Nthis problem you’ll add a countnegative method to an existing linked list implementation. you should create a public non-final class named yoursimplelinkedlist that extends simplelinkedlist. your class should override protected int countnegative() and return the count of the number of items in the list with values less than zero. note that this list only stores ints, not objects, so you do not need to cast item values to work with them as ints. while there are both recursive and iterative solutions to this problem, we expect you to solve it iteratively by following references from the start to the end of the list. public class simplelinkedlist

The database design steps are listed below in the incorrect order. choose the correct order number next to each step. determine the information to be stored in the database. determine the fields needed to record the data determine if there will be any repetition of data entered, and separate the fields into tables to normalize the data. create relationships to connect the tables.

7.23 main lab 7 - online shopping cart background this main lab extends the earlier prep lab "online shopping cart part 1". (you should save this as a separate project from the earlier prep lab). you will create an on-line shopping cart like you might use for your on-line purchases. the goal is to become comfortable with setting up classes and using objects. requirements this lab can be done individually or as pair programming. expanded itemtopurchase class (15 points) extend the itemtopurchase class as follows. we will not do unit testing in this lab so we will not be giving you the names of the member functions. create good ones on your own. create a parameterized constructor to assign item name, item description, item price, and item quantity (default values of "none" for name and description, and 0 for price and quantity). additional public member functions set an item description get an item description print the cost of an item - outputs the item name followed by the quantity, price, and subtotal (see example) print the description of an item - outputs the item name and description (see example) additional private data members a string for the description of the item. example output of the function which prints the cost of an item: bottled water 10 @ $1.50 = $15.00 example output of the function which prints the item description:

The following if statement contains a logic error, not a syntax error. rewrite it so that it is correct. assume the variable age already exists and holds a valid number. if (age == 18 & & age == 19) {