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Jul 21st, 2008

Re: help please

For 2, what are all even numbers divisible by that odd numbers are not?

For 4, loop backwards.

For 5, nested loops.

For 6, a loop and a an array of length 5 for summing, and divide by 10 and minus 5 to index into it.

There, there are the ideas for each of them.

Us doing your homework for you would not help you. You would learn nothing, and so would come back here tommorrow begging for "help" again, because what you need to do tommorrow built on what you did today, but you didn't do anything today (other than cut-n-paste). That's the way it is, if we simply do it for you, so, no, we are not going to do it for you, that does not help you. Those who fail with effort still understand more than those who pass without it.

masijade

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Jul 21st, 2008

Re: help please

thaaaaaaaanx my frind .... i'll do it and i will be back later ...

thaaaaaaaanx for ur advice ....

i'll be back

zoooz_20

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Jul 21st, 2008

Re: help please

If you have solved a problem and you run it and it works then don't post it. Post only those that you are having problems with.

javaAddict

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Jul 21st, 2008

Re: help please

hey again >>>

i have solve the second one>>
2. Write a program to compute the sum and product of all odd integers from 1 to 19.

<<<<<<<<<
the answer is :

Java Syntax (Toggle Plain Text)
import java.util.Scanner;
 
  public class program1 {                                                       
    public static void main(String [] args){                                   
     Scanner scan =new Scanner(System.in);
 
        int  sum =0, product=1 ;                                                            
 
 
       for (int x = 1; x <= 19; x++) {
 
             if (x % 2 ==1)
             sum=sum+x;
      }
 
        for (int y = 1; y <= 19; y++) {
 
             if (y % 2 ==1)
             product=product*y;
      }
 
  System.out.println( sum+"       "+ product );  
 
 
    }  
 
}
import java.util.Scanner;
  
  public class program1 {                                                       
    public static void main(String [] args){                                   
     Scanner scan =new Scanner(System.in);
    
        int  sum =0, product=1 ;                                                            
    
    
       for (int x = 1; x <= 19; x++) {
  
             if (x % 2 ==1)
             sum=sum+x;
      }
        
        for (int y = 1; y <= 19; y++) {
  
             if (y % 2 ==1)
             product=product*y;
      }
        
  System.out.println( sum+"       "+ product );  
         
 
    }  
 
}

i dont know if its correct <<<

and the athers i dont understand the real idea >>

but i'll try ....

Last edited by Tekmaven; Jul 22nd, 2008 at 4:35 am. Reason: Code tags

zoooz_20

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Jul 21st, 2008

-1

Re: help please

Does it compile?
Are there any errors?
Is it doing what you expect to do?

And please start using code tags (without spaces inside square brackets)

Quote ...

[ code=java]
private final String = "For easy readability, always wrap programming code within posts in [ code] (code blocks) and [icode] (inline code) tags.";
[/code]

peter_budo

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Jul 21st, 2008

Re: help please

It could help if you try to go over your program and write a pseudocode and then browse over java tutorials to interpret your pseudocode into java codes....

With a little effort you can answer these problems...

try the following links:
http://www.java2s.com/
http://www.roseindia.net/programming...Java-Tutorials
http://www.skillbuilders.com/Tutoria...0Tutorials.cfm

Last edited by loken; Jul 21st, 2008 at 10:24 pm. Reason: java references

loken

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Jul 22nd, 2008

Re: help please

With the exception of that second link which has mainly obsolete, and often times simply bad, tutorials/examples/advice. Roseindia is a blight on the Java world. Nearly everytime I see someone use some really bad practice on many forums and tell them not to do that, they often come back and say "But the tutorial I followed showed it this way!". And where did they get that tutorial ---> Roseindia. Nuff said.

masijade

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Jul 22nd, 2008

Re: help please

Click to Expand / Collapse Quote originally posted by masijade ...

With the exception of that second link which has mainly obsolete, and often times simply bad, tutorials/examples/advice. Roseindia is a blight on the Java world. Nearly everytime I see someone use some really bad practice on many forums and tell them not to do that, they often come back and say "But the tutorial I followed showed it this way!". And where did they get that tutorial ---> Roseindia. Nuff said.

Lol...

The site didn't seem organized to me just at first glance. I'll probably never go there again.

I've probably learned more here than I have alone. Dani for the win (yes I spelled it out) =P

Alex Edwards

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Jul 22nd, 2008

Re: help please

/facepalm

I now I feel like an uber noob for going to RoseIndia

Last edited by bloody_ninja; Jul 22nd, 2008 at 3:42 am.

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Jul 22nd, 2008

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Re: help please

Also first link to java2s.com is loose-win situation.
I would not recommend that site to beginner because either they will learn nothing from it as it does not contain any explanation to the code (code there is simple free copy to code from numerous books, some already out of date) or they will just copy&paste without understanding what that thing does.
However I use that site time-to-time, but I think I'm past the learning of for or while loops...

peter_budo

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