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Thread: Help Me with my Program CompareTo!!!!

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    Thumbs down Help Me with my Program CompareTo!!!!

    Hello guy
    guys i am working in aprogram and still i didn't did it right?

    the Qs. is to write a program that reads in 3 words from the user and then prints out the words in alphabetic order and.

    this is my codes:


    Please GUYS HELP ME!
    Last edited by WantHelp; July 4th, 2011 at 01:51 PM.


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Help Me with my Program CompareTo!!!!

    Can you show what your program prints out?

    Please wrap your code in code tags to preserve formatting. See: BB Code List - Java Forums

    if you don't know what the compareToIgnoreCase method is returning, use printlns to show you.
    For example:
    System.out.println("third.compareToIgnoreCase(firs t)=" + third.compareToIgnoreCase(first) +
    " third=" + third + ", first=" + first);

    What programming techniques do you know how to use now? Do you know about arrays?
    For this problem you would normally use arrays.

    Otherwise if you are supposed to use if() then
    can you describe the logic you are using to find the first, and then second and third?

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    Default Re: Help Me with my Program CompareTo!!!!

    I cant use array because i'm a beginner
    and when it print i don't get the in order
    for example if i wrote : cat cloud catch

    i get cat catch catch

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    Default Re: Help Me with my Program CompareTo!!!!

    and i'm using eclipse program

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    Default Re: Help Me with my Program CompareTo!!!!

    and the the anwser should be by if statement and compareToIgnoreCase method

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    Default Re: Help Me with my Program CompareTo!!!!

    Before you write any code, you need to design the logic for what the code is supposed to do, step by step.
    Have you done that? What are the steps you need to take to find the first string.

    i get cat catch catch
    Your code only changes the variable: two. The other two variables are never changed.

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    Default Re: Help Me with my Program CompareTo!!!!

    like i used the if statement for example for the first word:
    if(first.compareToIgnoreCase(second) < 0 && first.compareToIgnoreCase(third) > 0)  
     
    		{
    			two=first; 
    		}
    		if(first.compareToIgnoreCase(second) > 0 && first.compareToIgnoreCase(second) < 0)  
    		{
    		two=first;  
    		}




    PLEASE PLEASE HELP ME ON HOW TO FIX MY PROBLEM
    I DON'T WANT TO FAIL

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    Default Re: Help Me with my Program CompareTo!!!!

    Before you write any code, you need to design the logic for what the code is supposed to do, step by step.
    Have you done that? What are the steps you need to take to find the first string the lowest one.

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    Default Re: Help Me with my Program CompareTo!!!!

    i POSTED WHAT I DID IN MY FIRST POST UP
    !
    THAT WHAT I DID WITH MY PROGRAM ONLY

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    Default Re: Help Me with my Program CompareTo!!!!

    + WE NEVER DESIGN SOMETHING BEFORE WE WRITE A CODE
    WE ARE JUST BEGINNERS!
    FIRST CLASS OF JAVA!

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    Default Re: Help Me with my Program CompareTo!!!!

    Time to learn how to program. First you think about the problem, then you design a solution and then you write code.
    For example here is a design in pseudo code to find and save the smaller of two ints: one and two
    Compare the two ints
    if one is smaller than two
    smaller = one
    else
    smaller = two

    Now expand that to be for three items

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    Default Re: Help Me with my Program CompareTo!!!!

    so i do if first = one
    else
    first=two
    else=three??

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    Default Re: Help Me with my Program CompareTo!!!!

    Sorry that makes no sense.
    Why are you testing for equality? To sort you need to know if one value is less than another.

    My algorithm started with:
    if one is smaller than two

    Your names are backwards for me. I think that you read in strings: one, two and three and then sort them so that first has the first in order, second has the second and third has the last(third).

    Try writing the logic for finding if one is the lowest of the three strings: one, two, three.

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    Default Re: Help Me with my Program CompareTo!!!!

    Quote Originally Posted by WantHelp View Post
    + WE NEVER DESIGN SOMETHING BEFORE WE WRITE A CODE
    WE ARE JUST BEGINNERS!
    FIRST CLASS OF JAVA!
    I suggest you take on board what Norm is saying if you wish to keep on everyone's good side
    Please don't delete your code from your original post. You have made it impossible to assist you.
    Please use [highlight=Java] code [/highlight] tags when posting your code.
    Forum Tip: Add to peoples reputation by clicking the button on their useful posts.

    Looking for a Java job? Visit - Java Programming Careers

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    Default Re: Help Me with my Program CompareTo!!!!

    Quote Originally Posted by WantHelp View Post
    + WE NEVER DESIGN SOMETHING BEFORE WE WRITE A CODE
    WE ARE JUST BEGINNERS!
    FIRST CLASS OF JAVA!
    You don't have to shout. Where's your code?

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