
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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CODE IN JAVA
PLEASE SEE THAT THERE SHOULD BE TWO .JAVA FILES ONE WITH CLASS AND OTHER WITH THE MAIN METHOD
3. 2D Array
Write a class called TwoDArray that has the following behaviors for an array of ints.
- getTotal – Accepts a 2-D array as its argument and returns the total of all the values in the array
- getAverage – Accepts a 2-D array as its argument and returns the average of all the values in the array
- getRowTotal - Accepts a 2-D array as it first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The method should return the total of the values in the specified row.
- getColumnTotal - Accepts a 2-D array as it first argument and an integer as its second argument. The second argument should be the subscript of a column in the array. The method should return the total of the values in the specified column.
- getHighestInRow - Accepts a 2-D array as it first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The method should return the highest value stored in the specified row of the argument array.
- getLowestInRow - Accepts a 2-D array as it first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The method should return the lowest value stored in the specified row of the argument array.
- getElementCount - Accepts a 2-D array as its argument and returns the count of how many values are in the array.
Your client is included in your download for Module 9. It is called TwoDArrayDemo. Make no changes to TwoDArrayDemo.
Test Run
Processing the int array.
There are 6 elements in the array
Total value of elements in the array: 26
Average : 4.333333333333333
Total of row 0 : 12
Total of row 1 : 14
Total of col 0 : 9
Total of col 2 : 13
Highest in row 0 : 9
Highest in row 1 : 7
Lowest in row 0 : 1
Lowest in row 1 : 3
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