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 7 of 7

Thread: about Operator Precedence

  1. August 6th, 2011, 11:56 PM #1
    degar
    degar is offline
    Junior Member
    Join Date
    Aug 2011
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Smile about Operator Precedence

    [need help]

    i have a question and task about operator precedence

    1.what is the operator precedence
    2.how to use operator precedence for this :

    >> 3*10*2/15-2+4^2^2 ?
    >> a/b^c^d-e+f-g*h+i ?
    >> r^s*t/u-v+w^x-y++ ?

    so please help me i'm new in java program
    Reply With Quote Reply With Quote

  2. Default Related threads:

  3. August 7th, 2011, 05:27 AM #2
    Sean4u
    Sean4u is offline
    Super Moderator Sean4u's Avatar
    Join Date
    Jul 2011
    Location
    Tavistock, UK
    Posts
    637
    Thanks
    5
    Thanked 103 Times in 93 Posts

    Default Re: about Operator Precedence

    If you search for "java operator precedence", you'll find this page:
    Operators (The Java™ Tutorials > Learning the Java Language > Language Basics)

    'operator precedence' is the rule that programming languages use to decide which operators to apply first. For example 2 + 3 * 4 equals 14 (2 + (3 * 4)), not 10 ((2 * 3) + 4).
    Last edited by Sean4u; August 7th, 2011 at 05:29 AM. Reason: can't count
    Reply With Quote Reply With Quote
  4. August 7th, 2011, 09:28 AM #3
    Norm
    Norm is offline
    Super Moderator Norm's Avatar
    Join Date
    May 2010
    Location
    Eastern Florida
    Posts
    25,145
    Thanks
    65
    Thanked 2,720 Times in 2,670 Posts

    Default Re: about Operator Precedence

    To prevent confusion and mistakes, ALWAYS use ()s to isolate all the operations.
    Reply With Quote Reply With Quote
  5. August 7th, 2011, 08:02 PM #4
    Junky
    Junky is offline
    Grand Poobah
    Join Date
    Mar 2011
    Posts
    1,545
    My Mood
    Grumpy
    Thanks
    0
    Thanked 167 Times in 158 Posts

    Default Re: about Operator Precedence

    Quote Originally Posted by Sean4u View Post
    14 (2 + (3 * 4)), not 10 ((2 * 3) + 4).
    Considering that they are 2 different equations I'm not surprised they give different results.
    Improving the world one idiot at a time!
    Reply With Quote Reply With Quote
  6. August 8th, 2011, 06:25 AM #5
    Sean4u
    Sean4u is offline
    Super Moderator Sean4u's Avatar
    Join Date
    Jul 2011
    Location
    Tavistock, UK
    Posts
    637
    Thanks
    5
    Thanked 103 Times in 93 Posts

    Default Re: about Operator Precedence

    So that's why I typed the wrong (right) result the first time... :facepalm:
    Reply With Quote Reply With Quote
  7. August 9th, 2011, 06:35 AM #6
    diyaots
    diyaots is offline
    Member
    Join Date
    Mar 2011
    Posts
    32
    My Mood
    Worried
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default Re: about Operator Precedence

    Please find the solutions about precedence..

    Operators (The Java™ Tutorials > Learning the Java Language > Language Basics)
    Last edited by diyaots; November 21st, 2011 at 04:48 AM.
    Reply With Quote Reply With Quote
  8. August 12th, 2011, 01:57 AM #7
    Mr.777
    Mr.777 is offline
    Think of me.... Mr.777's Avatar
    Join Date
    Mar 2011
    Location
    Pakistan
    Posts
    1,136
    My Mood
    Grumpy
    Thanks
    20
    Thanked 82 Times in 78 Posts
    Blog Entries
    1
    Send a message via MSN to Mr.777

    Default Re: about Operator Precedence

    If you are good in mathematics, you can apply similar rules here.
    Reply With Quote Reply With Quote
« Ending a method that has no return type | abstract class & 'covariant' return type? »

Similar Threads

  1. Operator % cannot be applied to java.lang.String,int?
    By javarum in forum Java Theory & Questions
    Replies: 8
    Last Post: July 12th, 2011, 08:06 PM
  2. Sobel Operator (Edge Detection)
    By Kimimaru in forum What's Wrong With My Code?
    Replies: 4
    Last Post: February 18th, 2011, 06:21 PM
  3. how to extract variables,keywords,operator...
    By Nanda in forum Java Theory & Questions
    Replies: 1
    Last Post: November 12th, 2009, 10:19 PM
  4. Operator Problem
    By KevinGreen in forum Algorithms & Recursion
    Replies: 2
    Last Post: November 2nd, 2009, 09:50 AM
  5. he operator / is undefined for the argument type(s) String, int
    By mtbr00x in forum File I/O & Other I/O Streams
    Replies: 2
    Last Post: September 8th, 2009, 08:34 PM