Finding biggest files, making list

Okay, I know my issue is in my add function [adds to the array]
so I'll only post that portion of the code

Code :

---

	public void add(Comparable<Wrapper> c)
	{
		for(int x =0; x<CompFiles.length ; x++)
		{
			if(CompFiles[x] == null )
			{
				CompFiles[x] = c;
				return;
			}
		}
		for(int x = 0; x<CompFiles.length; x++)
		{
			int stat = c.compareTo((Wrapper) CompFiles[x]);
			if(stat > 0)
			{
				CompFiles[x]=c;
				return;
			}
		}
	}

---

Oh and the compareTo code

Code :

---

 
	@Override
	public int compareTo(Wrapper o)
	{
		return (int) (this.size - o.getSize());
	}

---

Which is in the Wrapper class.

Now my best explaination of the bug
"
It works great up to a list of 3, or if the list can fit all the files.
Other than that, I was trying it with a directory with 16 files, the first 3 were correct, but the 4th on the list was actually the 7th biggest in the directory -- [using a list of 4].
I can't figure out the bug for the life of me.
"
[sent to my teacher along with my code, YES IT IS A COLLEGE PROJECT, but I ALREADY HANDED IT IN... even though I handed it in already -- I wanna figure out whats wrong with it]

If you want the entire source for compilation purposes, let me know and I'll post it.

Well I figured out what the problem was, my adding after filling up the array was flawed

Code :

---

		for(int x = 0; x<CompFiles.length; x++)
		{
			int stat = c.compareTo((Wrapper) CompFiles[x]);
			if(stat > 0)
			{
				CompFiles[x]=c;
				return;
			}
		}

---

Bascially say I have the 2nd largest, 3rd largest, and 4th largest filled up the array of 4. But I have 5 files. I find the 5th file, check the [0] of the array first, which would be the 2nd largest, and figure OH LOOK ITS LARGER and throw that out.
So I had to find the smallest in that array, adn then check to see if its bigger than the file I'm looking to add.

Code :

---

	public void add(Comparable<Wrapper> c)
	{
		for(int x =0; x<CompFiles.length ; x++)
		{
			if(CompFiles[x] == null )
			{
				CompFiles[x] = c;
				return;
			}
		}
		int smallestFileIndex=0;
		long smallestFileSize=((Wrapper)CompFiles[0]).getSize();
		for(int x=0; x<CompFiles.length; x++)
		{
			if(((Wrapper)CompFiles[x]).getSize()<smallestFileSize)
				smallestFileIndex=x;
		}
		if(((Wrapper)CompFiles[smallestFileIndex]).getSize()<((Wrapper) c).getSize())
			CompFiles[smallestFileIndex]=c;
	}

---

As you see, I just had to add a check thats it.