Triangle printing (for loop)

I'm trying to create this output using the for loop :
aaaaa
*aaaa
o*aaa
oo*aa
ooo*a

this is the code i wrote:

Code Java:

---

public class Triangles
{
	public static void main(String args[])
	{
		int q=5;
 
		for (int p=1; p<=q; p++ )
        {
			for (int x=1; x<p; x++)
	            System.out.print("o");
	            System.out.print("*");
	        for (int y=q; y>=p; y--)
	            System.out.print("a");
	        System.out.println("");
        }
	}
}

---

but this is the output i get:

*aaaaa
o*aaaa
oo*aaa
ooo*aa
oooo*a

i tried changing the code a few times but all i get are weird outputs.
Can anybody please tell me whats wrong with my code? and if its possible tell me which part should i fix.

THANKS for any help :x

aaaaa
*aaaa
o*aaa
oo*aa
ooo*a

Ok
I take it you start with all a's
then you change the first a to a *
then you change that star to an o and move the * over to the second a
and then you continue

Code java:

---

public class Triangles
{
    public static void main(String args[])
    {
     /*   int q=5;
 
        for (int p=1; p<=q; p++ )
        {
        	System.out.println("P is: " + p);
            for (int x=1; x<p; x++)
            	System.out.println("X is: " + x);
                System.out.print("o");
                System.out.print("*");
            for (int y=q; y>=p; y--)
            	System.out.println("Y is: " + y);
                System.out.print("a");
            System.out.println("");
        }
        */
    	String str = "aaaaa";
    	String[] str2 = new String[5];
    	System.out.println(str);
    	for (int i =0; i < 5; i++)
    	{
 
    	char[] chars = new char[str.length()];
    	for (int x =0; x < chars.length; x++)
    	{
    	chars[x] = str.charAt(x);
    	}
    	if (str.charAt(i) == 'a')
    	{
    	chars[i] = '*';
    	str2[i] = new String(chars);
    	str = str2[i];
    	if ( i > 0 && str.charAt(i-1) == '*' )
    	{
    		chars[i-1] = 'o';
    		str2[i] = new String(chars);
    		str = str2[i];
 
    	}
    	System.out.println(str2[i]);
    	}
 
    	}
    }
}

---

 

aaaaa

*aaaa

o*aaa

oo*aa

ooo*a

oooo*