PROJECT 3: Array of integers

Create an array of integers.
Display the values of each element.
Write a (void) function to display the contents of the array, one element per line.
Compute and display other values, such as sum total, mean average, etc.
Write functions to modify or manipulate an array of integers, performing operations as described in the table below.
Add buttons as indicated, and add code to mousePressed() to call each function when the corresponding button is clicked.

Each function should accept two arguments:

an array of integers
the size of the array.

NOTE: Do not use global variables in these functions; instead, use the arguments, as in the following example:

Here is an example of code that displays an array:

void show( int[] a, int m ) { // Display a list of array elements at (x,y) int spacing = 18; textSize( 16 ); for (int j=0; j<m; j=j+1) { text( a[j], x, y ); y = y + spacing; } return; }

This function returns the sum of the elements:

float sum( int[] a, int m ) { // Add 'em up! // Compute the sum; return the total. // float result=0; for (int j=0; j<m; j=j+1) { result += a[j]; } return result; }

These functions are called

when the specified key is pressed, OR . . .

when the corresponding button is clicked.

Action Key Button

reset( int a[], int m )
// Replace all numbers with random values. r RESET

calc( int a[], int m )
// Calculate new total and average. c CALC

next( int a[], int m )
// Increase each of the numbers by one. n NEXT

dbl( int a[], int m )
// Double each of the numbers. d DOUBLE

half( int a[], int m )
// Reduce each by half. h HALF

big( int a[], int m )
// Move biggest number to end of the array.
// (Swap elements, to preserve all numbers.) b BIG

sort( int a[], int m )
// Sort the entire array. s SORT

NOTE: Do not use global values in these functions; use the arguments.

KEYS The keyPressed() function should have code to call a function when the key is the first letter of that function.


    r	reset()		// Replace with random values.
    c	calc()		// Calculate new sum and average.

    n	next()		// Increase each by one.
    d	dbl()		// Double each of the numbers.
    h	half()		// Reduce each by half.
    b	big()		// Move biggest to end of array.
    s	sort()		// Sort the entire array.

BUTTONS

create buttons with names for each of these,
and add mousePressed() code to call these functions when button is pressed.