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Nested Loops

 
Elise Wilson
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I can not figure out what is the prooooblem... Please help...

I need this pattern

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6

and here is my code...

import javax.swing.JOptionPane;

public class forLoop {
public static void main(String[] args) {
int row;
int column;

String outputPattern = "Pattern I\n";

for (row = 1; row <= 6; row++) {
for (column = 1; column <= row; column++) {
outputPattern += column + " ";
}
outputPattern += "\n";

System.out.println(outputPattern);
}
}
}

Instead of looking like the above pattern, it looks like:

Pattern I

1

Pattern I

1
1 2

Pattern 1

1
1 2
1 2 3

etc... etc... etc...

Please show me what a little mistake I am making...

Thanks in advance
 
Henry Wong
author
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Well, I could give you a hint, but you are already so close...

Basically, your print statement is in the wrong place. It is being called many times. Move your print statement outside of the outer loop.

Henry
 
Elise Wilson
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OH MY GOODNESS!!! I knew it was something that was sooooo close...

THANK YOU SO MUCH!!! WOW @ your kindness... Other forums have some very *not so nice* people...



 
marc weber
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Originally posted by Elise Wilson:
... Other forums have some very *not so nice* people...

Yeah, I think we can guess where those "other forums" might be.
 
Elise Wilson
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Stumped again...

for (row = 1; row <= 6; row++) {
for (column = 6; column >= row; column--) {
outputPattern += column + " ";
}
outputPattern += "\n";
}

Looks like:
6 5 4 3 2 1
6 5 4 3 2
6 5 4 3
6 5 4
6 5
6

"SHOULD" look like this:

1
2 1
3 2 1
4 3 2 1
5 4 3 2 1
6 5 4 3 2 1

Since it is the flip of the first one, i did just that... It's not working... Please explain... All this +, >, -- is confusing...

 
Elise Wilson
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Should look like (what happened to what I put):

For S&G purposes there aren't suppose to be * but it wouldn't take the spaces...

**********1
********2*1
******3*2*1
****4*3*2*1
**5*4*3*2*1
6*5*4*3*2*1
 
marc weber
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You can keep your space formatting intact by using the CODE tags when posting (or editing). So this is what you want...

Right?

Take this one row at a time. Suppose row = 1, and column goes from 6 to 1. For column values 6 through 2, we want a space. But for column = 1, we want the number 1. The trick is expressing this (the pattern of 5 spaces followed by the number "1") in terms of row and column values.

Next, suppose row = 2, and column again goes from 6 to 1. For column values 6 through 3, we want a space. But for column values 2 and 1, we want the numbers 2 and 1 respectively.

Do you see a pattern?
[ October 13, 2005: Message edited by: marc weber ]
 
Elise Wilson
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By George I think I got it... My teacher doesn't "break it down" he just says to do it...

Thanks for all you guys help...

 
marc weber
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Originally posted by Elise Wilson:
... My teacher doesn't "break it down" he just says to do it...

Learning to approach problems in this manner is one of the more valuable skills you can develop as a programmer.
 
I agree. Here's the link: http://aspose.com/file-tools
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