Calculate the total charge of Electricity Bill in java

import java.util.*;
class Electricity_Bill
{
    public static void main(String args[])
    {
        Scanner sc = new Scanner (System.in);
        int units;
        double bill;
        System.out.println("Enter the Number of units consumed:");
        units=sc.nextInt(); 
        if(units<=100)
        bill=units*0.40;
        else if(units<=200)
        bill=(100*0.40)+(units-100)*0.50;
        else
        bill=(100*0.40)+(100*0.50)+(units-200)*0.60;
       
        System.out.println("Total Charge of Electricity Bill="+bill);
    }
}