How to make a diamond using Nested For Loops

Question

So I was assigned to make a diamond with asterisks in Java and I\'m really stumped. Here\'s what I\'ve come up with so far:

public class Lab1 
{
   public s         


        

Answer 1

I can see what you are trying to do and this is a pretty neat way to think about the diamond.

You will have some issues with the j counter when i goes negative..look at how to use Math.abs()

Also try writing some pseudo code in basic steps with comments to get the pattern clear:

 //print 5 spaces + 1 star
 //print 4 spaces + 2 stars
 //print 3 spaces + 3 stars
 //print 2 spaces+ 4 stars
 .
 . 
 .  
 //print 5 spaces + 1 star

Then, literally substitute variables (j and i) for the numbers.

You now have a model. This is often the hardest part in programming..getting the model right. Only jump into coding when you have a good idea for how the model works.

Once you have the variables substituted, you can try to convert the whole thing into an automated loop.