Starting Out with C++: Early Objects
8th Edition
ISBN: 9780133360929
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: Addison-Wesley
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Question
Chapter 8.6, Problem 8.10CP
Program Plan Intro
Array:
An array is a data structure which stores multiple values of same types of data; the array values are stored in continuous memory locations.
- Size of an array has been declared inside a square bracket, which is named as size declarator.
- The size declarator must be declared as an integer with a value greater than “0” and the number inside the brackets represents the number of elements that the array can hold.
Syntax:
Syntax to declare an array,
data_type array_name[size_declarator];
Example:
Example to declare an array,
//Declaration of an array
int values[5];
In the above example, “int” represents the data type of the array, “values” is the array name and the number inside the bracket is the size declarator of the array.
- Here, the array “values” holds “5” values.
- The array index values starts from “0” and ends with “4” to hold five elements.
Given code:
/*Array declaration of type double that is assigned to hold four values. */
double array1[4] = {1.2, 3.2 , 4.2, 5.2};
/*Array declaration of type double that can hold four values. */
double array2[4] ;
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8 void printArray(int myArr[][ARRAY_COLS])
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const int ARRAY_COLS = 10;
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for (int i = 0; i < ARRAY_ROWS; i++)
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myArr[0][0] = 999;
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}
This function currently sets the upper-left-hand corder of the 2D array to 999
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29 - /*
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HINT: function printArray() is an example of Looping through every element in 2D array
*/
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// TODO - put code here
std::cout << "\n";
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int arr[][ARRAY_COLS] {
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JAVA PROGRAM
Chapter 7. PC #16. 2D Array Operations
Write a program that creates a two-dimensional array initialized with test data. Use any primitive data type that you wish. The program should have the following methods:
• getTotal. This method should accept a two-dimensional array as its argument and return the total of all the values in the array.
• getAverage. This method should accept a two-dimensional array as its argument and return the average of all the values in the array.
• getRowTotal. This method should accept a two-dimensional array as its 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. This method should accept a two-dimensional array as its 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…
Chapter 8 Solutions
Starting Out with C++: Early Objects
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