In the following list:John, Kate, Fred, Mark, Jon, Adam, Drewwhich element does not have a predecessor? 

The last node in a linear linked list ________.

How many constructors can a class have?

What does it mean for the return type of a method to be void?

Which of these is not a legal Java identifier?

Using the flight map below and a stack, determine if a flight path exists from city  H to city I.  Write your answer in the textbox below.  It is only necessary for your answer to show one route, if it exists.  Show the state of the stack after each step. (2 points)   For example if the question asked: Does a flight path exist from city C to city G? Your answer could be written like this: Yes a path from city C to city G exists, the resulting stacks are C, DC, HDC, GHDC.  

The factorial of n is equal to ______.

An algorithm is a computer program written in a high=level programming language such as Java.

In the following list:John, Kate, Fred, Mark, Jon, Adam, Drewwhich element is the tail of the list? 

Copy the empty toString() method given below, paste it into the text box below, and then write the body of the method so that it returns a String containing the item data field values for all of the nodes in a linear linked list.  Assume that the item data field is of String data type and that both item and next data fields in the Node class are private  meaning that you should invoke the .getItem() and .getNext() methods on the nodes. (5 points) public String toString() { }