public class Population
{
   public static void main(String[] args){
   double organism;
   int days;
   double increase;
   Scanner input = new Scanner(System.in);
   System.out.print("Enter the starting number organisms: ");
   organism =  input.nextDouble();
   while(organism < 2){
       System.out.print("Invalid. Must be at least 2. Re-enter: ");
        organism =  input.nextDouble();
    }
   System.out.print("Enter the daily increase: ");
   increase = input.nextDouble();
   while(increase < 0){
       System.out.print("Invalid. Enter a non-negative number: ");
        increase = input.nextDouble();
    }
   System.out.print("Enter the number of days the organisms will multiply: ");
   days = input.nextInt();
   while(days < 1){
       System.out.print("Invalid. Enter 1 or more: ");
        days = input.nextInt();
    }
    System.out.println("Day     Organisms");
           System.out.println("-----------------------------");
          System.out.println("1"+ "       " +organism);
	for( int i = 2; i <= days; i++){
    organism += organism*increase;
		System.out.println(i+"      "+organism);
	}