Java memory overflow example of of heap overflow stack overflow

Stack overflow :

/**
* @author LXA
*  Stack overflow 
*/
public class Heap
{
    public static void main(String[] args)
    {
        ArrayList list=new ArrayList();
        while(true)
        {
            list.add(new Heap());
        }
    }
}

Error:

Java. Lang. OutOfMemoryError: Java heap space

Stack overflow :

/**
* @author LXA
*  Stack overflow 
*/
public class Stack
{
    public static void main(String[] args)
    {
        new Stack().test();
    }
    public void test()
    {
        test();
    }
}

Error:

Java. Lang. StackOverflowError