts removed. Thread locked.

Similar Threads

  1. Calculator
    By Vibex in forum What's Wrong With My Code?
    Replies: 3
    Last Post: September 14th, 2012, 05:23 PM
  2. Help with a calculator
    By Joshroark10 in forum Java Theory & Questions
    Replies: 5
    Last Post: September 10th, 2012, 03:59 PM
  3. Jain SIP for Voip aplication !
    By khalilghenimi in forum Java Networking
    Replies: 5
    Last Post: May 10th, 2011, 05:45 PM
  4. Calculator
    By javapenguin in forum What's Wrong With My Code?
    Replies: 5
    Last Post: December 22nd, 2010, 08:00 AM
  5. [SOLVED] Calculator help
    By Bradshjo in forum What's Wrong With My Code?
    Replies: 2
    Last Post: November 1st, 2010, 04:27 PM