How to put a Scanner input into an array… for example a couple of numbers

Question

Scanner scan = new Scanner(System.in);
double numbers = scan.nextDouble();
double[] avg =..????

Answer 1

import java.util.Scanner;

public class Main {
    /**
     * @param args
     */
    public static void main(String[] args) {
        Scanner in=new Scanner (System.in);
        int num[]=new int[10];
        int average=0;
        int i=0;
        int sum=0;

        for (i=0;i<num.length;i++) {
            System.out.println("enter a number");
            num[i]=in.nextInt();
            sum=sum+num[i];
        }
        average=sum/10;
        System.out.println("Average="+average);
    }
}

Answer 2

List<Double> numbers = new ArrayList<Double>();
double sum = 0;

Scanner scan = new Scanner(System.in);
while(scan.hasNext()){
    double value = scan.nextDouble();
    numbers.add(value);
    sum += value;
}

double average = sum / numbers.size();

Answer 3

This is a program to show how to give input from system and also calculate sum at each level and average.

package NumericTest;

import java.util.Scanner;

public class SumAvg {


 public static void main(String[] args) {

 int i,n;
 System.out.println("Enter the number of inputs");
 Scanner sc = new Scanner(System.in);
 n=sc.nextInt();
 int a[] = new int [n];

    System.out.println("Enter the inputs");
   for(i=0;i<n;i++){
   a[i] = sc.nextInt();
  System.out.println("Inputs are " +a[i]);
 }

  int sum = 0;
  for(i=0;i<n;i++){
 sum = sum +a[i];
  System.out.println("Sums : " +sum);
 }
  int avg ;
  avg = sum/n;
  System.out.println("avg : " +avg);
  }
 }

Answer 4

double [] avg = new double[5];
for(int i=0; i<5; i++)
   avg[i] = scan.nextDouble();

Answer 5

Scanner scan = new Scanner (System.in);

for (int i=0; i<=4, i++){

    System.out.printf("Enter value at index"+i+" :");

    anArray[i]=scan.nextInt();

}

Answer 6

You can get all the doubles with this code:

List<Double> numbers = new ArrayList<Double>();
while (scan.hasNextDouble()) {
    numbers.add(scan.nextDouble());
}