What occurs when you call a method on a reference variable that contains null? select one: a. an error b. an arithmeticexception error c. a nullpointerexception error d. a classcastexception error

Write a program that keeps asking the user for new values to be added to a list until the user enters 'exit' ('exit' should not be added to the list). these values entered by the user are added to a list we call 'initial_list'. then write a function that takes this initial_list as input and returns another list with 3 copies of every value in the initial_list. finally, inside print out all of the values in the new list. for example: input: enter value to be added to list: a enter value to be added to list: b enter value to be added to list: c enter value to be added to list: exit output: a b c a b c a b c note how 'exit' is not added to the list. also, your program needs to be able to handle any variation of 'exit' such as 'exit', 'exit' etc. and treat them all as 'exit'.

If you want to delete an entire word at a time, which key should you press along with the backspace or delete key?

The length of time that a slide appears before automatically advancing to the next slide can be set in the timing group under the transitions tab. transition to this slide group under the transitions tab. timing group in the master slide view. transition to this slide group in the master slide view.