Write a Java program to input electricity unit charges and calculate total electricity bill

Input electricity unit charges and calculate total electricity bill

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

Sample Output

Input electricity unit charges and calculate total electricity bill.

Enter unit: 50
Total cost: 90.0

Java-Source Code

//package ifelsejava;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        
        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);
    }
}

Sample Output

Input electricity unit charges and calculate total electricity bill.

Enter unit: 300
Total cost: 1350.0