DEVRY ECET 370 Week 2 Lab 2
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General Instructions Exercises 1 , 2 , and 3 use the programs in DocSharinglabeled “ User-defined array list ."
Exercise 4 uses the programs in DocSharinglabeled “ Using java . util . ArrayList ."
Exercise 1 : Review of array-based lists Create a project using the classes in the DocSharing area labeled “ User-defined array list ." Compile it , run it , and review the code that is given carefully . This code tests the ArrayList class provided in the lecture .
Exercise 2 : A user-defined array list Modify the class ArrayList given in the lecture by adding to it the functions listed below for Exercise 2 . In each case , the appropriate error message should be generated if an invalid condition occurs . For example , an error message should be generated when trying to insert an item in a given location in the list and the location is out of range . a . ArrayList ( int size ): create a constructor that sets the size of the array list to the value passed in size ( note that the class variable SIZE cannot be final anymore ). b . int length (): create this function to determine the number of items in the list ( accessor function ). c . intgetSize (): create