Checking memory usage

[jsobel]

will these methods work to get me my memory usage for a program in megabytes they dont seem to work

	public String CurrentMemory()
	{
               double currentMemory=((double)((double)(Runtime.getRuntime().totalMemory()/1024)/1024))- ((double)((double)(Runtime.getRuntime().freeMemory()/1024)/1024)); 
	return String.valueOf(currentMemory);
	}
	public String AvailableMemory()
	{
	double availableMemory = ((double)((double)(Runtime.getRuntime().freeMemory()/1024)/1024)); 
	return String.valueOf(availableMemory);
	}
	public String AllocatedMemory()
	{
	double allocatedMemory = ((double)((double)(Runtime.getRuntime().maxMemory()/1024)/1024)); 
	return String.valueOf(allocatedMemory);
	}

[Tolls]

Why don't you do the calculation first (total - free) and then convert?

Anyway, in what way do they not work?

[javin.paul]

Method should work, what is the problem you are getting ? Another thing use long , why are you using double ? long seems better choice to me as all those Runtime method return long.

[Tolls]

Method should work, what is the problem you are getting ? Another thing use long , why are you using double ? long seems better choice to me as all those Runtime method return long.

They're using double because of the calculation, and presumably want the fractions?
I don't understand why.

[javin.paul]

Me too. Even though I think only one cast is required because then rest of calculation automatically becomes double, isn't it ?