Suppose that electricity costs 4.75 cents per kilowatt hour, and that a surcharge of 10% is added to the bill. A city utility tax is 3% is also levied;however no tax is charged on the surcharge, and no surcharge is added for the tax. A penalty for a late payment is 4% of the total bill. Write the java program that computes an electric bill (by Maria sh)

import java.util.Date;

import java.util.Scanner;

public class ElectricityBill 

{

/*

* 4.75 cents per KiloWatt per hour 

* Surcharge 10%

* City utility tex 3%

* 4% of total bill charged on late payment 

*/

public static void main(String[] args) 

{

int totalUnits;

double billCharged;

Scanner in = new Scanner(System.in);

Scanner ins = new Scanner(System.in);

Date date = new Date();

System.out.print("Enter total units consumed (in KiloWatt) = ");

totalUnits = in.nextInt();

billCharged = totalUnits*4.75;

System.out.println("Day of month = "+date.getDate());

if (date.getDate()> 10)

{

billCharged += billCharged * (0.10+0.04);

}

billCharged += billCharged *(0.03);

System.out.println("Your total bill = "+billCharged);

}

}

Note that 10th of each month is assumed to be the due date of bill payment. If any customer pays bill after due date, 10% surcharge and 4% of total bill on late payment will be charged.

How to use If else in switch statement in java to perform different arithmatic operations BY (Shifa Anjum)

import java.util.Scanner;


public class ConditionalSwitch {
   
    public static void main(String[] args) {
       
        Scanner in = new Scanner (System.in);
        int a,b,c=1;
       
        System.out.println("First number must be 1 to 5 and second from 1 to 100");
       
        System.out.print("Enter first number = ");
        a=in.nextInt();
        System.out.print("Enter second number = ");
        b=in.nextInt();
       
        switch(a)
        {
        case 1:
            if (b<100 && b>1)
            {
                c = a * b;
                System.out.println("Product of both numbers = "+c);
            }
            else
                System.out.println("Second number must be from 1 to 100");
            break;
        case 2:
            if (b<100 && b>1)
            {
                c = a + b;
                System.out.println("Sum of both numbers = "+c);
            }
            else
                System.out.println("Second number must be from 1 to 100");
            break;
        case 3:
            if (b<100 && b>1)
            {
                c = a - b;
                System.out.println(""+a+" - "+b+" = "+c);
            }
            else
                System.out.println("Second number must be from 1 to 100");
            break;
        case 4:
            if (b<100 && b>1)
            {
                c = a / b;
                System.out.println(""+a+" / "+b+" = "+c);
            }
            else
                System.out.println("Second number must be from 1 to 100");
            break;
        case 5:
            if (b<100 && b>1)
            {
                c = b % a;
                System.out.println("Remainder of "+b+" / "+a+" = "+c);
            }
            else
                System.out.println("Second number must be from 1 to 100");
            break;
        default:
                System.out.println("First number must be from 1 to 5");
        }
    }

}

Java program that calculates table of any given number and displays in ascending or descending order (by Sara)

import java.util.*;

class table
{
public static void main (String argsp[])
{
Scanner in = new Scanner (System.in);

int a,b,c,d=0;
System.out.print ("\n\t Enter the number to print table = ");
a=in.nextInt();
System.out.print ("\n\t Enter 1 for ascending and 2 for descending order = ");
c=in.nextInt();

if (c==1)
{
System.out.println ("\n\t Table of "+a+" in ascending order ");
b=1;
while (b<=10)
{
d=b*a;
System.out.println ("\n\t "+a+" * "+b+" = "+d);
++b;
}
}
else if (c==2)
{
System.out.println ("\n\t Table of "+a+" in ascending order ");
b=10;
while (b>0)
{
d=b*a;
System.out.println ("\n\t "+a+" * "+b+" = "+d);
--b;
}
}
else
System.out.println ("\n\t Invalid number ");

}
}

Develop a java program to generate the Electricity bill. The program have three member functions, Getdata(): to accept the block number, flat name, name and number of units, Calc(): calculate the total cost, Display(): display the bill in proper format ( name, units , total charges). If the total is greater than RM 150 then additional surcharge 15% is added (by Fikri Fieda)

import java.util.*;
class ebill
{
public static void main (String args[])
{
customerdata ob = new customerdata();
ob.Getdata();
ob.Calc();
ob.Display();

}
}

class customerdata
{
Scanner in = new Scanner (System.in);
Scanner ins = new Scanner (System.in);
String cname,fname;
int bn;
double units,tbill;

void Getdata()
{
System.out.print ("\n\t Enter block number = ");
bn = in.nextInt();
System.out.print ("\n\t Enter flate name = ");
fname = ins.nextLine();
System.out.print ("\n\t Enter customer name = ");
cname = ins.nextLine();
System.out.print ("\n\t Enter total consumed units = ");
units = in.nextDouble();
}

void Calc()
{
if (units<100)
tbill=0.40*units;
else if (units>100 && units<300)
tbill=0.50*units;
else
tbill=0.60*units;
if (tbill>150)
tbill+=tbill*0.15;
}

void Display()
{
System.out.println ("\n\t Customer name = "+cname);
System.out.println ("\n\t Total units = "+units);
System.out.println ("\n\t Total bill = RM "+tbill);
}
}