• On October 11, 2024
• By Karmehavannan
• 0 Comment
• Categories: Calculations
• Tags: C++ programs, Cpp language, operator

Electricity bill Calculation program using function in Cpp

Electricity bill calculation program using the function in Cpp

In this tutorial, we will discuss the Cpp program to Electricity bill calculation using the function

In this article, we will discuss how to calculate electricity bill in Cpp programming language using the function

We can calculate monthly electric power usage in many ways in the C++ programming language.

In this tutorial, we will write two programs calculating electricity bill in C++ language.

Before we write a program to calculate the electricity bill, we must understand electricity charges and rates.

/*1 - 100 unit - 1.5/= 
101-200 unit - 2/= 
201-300 unit - 3/= 
above 300 - 4/=*/

In my previous post, I have explained to the C++ program to calculate the electricity bill

However, in this program, we embed the logic of the Calculate electricity bill program in the function

Once this program received the units and it will calculate the electricity unit and cost per month

After receiving the input from the user, it is stored in the variable of the unit and then program calculate electricity bill

This program can have the following steps for completion of this program

• Declare total unit consumed by the customer using the variable unit.
• If the unit consumed less or equal to 50 units, calculates the total amount of usage =unit*1.50
• If unit consumed between 50 to 150 units, calculates the total amount of usage =(50*1.5)+(unit-50)*2)
• If unit consumed between 150 to 250 units ,calculates total amount of usage =(50*1.5)+(100*2)+(unit-150)*3
• If unit consumed above 250 units ,calculates total amount of usage =(50*1.5)+(100*2)+(100)*3+(unit-250)*4
• No additional charge

Without && operator

Program 1

#include 
#include 
using namespace std;

int calc_Electricity(int);//function prototype
int main()
{
    int unit=0;

    cout<<"Enter total units consumed: ";
    cin>>unit;//Reads input from user and stored in variable unit
    calc_Electricity(unit);//function call
    getch();
    return 0;
}
int calc_Electricity(int unit){//function definition
    double amount;
    if(unit<=50)
    {//below 50 units
        amount=unit*1.50;

    }
    else if(unit<=150)
    {//below 150 units
        amount=((50*1.5)+(unit-50)*2.00);
    }
    else if((unit<=250)){//below 250 units
        amount=(50*1.5)+((150-50)*2.00)+(unit-150)*3.00;
    }
    else{//above 250 units
        amount=(50*1.5)+((150-50)*2.00)+((250-150)*3.00)+(unit-250)*4;

    }
    cout<<"Electricity bill = Rs."<
When the above code is executed, it produces the following results
Enter total units consumed: 300
Electricity bill = Rs.775
With && operator
Program 2
#include 
#include 
using namespace std;

int calc_Electricity(int);//function prototype
int main()
{
    //rates apply
    // 1- 50 units - 1.50
    //51- 150 units - 2.00
    //101 - 250 units - 3.00
    //above 251  units - 4.00
    int unit=0;

    cout<<"Enter total units consumed\n";
    cin>>unit;  //Reads input from user and store in variable unit
    calc_Electricity(unit);//function call
    getch();
    return 0;
}
int calc_Electricity(int unit){//function definition
    double amount;
    if((unit>=1)&&(unit<=50))//between 1 - 50 units
    {
        amount=unit*1.50;

    }
    else if((unit>50)&&(unit<=150))//between 50  150 units
    {
        amount=((50*1.5)+(unit-50)*2.00);
    }
    else if((unit>150)&&(unit<=250)){//between 150 -  250 units
        amount=(50*1.5)+((150-50)*2.00)+(unit-150)*3.00;
    }
    else if(unit>250){//above 250 units
        amount=(50*1.5)+((150-50)*2.00)+((250-150)*3.00)+(unit-250)*4;

    }
    else{
           cout<<"No usage ";
        amount=0;
    }
    cout<<"Electricity bill = Rs"<
When the above code is executed, it produces the following results
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