package ifelsejava;

import java.util.Scanner;

public class Main21 {

public static void main(String[] args) {

/*

Calculate total electricity bill according to the given condition:

For first 50 units Tk. 1.50/unit

For next 100 units Tk. 2.25/unit

For next 100 units Tk. 3.00/unit

For unit above 250 Tk. 3.75/unit

An additional surcharge of 20% is added to the bill

*/

double unit, surcharge, taka = 0;

Scanner input = new Scanner(System.in);

System.out.println("Input electricity unit charges and calculate total electricity bill.\n");

System.out.print("Enter unit: ");

unit = input.nextDouble();

if (unit >= 1 && unit <= 50) {

//For first 50 units Tk. 1.50/unit

taka = unit * 1.5;

surcharge = taka * 0.2; //Surcharge 20%

taka = taka + surcharge;

} else if (unit >= 51 && unit <= 100) {

//For next 100 units Tk. 2.25/unit

taka = unit * 2.25;

surcharge = taka * 0.2; //Surcharge 20%

taka = taka + surcharge;

} else if (unit >= 101 && unit <= 250) {

//For next 100 units Tk. 3.00/unit

taka = unit * 3.0;

surcharge = taka * 0.2; //Surcharge 20%

taka = taka + surcharge;

} else if (unit >= 251) {

//For unit above 250 Tk. 3.75/unit

taka = unit * 3.75;

surcharge = taka * 0.2; //Surcharge 20%

taka = taka + surcharge;

}

System.out.println("Total cost: " + taka);

}

}