Answer 1

Inside the main() function with java.util.Scanner imported:
int[] arr = new int[5];
for (int i = 0; i < 5; i++) {
System.out.print("Enter a number: ");
Scanner raw_in = new Scanner(System.in);
art[i] = raw_in.nextInt();
}
This code will allow 5 numbers to be inputted and stored.