Two Dimensional Array Assignment

Read Chapter 49A and 49C from the online text.

Please complete each of the following programs.

1. Spreadsheet Project

A spreadsheet is a rectangular array of cells. Each cell is either empty or contains either a value (an integer number) or a formula.

i) Your task is to load a load for the first 3 columns and first 3 rows of a 4 x 4 dimensional array with random generated numbers between 0 and 500. Leave the fourth row and the fourth column empty.

ii) Find the sum of each row and store the resulting sum in the fourth column of the row being added. Add the columns and store the resulting sum in the fourth row.

iii) Find the max and min of the random generated numbers.

iv) Print the completed array with column and row tables, along with the max and min values to the screen.

2. Pascal's Triangle - Using 2D Ragged Arrays

In Java, you can declare two-dimensional arrays easily:

int[][] myTwoD = new int[5][4];

However, this will always create a square array. A ragged array is a multi-dimensional array where the columns of each row are not equal. Pascal's Triangle is an example of how values of the triangle could be stored in a ragged array.

Write a program that generates the values of Pascal's Triangle and then stores them in a ragged array. Row 0 should have 1 column, Row 1 should have 2 columns and so on.

To learn more about Pascal's Triangle and how these numbers are generated visit http://ptri1.tripod.com