Java creates an array of type int with 100 elements, and sets each element to 1 - 100 in turn

Create an array of type int with 100 elements, and set each element to 1 - 100 in turn

public class Test34 {
    public static void main(String[] args) {
        int[] arr=new int[100];
        set(arr);
        printArr(arr);
    }

    private static void printArr(int[] arr) {
        for (int i = 0; i < arr.length; i++) {
            if(i==arr.length){
                System.out.print(arr[i]);
            }else{
                System.out.print(arr[i]+", ");
            }

        }
    }

    private static void set(int[] arr) {
        for (int i = 0; i < arr.length; i++) {
            arr[i]=i+1;
        }
    }
}