Re: Nested for loop

From:
Lew <lew@nospam.lewscanon.com>
Newsgroups:
comp.lang.java.help
Date:
Wed, 11 Apr 2007 20:24:32 -0400
Message-ID:
<yuqdneT76Zfc4YDbnZ2dnUVZ_jSdnZ2d@comcast.com>
JohnT wrote:

import java.io.StringWriter;

public class ShowMe {
    public static void main(String [] args) {
        String allStars = "*****";
        int count = 0;
        for (int x=1;x<10;x++) {
            count = x;
            if (x > 5)
              count = x + (( -2 * x) + 10);
            StringWriter sb = new StringWriter(count);
            sb.write(allStars, 0, count);
            String correctNumberOfStars = sb.toString();
            System.out.println(correctNumberOfStars);
        }
    }
}

Lex pointed out to me that my expression was a bit more complex than it
needed to be, but I didn't think my effort was too bad for about 45
minutes of work. Most of that time was working out the formula. Once I
had that figured out, it wasn't too difficult to search the java docs
for a "string" type class that had a method I needed.


I was thinking of a slightly different approach (untested):

public static void main(String [] args)
{
     String allStars = "*****";
     for ( int ix = -4; ix < 5; ++ix )
     {
         System.out.println( allStars.substring( 0, 5 - Math.abs(ix) );
     }
}

--
Lew

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