How do I fill an array with consecutive numbers

Question

I would like to fill an array using consecutive integers. I have created an array that contains as much indexes as the user enters:

Scanner in = new Scanner(System.in);
int numOfValues = in.nextInt();

int [] array = new int[numOfValues];

How do i fill this array with consecutive numbers starting from 1? All help is appreciated!!!

Answer 1

Since Java 8

//                               v end, exclusive
int[] array = IntStream.range(1, numOfValues + 1).toArray();
//                            ^ start, inclusive

The range is in increments of 1. The javadoc is here.

Or use rangeClosed

//                                     v end, inclusive
int[] array = IntStream.rangeClosed(1, numOfValues).toArray();
//                                  ^ start, inclusive

Answer 2

The simple way is:

int[] array = new int[NumOfValues];
for(int k = 0; k < array.length; k++)
    array[k] = k + 1;