Increase an int and then reset it and repeat.

Question

I want to have an int = 0, then increase until it reaches 4 and then reset it to 1 and then repeat this. So it goes 1 2 3 4 1 2 3 4 indefinitely.

Answer 1

public class Program
{
public static void main(String[] args) {
int i = 0;
while (i < 4) {
System.out.print(++i);
if (i == 4)
i = 0;
}
}
}

Answer 2

Use Hasan Oktay code, but i would make it sleep a second or two when you raising 4 by add Thread.sleep(2000) in your if statement.
But when using Thread.sleep it may throw an exception so use throws Exception after your main:

public static void main(String[] args) throws Exception

Or use try-catch block.