updateArrayStudy.c

/*Programmer: Chase Singhofen
Date:
Specification: Array’s Introduction
*/

//preprocessors
#include <stdio.h>
#include <stdlib.h>
#define SIZE 10//defined constant.
//main function
main() {
	//indexes of an array start with 0. 
	//int grade1, grade2, grade3 ect.... DON'T USE THIS IN ARRAY!!!!!!!!!!!
	//declared an ARRAY of int variables that has 10 elements in it
	int grades[SIZE] = { 87, 65, 98, 45 };//initializer are what is in brackets.
	int i;
	double rainfall[SIZE];//size is not a variable its an identifier. subs from define (constant).
	grades[0] =87 ;//change this grade to show first element.

	printf("the first element is %i\n", grades[0]);//
												   //for loop to each element.
	for (i = 0; i < SIZE; i++) {//uses loop for control variable to go thru each element of arry 
								//goes thu zero thru one less than given number.
		printf("element %i has %i \n", i, grades[i]);//%i not the variables. They are used each time through the loop
	}

	for (i = 0; i < SIZE; i++) {

		printf("ENTER A RAINFALL AMOUNT: ");
		scanf_s("%lf", &rainfall[i]);
		printf("rainfall %i has  %.2lf\n", i, rainfall[i]);

	}

	//end main function
	system("pause");
}