Java Programming

In the main method below, circle all variables that have memory allocated on the stack and underline all variables that have memory allocated on the heap

public class Foo{ public static void main(String[] args) { int x = 10; float y = 11.0f; Float yy = new Float (y); Integer xx = new Integer (x); Double d = new Double (50.0); Double e = d; double m = e.doubleValue(); } }