Parking Fee

public class HelloWorld{

     public static void main(String []args){
        System.out.println("Fee for 23 minutes");
        System.out.println(fee(23));
        System.out.println("Fee for 60 minutes");
        System.out.println(fee(60));
        System.out.println("Fee for 61 minutes");
        System.out.println(fee(61));
        System.out.println("Fee for 93 minutes");
        System.out.println(fee(93));
        System.out.println("Fee for 163 minutes");
        System.out.println(fee(163));
        System.out.println("Fee for 263 minutes");
        System.out.println(fee(263));
        System.out.println("Fee for 420 minutes");
        System.out.println(fee(420));
        System.out.println("Fee for 421 minutes");
        System.out.println(fee(421));
        System.out.println("Fee for 1440 minutes");
        System.out.println(fee(1440));
        System.out.println("Fee for 4000 minutes");
        System.out.println(fee(4000));
        
     }
     public static double fee(int time){
         if (time <=0)
            return 0;
         else{
            double[] fee_array = {0,2,1,14,1,21};//First 30 min,31 to 60, each addition 30, up to 7 hrs, each hr after 7, max 24
            if (time >= 24*60)// for time exceeds 24
                return fee_array[5];
            else{
                if (time <= 30) // for first 30 min
                    return fee_array[0];
                else{
                    if (time <= 60) //for 31 to 60
                        return fee_array[1];
                    else{
                        if (time < 7*60){ //for btw 1hr and 7hr
                            return fee_array[1] + (time-60+30)/30*fee_array[2];
                        }
                        else{//for greater than 7hr
                            return fee_array[3] + ((time -60*7+59)/60)*fee_array[4];
                        }
                        
                    }
                }    
            }
         }
     }
}