You can do something like this :
Scanner sc = new Scanner(System.in);
int[] nums = new int[4];
for(int i = 0; i < nums.length; i++) {
System.out.println("Enter next number: ");
nums[i] = sc.nextInt();
Answer:
I say when u don't know the answer completly.
Go in front of the mirror and act like robot and talk ,there you have a robot voice like real human voice