You can edit a header by simply left-clicking in a blank space at the top of the document and selecting Edit Header

Explain how activation records and the program stack are used to manage the invocation of and return from methods.

What will be an ideal response?

If you want a class that implements the Map interface and do not need any methods beyond those in the Map interface, you can use the ____________ class.

a. Vector b. AbstractMap c. HashMap d. HashSet