Suppose a program contains the following lines of code: Bar b = new Bar("This is a","test"); int x = b.length(); The call b.length() uses dynamic dispatch as discussed in class. Explain in 2-5 short sentences which length() method will be executed by this call and why. Your explanation must include a description of how the compiler builds the code (i.e. what is happening on the heap and in the call stack).

2. (12 points) Suppose we have the following Java classes: public class Foo private string mystring; public Foo (String m) this .mystring m; public int length o return this .mystring. length public class Bar extends Foo private String str public Bar (String sl String 52) super (s1) this str s2 i public int length 1 return this. str. ho, length public String getstr o return this. str; public class F ooUtils public void foocheck (Foo f) System.out.println ("It's a Foo h public void foocheck Bar b) System.out.println ("It's a Bar b.getstr